Crown Audio Stereo Amplifier 140MPA User Manual

Commercial Audio Series  
140MPA  
Operation Manual  
Obtaining Other Language Versions: To obtain information in another language about the use of this product, please contact your  
local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8000.  
This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible  
situation which may arise during installation, operation or maintenance.  
The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have  
Trademark Notice: Crown, Crown Audio and Amcron are registered trademarks of Crown International. Other trademarks are the  
property of their respective owners.  
Some models may be exported under the name Amcron.®  
©2006 by Crown Audio® Inc., 1718 W. Mishawaka Rd., Elkhart, Indiana 46517-9439 U.S.A. Telephone: 574-294-8200  
139431-2  
8/06  
 
Commercial Audio Series Mixer-Amplifiers  
Crown International, Inc.  
DECLARATION of CONFORMITY  
Issued By: Crown International, Inc.  
1718 W. Mishawaka Road  
Sue Whitfield  
FOR COMPLIANCE QUESTIONS ONLY:  
574-294-8289  
Elkhart, Indiana 46517 U.S.A.  
European Representative’s Name and Address:  
Nick Owen  
35, Bassets Field  
Thornhill  
Cardiff. South Glamorgen  
CF14 9UG United Kingdom  
Equipment Type: Commercial Audio Mixer-Amplifiers  
Family Name: Mixer-Amplifiers  
Model Names: 140MPA  
EMC Standards:  
EN 55103-1:1997 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions  
EN 55103-1:1997 Magnetic Field Emissions-Annex A @ 10 cm and 1 M  
EN 61000-3-2:2001 Limits for Harmonic Current Emissions (equipment input current 16A per phase)  
EN 61000-3-3:2002 Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply Systems Rated Current 16A  
EN 55022:2003 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE: Radiated, Class B Limits; Conducted, Class B  
EN 55103-2:1997 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 2: Immunity  
EN 61000-4-2:2001 Electrostatic Discharge Immunity (Environment E2-Criteria B, 4k V Contact, 8k V Air Discharge)  
EN 61000-4-3:2001 Radiated, Radio-Frequency, Electromagnetic Immunity (Environment E2, Criteria A)  
EN 61000-4-4:2001 Electrical Fast Transient/Burst Immunity (Criteria B)  
EN 61000-4-5:2001 Surge Immunity (Criteria B)  
EN 61000-4-6:2003 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields (Criteria A)  
EN 61000-4-11:2001 Voltage Dips, Short Interruptions and Voltage Variation  
Safety Standard:  
IEC 60065: 2002 7th Ed. Safety Requirements - Audio Video and Similar Electronic Apparatus  
CAN/CSA-E60065-03 7th Ed. Audio, Video and Similar Electronic Apparatus-Safety Requirements  
UL 60065 7th Ed. Audio /Video and Musical Instrument Apparatus for Household, Commercial and Similar General Use.  
I certify that the product identified above conforms to the requirements of the EMC Council Directive 89/336/EEC as amended by 92/31/EEC, and the Low Voltage Directive 73/23/EES as amended by 93/68/EEC.  
Signed  
Date of Issue: Feb. 1, 2006  
Larry Coburn  
Title: Senior Vice President of Manufacturing  
Due to line current harmonics, we recommend that you contact your supply authority before connection.  
Operation Manual  
page 3  
 
Commercial Audio Series Mixer-Amplifiers  
Table of Contents  
Important Safety Instructions .......................................................2  
Declaration of Conformity ............................................................3  
1 Welcome ................................................................................5  
1.1 Features ...........................................................................5  
1.2 Front Panel Controls and Indicators ................................ 6  
1.3 Back Panel Controls and Connectors................................7  
2 Setup ......................................................................................8  
2.1 Installation........................................................................8  
2.2 How to Attach Rack Ears...................................................8  
2.3 Choose Input Wire and Connectors .................................9  
2.4 Choose Output Wire and Connectors ...............................10  
2.5 Wire Your System ............................................................11  
2.6 Phantom Power ................................................................11  
2.7 Link In/Out Switch............................................................11  
2.8 Remote Volume Control....................................................12  
3 Operation .................................................... 13  
3.1 Powering Up......................................................................13  
3.2 Priority Ducking ................................................................13  
3.3 Music-On-Hold.................................................................13  
4 Troubleshooting................................................................... 14  
5 Specification ........................................................................ 15  
6 Service................................................................................... 16  
6.1 Worldwide Service .......................................................... 16  
6.2 US and Canada Service .................................................. 16  
6.2.1 Service at a US or Canada Service Center ............. 16  
6.2.2 Factory Service ...................................................... 16  
6.2.3 Factory Service Shipping Instructions ................... 16  
6.2.4 Packing Instructions............................................... 16  
6.2.5 Estimate Approval................................................... 16  
6.2.6 Payment of Non-Warranty Repairs.......................... 16  
7 Warranty .............................................................................. 17  
Product Registration................................................................... 19  
Crown Factory Service Information Form .....................................21  
page 4  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
*1 kHz  
Power  
140MPA  
Minimum guaranteed power  
into 4 ohms or 25V/70V output  
40W  
*1 kHz Power: refers to maximum power in watts at  
1 kHz with 0.5% THD.  
1.1 Features  
1 Welcome  
• 4 inputs (each with a volume control), one  
40W amplifier output channel  
T he Crown® 140MPA is a high-value mixer-  
amplifier for commercial audio. It provides 4-  
ohm and constant-voltage outputs (25V and  
70V). Typical uses are paging, background  
music, and music-on-hold.  
• Ideal for paging, background music, and  
music-on-hold  
• Balanced Phoenix-type mic/line inputs, tele-  
phone input, dual RCA stereo music inputs,  
touch-proof screw-terminal speaker outputs  
The unit provides 4 inputs (each with a volume  
control) and a 40W amplifier output.  
Other features include priority ducking, phan-  
tom power, and capability for remote volume  
control. Multiple units can be linked.  
• Priority ducking  
• Independent bass and treble controls for  
each input  
• Three-Year, No-Fault, Fully Transferable  
Warranty completely protects your invest-  
ment and guarantees its specifications  
Operation Manual  
page 5  
 
Commercial Audio Series Mixer-Amplifiers  
1 Welcome  
1.2 Front Panel Controls and Indicators  
D. Output Signal Presence Indicator: Green LED  
illuminates when output signal level exceeds 100 mV (45  
dB below full power) from the 4-ohm tap.  
A. Input Signal Presence Indicator: Green LED,  
one for each input channel, illuminates when input sig-  
nal exceeds –40 dBu.  
E. Clip Indicator: Red LED on output illuminates at  
threshold of audible distortion.  
B. Input Volume Controls: Four controls, one per  
input. Detented potentiometers with knobs.  
F. Power Indicator: Blue LED indicates power on.  
G., H. Tone Controls: Bass and Treble non-detented  
recessed potentiometer on each input channel. Bass 10  
dB at 100 Hz, Treble 10 dB at 10 kHz.  
C. Master Output Volume Control: Detented poten-  
tiometer with knob.  
I. Power Switch: Pushbutton on-off switch.  
Figure 1.1 Front Panel Controls and Indicators  
page 6  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
1 Welcome  
P. Music-On-Hold Section  
MOH 1V Level Control: Trim pot adjusts level for Music-On-Hold 1V  
output.  
T. Input 1 Section  
1.3 Back Panel Controls, Connectors and Indica-  
tors  
Balanced Input Connector: Detachable 3-pin Phoenix style connector  
for balanced mic-level or line-level signals.  
J. Reset Switch: Resets the circuit breaker that protects the power  
supply.  
MOH 1W Level Control: Trim pot adjusts level for Music-On-Hold  
1W output.  
Dual RCA Input Connector: For stereo music signals, unbalanced,  
summed together.  
K. Amplifier Output Connector: 4-position terminal strip with  
COM (Common), 4 ohms, 25V and 70V terminals. Accepts up to 10  
AWG terminal forks. Non-touch cover included.  
MOH SPI Indicator: Flashes when MOH signal is present.  
Mic/line Switch: Selects mic-level or line-level signal for Input 1.  
Phantom Power Switch: Turns phantom power on or off for Input 1.  
MOH 1V Phoenix Connector: 3-pin Phoenix connector for 1V, 600-  
ohm transformer-isolated output.  
Tel Connector: Transformer-isolated 600-ohm input connector,  
summed into Input 1 for paging from a telephone system.  
L. Preamp Line Out Connector: 3-pin balanced Phoenix-type  
connector. Post master, pre-VCA. Level controlled by master volume  
control.  
MOH 1W Phoenix Connector: 3-pin Phoenix connector for 1W out-  
put.  
U. AC Power Inlet: Detachable IEC.  
V. Priority Section  
MOH 1V RCA Connector: Two mono RCA connectors for 1V output  
(in parallel with 600-ohm connections so they are isolated).  
M. Link In/Out Switch: Slide switch. When set to IN, any signal  
applied to the Amp Input connector will be mixed with the input sig-  
nal(s). When set to OUT, only the signal from the Amp Input Connec-  
tor will appear at the amplifier output.  
Active indicator: Illuminates when VOX ducking is active.  
Q. Input 4 Section  
Balanced Input Connector: Detachable 3-pin Phoenix style connector  
for balanced line-level signals, one per input channel.  
VOX Threshold: Trim pot controls how loud the voice must be before  
ducking occurs. Can be set for no ducking.  
N. Amp Input Connector: 3-pin Phoenix-type, high-impedance  
balanced. Used to link an additional mixer to the mixer-amplifier.  
Can be used to connect an external processor.  
Dual RCA Input Connector: For stereo music signals, unbalanced,  
summed together, two connectors per input channel.  
Priority Connector: 3-pin Phoenix-type connector for push-to-talk  
mic contact closure. Input 1 is the priority input for the amplified out-  
put, so Input 1 ducks the other inputs. Threshold of activation  
depends on input voltage. Ducking does not affect MOH outputs.  
R. Input 3 Section  
Same as Input 4 Section.  
O. Output VCA Connector: 4-pin Phoenix-type connector for two  
VCA control lines of +10 VDC and ground. Compatible with Crown  
1-VCAP module.  
Priority Release: Trim pot sets the release time of VOX ducking.  
S. Input 2 Section  
Same as Input 4 Section.  
Figure 1.2 Back Panel Controls, Connectors and Indicators  
Operation Manual  
page 7  
 
Commercial Audio Series Mixer-Amplifiers  
2 Setup  
2.1 Installation  
side walls of the rack should be a minimum of two  
inches (5.1 cm) away from the mixer-amplifier  
sides, and the back of the rack should be a mini-  
mum of four inches (10.2 cm) from the mixer-  
amplifier back panel.  
CAUTION: Before you begin, make sure your  
mixer-amplifier is disconnected from the  
power source, with the power switch in the  
“off” position and all level controls turned  
completely down (counterclockwise).  
2.2 How to Attach Rack Ears  
Use a standard 19-inch (48.3 cm) equipment rack  
(EIA RS-310B). See Figure 2.1 for amplifier dimen-  
sions.  
1. Locate the two rack ears and two rack-ear screws  
supplied.  
2. See Figure 2.2. Remove the two screws from each  
side of the chassis near the front.  
3. Place a rack ear flush with the right front of the  
chassis.  
4. Insert a screw that you removed into the bottom  
hole of the rack ear and chassis. Screw it in.  
5. Insert a screw that you removed into the center  
hole of the rack ear and chassis. Screw it in.  
6. Insert one of the supplied screws into the top hole  
of the rack ear and chassis. Screw it in.  
7. Repeat steps 3-6 for the left side of the chassis.  
You may also stack mixer-amps without using a  
cabinet, or you may place a single mixer-amp on a  
surface with 12 inches of air space around the unit  
for convection cooling.  
Figure 2.2 How to Connect Rack Ears  
NOTE: When transporting in a rack, mixer-amps  
should be supported at the front and back.  
When using an equipment rack, do not mount units  
directly on top of each other. Allow 2 rack units (3.5  
inches) between units for convection cooling. The  
Figure 2.1 Dimensions  
page 8  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
2 Setup  
2.3 Choose Input Wire and Connectors  
Crown recommends using pre-built or professionally wired bal-  
anced line (two-conductor plus shield), 22-24 gauge cables and  
connectors. Unbalanced line may also be used but may result in  
noise over long cable runs.  
MIC  
The 140MPA has two types of input connectors: Phoenix-type  
and RCA.  
• Mic/Line Connectors and Amp Input Connectors: 3-pin  
Phoenix-type, balanced, one per input channel (Figure 2.3).  
• Dual RCA Input Connector: For stereo music signals,  
unbalanced, summed together, two connectors per input (Figure  
2.4).  
• Transformer-isolated 600-ohm input: 3-pin Phoenix-  
type. Summed into Input 1 for paging from a telephone system.  
See Figure 2.5.  
To stereo  
line-level  
source  
-
Figure 2.4 Dual RCA Input Connectors  
To telephone system  
interface/PBX output  
To mic or line-level source  
Figure 2.3 Mic/Line Connectors  
and Amp Input Connectors  
Figure 2.5 Tel (Isolated)  
Connector Wiring  
from Telephone System  
Interface or PBX  
Operation Manual  
page 9  
 
Commercial Audio Series Mixer-Amplifiers  
2 Setup  
2.4 Choose Output Wire and Connectors  
AMPLIFIER OUTPUTS  
Amplifier Output Connections: Slip the cable lugs under the  
output screw terminals and tighten (Figure 2.6). Cover the output  
connections with the supplied non-touch cover.  
Crown recommends using pre-built or professionally wired,  
high-quality, two-conductor, heavy gauge speaker wire and con-  
nectors. You may use crimp-on spade lugs for your output con-  
nectors. To prevent the possibility of short-circuits, wrap or  
otherwise insulate exposed loudspeaker cable connectors. Cover  
the output connections with the supplied non-touch cover.  
Using the guidelines below, select the appropriate size of wire  
based on the distance from amplifier to speaker. The wire sizes  
apply to the 4-ohm tap.  
-
Distance  
up to 25 ft.  
Wire Size  
16 AWG  
Figure 2.6 Amplifier Output Connections  
26-40 ft.  
41-60 ft.  
14 AWG  
12 AWG  
10 AWG  
8 AWG  
Figure 2.7 Connections to the Preamp  
Line Out Connector  
To telephone system  
interface/PBX input  
61-100 ft.  
101-150 ft.  
151-250 ft.  
Figure 2.8 Connections to the MOH  
Line Output Phoenix Connector (1V or  
1W Connector)  
6 AWG  
NOTE: Custom wiring should only be performed by  
qualified personnel. Class 2 wiring is required.  
Music-On-Hold Connections  
If you have an external FM or XM tuner connected to the  
140MPA, you can play its music over a phone line while  
the caller is on hold. Use one of the connectors below to  
connect the 140MPA to the Music-On-Hold input on your  
telephone system interface/PBX.  
CAUTION: Never use shielded cable for output power  
wiring.  
Use 2-conductor shielded cable and a 3-pin Phoenix-type con-  
nector for Preamp Line Output (Figure 2.7), and for MOH 1V or  
1W output (Figure 2.8).  
• MOH 1V Line Output Phoenix Connector: 3-pin  
Phoenix connector, 600-ohm transformer-isolated output,  
provides Music-On-Hold signal of approximately 1 volt.  
See Figure 2.8.  
Use 1-conductor shielded cable and RCA plugs for the MOH 1V  
Line Output RCA Connector (Figure 2.9).  
MOH 1W Line Output Connector: 3-pin Phoenix  
connector provides Music-On-Hold signal of approxi-  
mately 1 watt. See Figure 2.8.  
To telephone system  
interface/PBX  
• MOH 1V Line Output RCA Connectors: Two RCA  
connectors (mono) for 1-volt Music-On-Hold output (in  
parallel with 600-ohm connectors, so they are isolated).  
See Figure 2.9.  
Figure 2.9 Connections to the MOH  
Stereo Line Out Connector  
page 10  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
2 Setup  
2.5 Wire Your System  
Typical input and output wiring is shown in Figure 2.10.  
INPUTS: For Input 1, connect a microphone or balanced line-level  
signal to the Input 1 balanced input. Set the Mic/Line switch accord-  
ingly. Connect unbalanced line-level signals to the RCA input con-  
nectors.  
Satellite Receiver  
For Inputs 2-4, connect a balanced line-level signal to the balanced  
input. Connect unbalanced line-level signals to the RCA input con-  
nectors.  
OUTPUTS: Maintain proper polarity (+/–) on amplifier output con-  
nectors.  
Connect the Amplifier Output screw terminals to the loudspeaker  
loads. Use terminals marked COM and 70V or 100V for constant-  
voltage loudspeaker loads. Use terminals marked COM and 4 ohms  
for 4-ohm speakers.  
Connect the COM terminal to speaker negative (–) lead; connect one  
of the other terminals to speaker positive (+) lead.  
2.6 Phantom Power  
Condenser mics require phantom power to operate. If you are using a  
condenser microphone on Input 1, turn on the Phantom Power  
Switch on the back of the 140MPA. The microphone must be able to  
work on 15V phantom power, which the 140MPA mic input connector  
provides.  
2.7 Link In/Out Switch  
This switch (Figure 2.11) affects which signals are heard when  
another mixer is wired to the 140MPA.  
IN: Any signal applied to the AMP INPUT connector will be mixed  
with the input signal(s).  
OUT: Only the signal from the AMP INPUT connector will appear at  
the amplifier output.  
Figure 2.10 Input and Output Wiring  
How to link another mixer to the 140MPA:  
Connect the extra mixer’s LINE OUT connector to the 140MPA AMP  
INPUT connector. Set the Link switch to IN.  
How to set up Music-On-Hold output:  
Connect 140MPA LINE OUT to the Music-On-Hold input on a tele-  
phone system interface/PBX. Set the LINK SWITCH to IN.  
Figure 2.11 Link In/Out Switch  
How to set up a processing loop:  
Connect 140MPA LINE OUT to processor input. Connect processor  
output to 140MPA AMP INPUT connector. Set the Link switch to OUT.  
Operation Manual  
page 11  
 
Commercial Audio Series Mixer-Amplifiers  
2 Setup  
2.8 Remote Volume Control  
You can remote-control the output volume of the 140MPA. To do so,  
locate the OUTPUT VCA connector on the back panel. Insert a 4-pin  
Phoenix-type cable connector into the OUTPUT VCA connector. Wire a  
Crown 1-VCAP level control to the Phoenix-type cable connector ter-  
minals as shown in Figure 2.12.  
Output VCA Connector  
Phoenix-type  
plug  
Figure 2.12 Wiring a 1-VCAP Level Control  
to the Output VCA Connector  
Output VCA Connector  
page 12  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
3 Operation  
3.1 Powering Up  
1. Turn off any equipment connected to the Line Out connectors.  
2. Plug the amplifier’s power cord into a 3-wire grounded AC outlet.  
3. Turn down the input volume controls.  
4. Turn down the master volume control.  
5. Turn on the Power switch. The Power indicator should glow.  
6. Turn the input volume controls in use about 3/4 up.  
7. Turn up the master volume control(s) until the desired loudness or power  
level is achieved.  
8. Touch up the input levels as needed for equal loudness from each micro-  
phone.  
9. Turn on any equipment connected to the Line Out connectors.  
If you ever need to make any wiring or installation changes, disconnect the  
power cord.  
Figure 3.1 Priority Ducking Controls  
and Connectors  
3.2 Priority Ducking  
If you want a microphone to duck (turn down) the background music or other  
input signals, follow this procedure. On the back of the 140MPA,  
1. Connect a push-to-talk mic contact to the Priority Connector (Figure 3.1).  
Input 1 is the priority input for the amplified output, so Input 1 ducks the other  
inputs. Threshold of activation depends on input voltage. Ducking does not  
affect MOH outputs.  
2. Adjust the VOX Threshold trim pot on the back of the unit to set how loud  
the voice must be before ducking occurs. It can be set for no ducking.  
3. Adjust the Priority Release trim pot for the desired ducking release time.  
The Active Indicator lights when ducking is active.  
3.3 Music-On-Hold  
On the back of the unit, adjust either the 1V or 1W MOH Level Control to obtain  
the desired level of Music-On-Hold on your phone system.  
Operation Manual  
page 13  
 
Commercial Audio Series Mixer-Amplifiers  
4 Troubleshooting  
CONDITION: No sound.  
CONDITION: No power to the  
mixer-amplifier.  
POSSIBLE REASON:  
POSSIBLE REASON:  
The amplifier is in “fault” mode. A Fault status  
can be triggered when one of the amplifier’s  
protection circuits is activated. First disconnect  
your speakers from the affected channel(s) one  
by one to determine if one of the loads is  
shorted. If an amplifier channel has a thermal  
fault, there will be no indication on the front  
panel, but the amp will recover after cooling. If  
operation does not return to normal after  
restarting your amp, press the Reset button on  
the back of the unit. If that does not work, return  
the unit to Crown or an authorized Crown Ser-  
vice Center for servicing.  
The mixer-amplifier’s Power switch is off.  
[NO GRAPHIC IS NEEDED  
HERE]  
The mixer-amplifier is not plugged into the  
power receptacle.  
The mixer-amplifier’s high-voltage power sup-  
ply circuit breaker has tripped. Verify that the  
AC mains voltage is correct, then press the  
Reset button on the back panel.  
No input signal.  
Input signal level is very low.  
CONDITION: Distorted sound.  
POSSIBLE REASON:  
Input signal level is too high. Turn down your  
input volume controls. NOTE: Your mixer-  
amplifier should never be operated at a level  
which causes the Clip LEDS to illuminate con-  
stantly.  
Master volume level is too high. Turn it down  
to about 3/4 of maximum level.  
KEY  
LED OFF  
LED ON  
page 14  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
5 Specifications  
Minimum Guaranteed Power  
140MPA  
1 kHz with 0.5% THD  
Minimum guaranteed power into 4 ohms or 25V/70V output  
40W  
Performance  
Number of input channels  
4
1
Number of power amplifiers  
Input Sensitivity (volts RMS) for full output at maximum gain  
3 mV  
800 mV  
400 mV  
Balanced mic inputs  
Balanced line inputs  
RCA connectors  
Frequency Response (at 1 watt from 8-ohm tap, 50 Hz - 15 kHz)  
Frequency Response (at line out, 50 Hz to 15 kHz)  
Power Bandwidth (at 8-ohm tap, 2 dB below maximum 1 kHz power)  
Signal to Noise Ratio (ref. to rated power, master volume at minimum)  
Total Harmonic Distortion (THD) at rated power at 1 kHz  
DC Output Offset  
1 dB  
1 dB  
50 Hz to 20 kHz with < 0.5% THD  
> 90 dB  
< 0.5%  
<
5 mV  
Input Impedance (nominal)  
Mic: 400 ohms, Line: 100 kilohms,  
RCA: 50 kilohms  
Crosstalk (all controls at “10”)  
Line Output Level (nominal)  
Phantom Power  
–70 dB at 1 kHz  
1V into 10 kilohms  
15 VDC  
AC Line Voltages Available  
120V, 60 Hz.  
Line voltage tolerance +15%, –20%  
o
o
Operating Temperature/Humidity  
0
C to 40 C at 95% relative humidity  
(non-condensing)  
o
o
Storage Temperature  
–20 C to 85  
C
Construction  
Cooling  
Convection cooled  
Dimensions  
Width without rack ears: 17.3 in. (43.8 cm)  
Width with rack ears: EIA Standard 19 in. W (EIA RS-310-B)  
Height of front panel: 3.5 in. (8.9 cm)  
Height including feet: 4.1 in. (10.5 cm)  
Depth from front panel to back panel: 12.2 in. (31.0 cm)  
Depth from front of knobs to back of non-touch cover:  
13.9 in. (35.2 cm)  
Net Weight, Shipping Weight  
17 lb (7.7 kg), 22 lb (9.98 kg)  
Operation Manual  
page 15  
 
Commercial Audio Series Mixer-Amplifiers  
6 Service  
Crown mixer-amplifiers are quality units that rarely  
require servicing. Before returning your unit for servic-  
ing, please contact Crown Technical Support to verify the  
need for servicing.  
4. Use a bold black marker and write the SRA number  
ber to transport the unit in the original factory pack. A list  
of authorized service centers in your area can be obtained  
from Crown Factory Service, or online from  
on three sides of the box.  
Cardboard  
support  
5. Record the SRA number for future reference. The  
SRA number can be used to check the repair status.  
This unit has very sophisticated circuitry which should  
only be serviced by a fully trained technician. This is one  
reason why each unit bears the following label:  
6.2.2 Factory Service  
6.2.4 Packing Instructions  
Mixer-amp  
Crown accepts no responsibility for non-serviceable  
product that is sent to us for factory repair. It is the  
owner’s responsibility to ensure that their product is ser-  
viceable prior to sending it to the factory. Serviceable  
product list is available at  
Important: These instructions must be followed. If they  
are not followed, Crown Audio, Inc. assumes no respon-  
sibility for damaged goods and/or accessories that are  
sent with your unit.  
CAUTION: To prevent electric shock, do not  
remove covers. No user serviceable parts  
inside. Refer servicing to a qualified technician.  
Bag  
Cardboard  
support  
For more information, please contact us direct.  
Complete the Crown Audio Factory Service Information  
form, in the back of this manual, when returning a Crown  
product to the factory or authorized service center. The  
form must be included with your product inside the box  
or in a packing slip envelope securely attached to the  
outside of the shipping carton. Do not send this form  
separately.  
1. Fill out and include the Crown Audio Factory Ser-  
vice Information sheet in the back of this manual.  
A Service Return Authorization (SRA) is required for  
product being sent to the factory for repair. An SRA can  
factserv.htm. If you do not have access to the web, please  
call Crown’s Customer Service at 574.294.8200 or  
800.342.6939 extension 8205 in North America, Puerto  
Rico and the Virgin Islands only.  
2. Do not ship any accessories (manuals, cords, hard-  
ware, etc.) with your unit. These items are not  
needed to service your product. We will not be  
responsible for these items.  
Figure 6.1 Packing.  
Put this assembly in carton.  
6.2.5 Estimate Approval  
3. When shipping your Crown product, it is important  
that it has adequate protection. We recommend you  
use the original pack material when returning the  
product for repair (Figure 9.1). If you do not have the  
original box, please call Crown at 800.342.6939 or  
574.294.8210 and order new pack material. (Do not  
ship your unit in a wood or metal cabinet.)  
Approval of estimate must be given within 90 days after  
being notified by Crown Audio Inc. Units still in the pos-  
session of Crown after 90 days of the estimate will  
become the property of Crown Audio Inc.  
6.1 Worldwide Service  
Service may be obtained from an authorized service cen-  
ter. (Contact your local Crown/Amcron representative or  
our office for a list of authorized service centers.) To  
obtain service, simply present the bill of sale as proof of  
purchase along with the defective unit to an authorized  
service center. They will handle the necessary paperwork  
and repair.  
For warranty service, we will pay for ground shipping  
both ways in the United States. Contact Crown Customer  
Service to obtain prepaid shipping labels prior to send-  
ing the unit. Or, if you prefer, you may prepay the cost of  
shipping, and Crown will reimburse you. Send copies of  
the shipping receipts to Crown to receive reimbursement.  
6.2.6 Payment of Non-Warranty Repairs  
Payment on out-of-warranty repairs must be received  
within 90 days of the repair date. Units unclaimed after  
90 days become the property of Crown Audio Inc.  
4. If you provide your own shipping pack, the mini-  
mum recommended requirements for materials are  
as follows:  
Your repaired unit will be returned via UPS ground.  
Please contact us if other arrangements are required.  
Remember to transport your unit in the original factory  
pack.  
If you have any questions, please contact Crown Factory  
Service.  
a. 275 P.S.I. burst test, Double-Wall carton that  
allows for 2-inch solid Styrofoam on all six  
sides of unit or 3 inches of plastic bubble wrap  
on all six sides of unit.  
6.2.3 Factory Service Shipping Instruc-  
tions:  
6.2 US and Canada Service  
Crown Factory Service  
1718 W. Mishawaka Rd.,  
Elkhart, Indiana 46517 U.S.A.  
Service may be obtained in one of two ways: from an  
authorized service center or from the factory. You may  
choose either. It is important that you have your copy of  
the bill of sale as your proof of purchase.  
1. Service Return Authorization (SRA) is required for  
product being sent to the factory for service. Please  
dio.com/support/factserv.htm. If you do not have  
access to our website, call 1.800.342.6939, exten-  
sion 8205 and we'll create the SRA for you.  
b. Securely seal the package with an adequate car-  
ton sealing tape.  
Telephone:  
574.294.8200  
800.342.6939 (North America,  
Puerto Rico, and Virgin Islands only)  
c. Do not use light boxes or “peanuts”. Damage  
caused by poor packaging will not be covered  
under warranty.  
6.2.1 Service at a US or Canada Service  
Center  
This method usually saves the most time and effort. Sim-  
ply present your bill of sale along with the defective unit  
to an authorized service center to obtain service. They  
will handle the necessary paperwork and repair. Remem-  
2. See packing instructions that follow.  
Facsimile:  
574.294.8301 (Technical Support)  
574.294.8124 (Factory Service)  
3. Ship product to:  
Enclose the completed Crown Audio Factory Service  
Information form (or securely attach it to the outside of  
carton) and re-seal the shipping pack with a sturdy carton  
sealing tape.  
CROWN AUDIO FACTORY SERVICE  
1718 W MISHAWKA RD.  
ELKHART, IN 46517  
Internet:  
page 16  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
7 Warranty  
UNITED STATES & CANADA  
SUMMARY OF WARRANTY  
est, insurance, closing costs, and other finance  
charges less a reasonable depreciation on the  
product from the date of original purchase. War-  
ranty work can only be performed at our autho-  
rized service centers or at the factory. Warranty  
work for some products can only be performed at  
our factory. We will remedy the defect and ship  
the product from the service center or our factory  
within a reasonable time after receipt of the defec-  
tive product at our authorized service center or  
our factory. All expenses in remedying the defect,  
including surface shipping costs in the United  
States, will be borne by us. (You must bear the  
expense of shipping the product between any for-  
eign country and the port of entry in the United  
States including the return shipment, and all  
taxes, duties, and other customs fees for such for-  
eign shipments.)  
FROM ANY DEFECT IN THE NEW CROWN  
PRODUCT. THIS INCLUDES ANY DAMAGE TO  
ANOTHER PRODUCT OR PRODUCTS RESULT-  
ING FROM SUCH A DEFECT. SOME STATES DO  
NOT ALLOW THE EXCLUSION OR LIMITATIONS  
OF INCIDENTAL OR CONSEQUENTIAL DAM-  
AGES, SO THE ABOVE LIMITATION OR EXCLU-  
SION MAY NOT APPLY TO YOU.  
Crown International, 1718 West Mishawaka Road,  
Elkhart, Indiana 46517-4095 U.S.A. warrants to  
you, the ORIGINAL PURCHASER and ANY SUB-  
SEQUENT OWNER of each NEW Crown product,  
for a period of three (3) years from the date of  
purchase by the original purchaser (the “warranty  
period”) that the new Crown product is free of  
defects in materials and workmanship. We further  
warrant the new Crown product regardless of the  
reason for failure, except as excluded in this War-  
ranty.  
WARRANTY ALTERATIONS  
No person has the authority to enlarge, amend, or  
modify this Crown Warranty. This Crown War-  
ranty is not extended by the length of time which  
you are deprived of the use of the new Crown  
product. Repairs and replacement parts provided  
under the terms of this Crown Warranty shall  
carry only the unexpired portion of this Crown  
Warranty.  
ITEMS EXCLUDED FROM THIS  
CROWN WARRANTY  
This Crown Warranty is in effect only for failure of  
a new Crown product which occurred within the  
Warranty Period. It does not cover any product  
which has been damaged because of any inten-  
tional misuse, accident, negligence, or loss which  
is covered under any of your insurance contracts.  
This Crown Warranty also does not extend to the  
new Crown product if the serial number has been  
defaced, altered, or removed.  
HOW TO OBTAIN WARRANTY  
SERVICE  
DESIGN CHANGES  
We reserve the right to change the design of any  
product from time to time without notice and with  
no obligation to make corresponding changes in  
products previously manufactured.  
You must notify us of your need for warranty ser-  
vice within the warranty period. All components  
must be shipped in a factory pack, which, if  
needed, may be obtained from us free of charge.  
Corrective action will be taken within a reason-  
able time of the date of receipt of the defective  
product by us or our authorized service center. If  
the repairs made by us or our authorized service  
center are not satisfactory, notify us or our autho-  
rized service center immediately.  
LEGAL REMEDIES OF PURCHASER  
WHAT THE WARRANTOR WILL DO  
THIS CROWN WARRANTY GIVES YOU SPECIFIC  
LEGAL RIGHTS, YOU MAY ALSO HAVE OTHER  
RIGHTS WHICH VARY FROM STATE TO STATE.  
No action to enforce this Crown Warranty shall be  
commenced after expiration of the warranty  
period.  
We will remedy any defect, regardless of the rea-  
son for failure (except as excluded), by repair,  
replacement, or refund. We may not elect refund  
unless you agree, or unless we are unable to pro-  
vide replacement, and repair is not practical or  
cannot be timely made. If a refund is elected, then  
you must make the defective or malfunctioning  
product available to us free and clear of all liens  
or other encumbrances. The refund will be equal  
to the actual purchase price, not including inter-  
DISCLAIMER OF CONSEQUENTIAL  
AND INCIDENTAL DAMAGES  
THIS STATEMENT OF WARRANTY SUPERSEDES  
ANY OTHERS CONTAINED IN THIS MANUAL  
YOU ARE NOT ENTITLED TO RECOVER FROM  
US ANY INCIDENTAL DAMAGES RESULTING  
FOR CROWN PRODUCTS.  
12/01  
Operation Manual  
page 17  
 
Commercial Audio Series Mixer-Amplifiers  
7 Warranty  
WORLDWIDE EXCEPT USA & CANADA  
SUMMARY OF WARRANTY  
WHAT THE WARRANTOR WILL DO  
DISCLAIMER OF CONSEQUENTIAL AND  
INCIDENTAL DAMAGES  
Crown International, 1718 West Mishawaka Road,  
Elkhart, Indiana 46517-4095 U.S.A. warrants to  
you, the ORIGINAL PURCHASER and ANY SUB-  
SEQUENT OWNER of each NEW Crown1 product,  
for a period of three (3) years from the date of pur-  
chase by the original purchaser (the “warranty  
period”) that the new Crown product is free of  
defects in materials and workmanship, and we  
further warrant the new Crown product regardless  
of the reason for failure, except as excluded in this  
Warranty.  
We will remedy any defect, regardless of the rea-  
son for failure (except as excluded), by repair,  
replacement, or refund. We may not elect refund  
unless you agree, or unless we are unable to pro-  
vide replacement, and repair is not practical or  
cannot be timely made. If a refund is elected, then  
you must make the defective or malfunctioning  
product available to us free and clear of all liens  
or other encumbrances. The refund will be equal  
to the actual purchase price, not including inter-  
est, insurance, closing costs, and other finance  
charges less a reasonable depreciation on the  
product from the date of original purchase. War-  
ranty work can only be performed at our autho-  
rized service centers. We will remedy the defect  
and ship the product from the service center  
within a reasonable time after receipt of the defec-  
tive product at our authorized service center.  
YOU ARE NOT ENTITLED TO RECOVER FROM US  
ANY INCIDENTAL DAMAGES RESULTING FROM  
ANY DEFECT IN THE NEW CROWN PRODUCT.  
THIS INCLUDES ANY DAMAGE TO ANOTHER  
PRODUCT OR PRODUCTS RESULTING FROM  
SUCH A DEFECT.  
WARRANTY ALTERATIONS  
No person has the authority to enlarge, amend, or  
modify this Crown Warranty. This Crown Warranty  
is not extended by the length of time which you are  
deprived of the use of the new Crown product.  
Repairs and replacement parts provided under the  
terms of this Crown Warranty shall carry only the  
unexpired portion of this Crown Warranty.  
1
Note: If your unit bears the name “Amcron,” please substitute it  
for the name “Crown” in this warranty.  
ITEMS EXCLUDED FROM THIS CROWN-  
WARRANTY  
This Crown Warranty is in effect only for failure of  
a new Crown product which occurred within the  
Warranty Period. It does not cover any product  
which has been damaged because of any inten-  
tional misuse, accident, negligence, or loss which  
is covered under any of your insurance contracts.  
This Crown Warranty also does not extend to the  
new Crown product if the serial number has been  
defaced, altered, or removed.  
DESIGN CHANGES  
We reserve the right to change the design of any  
product from time to time without notice and with  
no obligation to make corresponding changes in  
products previously manufactured.  
HOW TO OBTAIN WARRANTY SERVICE  
You must notify your local Crown importer of  
your need for warranty service within the warranty  
period. All components must be shipped in the  
original box. Corrective action will be taken within  
a reasonable time of the date of receipt of the  
defective product by our authorized service center.  
If the repairs made by our authorized service cen-  
ter are not satisfactory, notify our authorized ser-  
vice center immediately.  
LEGAL REMEDIES OF PURCHASER  
No action to enforce this Crown Warranty shall be  
commenced after expiration of the warranty  
period.  
THIS STATEMENT OF WARRANTY SUPERSEDES  
ANY OTHERS CONTAINED IN THIS MANUAL FOR  
CROWN PRODUCTS.  
7/01  
page 18  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
PRODUCT REGISTRATION  
Crown International  
1718 W. Mishawaka Rd.  
Elkhart, IN 46517-9439  
Phone: 574-294-8000  
Fax: 574-294-8329  
When this form is used to register your product, it may be mailed or faxed.  
Crown International  
1718 W Mishawaka Rd  
Elkhart IN 46517  
Fax: 574-294-8329  
Please note that some information is required. Incomplete registrations will not be processed. * Indicates required information.  
OWNER'S INFORMATION - PLEASE PRINT  
* First name: ______________________ Middle initial: _____ * Last name: ________________________________  
Company: _________________________________________________________________________________  
* Mailing address: ____________________________________________________________________________  
* City: ____________________________* State: ___________________________* Zip Code: ________________  
* Country: __________________________ E-mail address: ___________________________________________  
* Phone # (include area code): ___________________________ Fax #: __________________________________  
PRODUCT INFORMATION  
* MODEL  
ie. MA3600VZ, CE1000A, PCC160  
* SERIAL #  
PURCHASE DATE  
mo/day/yr  
________________________________  
________________________________  
________________________________  
________________________________  
____________________  
____________________  
____________________  
____________________  
______ /_____ /_____  
______ /_____ /_____  
______ /_____ /_____  
______ /_____ /_____  
Product purchased from: ___________________________ City: __________________ State: ___________  
Comments: ____________________________________________________________________________________  
_____________________________________________________________________________________________  
_____________________________________________________________________________________________  
Operation Manual  
page 19  
 
Commercial Audio Series Mixer-Amplifiers  
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page 20  
Operation Manual  
 
Commercial Audio Series Mixer-Amplifiers  
Crown Audio Factory Service Information  
Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517  
PLEASE PRINT CLEARLY  
SRA #: __________________(If sending product to Crown factory service.)  
Model: _________________________________  
Serial Number: _____________________  
Purchase Date: ________________  
PRODUCT RETURN INFORMATION  
Individual or Business Name:  
___________________________________________________________________________________________________________________________________________________________________________  
Phone #: __________________________________________________  
_________________________________________________________  
Fax #: ________________________________________  
E-Mail:  
Street Address (please, no P.O. Boxes):  
___________________________________________________________________________________________________________________________________________________________________________  
City: __________________________________________  
Nature of problem:  
State/Prov: ________________________________  
Postal Code: _________________  
Country: _____________________  
___________________________________________________________________________________________________________________________________________________________________________  
___________________________________________________________________________________________________________________________________________________________________________  
___________________________________________________________________________________________________________________________________________________________________________  
Other equipment in your system:  
___________________________________________________________________________________________________________________________________________________________________________  
If warranty is expired, pleae provide method of payment. Proof of purchase may be required to validate warranty.  
PAYMENT OPTIONS  
I have open account payment terms. Purchase order required. PO#____________________________________________________  
COD  
Credit Card (Information below is required; however if you do not want to provide this information at this time, we will contact you for the information when your unit is repaired).  
Credit card information:  
Type of credit card:  
Master Card  
Visa  
American Express  
Discover  
Type of credit card account:  
Personal/Consumer  
Business/Corporate  
Card # ______________________________________________ Exp. date: _____________ * Card ID #: __________________________  
* Card ID # is located on the back of the card following the credit card #, in the signature area. On American Express, it may be located on the front of the card. This number is required to process the charge to your account. If you do not want  
to provide it at this time, we will call you to obtain this number when the repair of your unit is complete.  
Name on credit card:  
____________________________________________________________________________  
Billing address of credit card: __________________________________________________________________________  
__________________________________________________________________________  
__________________________________________________________________________  
Operation Manual  
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