User Manual
REFERENCE AMPLIFIER A500
Professional 600-Watt Reference-Class Studio Power Amplifier
3
REFERENCE AMPLIFIER A500 User Manual
9. Do not defeat the safety purpose of the polarized
or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding-type plug
has two blades and a third grounding prong. The wide
UNDERTAKING OR REPRESENTATION. THIS MANUAL
IS COPYRIGHTED. NO PART OF THIS MANUAL MAY
BE REPRODUCED OR TRANSMITTED IN ANY FORM
OR BY ANY MEANS, ELECTRONIC OR MECHANICAL,
Important Safety
Instructions
blade or the third prong are provided for your safety. If the INCLUDING PHOTOCOPYING AND RECORDING OF ANY
provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
KIND, FOR ANY PURPOSE, WITHOUT THE EXPRESS
WRITTEN PERMISSION OF MUSIC GROUP IP LTD.
10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
ALL RIGHTS RESERVED.
© 2012 MUSIC Group IP Ltd.
Trident Chambers, Wickhams Cay, P.O. Box 146,
Road Town, Tortola, British Virgin Islands
Terminals marked with this symbol carry
electrical current of sufficient magnitude
to constitute risk of electric shock.
11. Use only attachments/accessories specified by
the manufacturer.
Use only high-quality professional speaker cables with
¼" TS or twist-locking plugs pre-installed. All other
installation or modification should be performed only
by qualified personnel.
12. Use only with the
cart, stand, tripod, bracket,
or table specified by the
LIMITED WARRANTY
§ 1 Warranty
manufacturer, or sold with (1) This limited warranty is valid only if you purchased
the apparatus. When a cart the product from a MUSIC Group Authorized Reseller in
This symbol, wherever it appears,
alerts you to the presence of uninsulated
dangerous voltage inside the
is used, use caution when
the country of purchase. A list of authorized resellers can
moving the cart/apparatus be found on BEHRINGER’s website behringer.com under
enclosure - voltage that may be sufficient to constitute a
risk of shock.
combination to avoid
“Where to Buy”, or you can contact the MUSIC Group office
closest to you.
injury from tip-over.
This symbol, wherever it appears,
alerts you to important operating and
maintenance instructions in the
13. Unplug this apparatus during lightning storms or
(2) MUSIC Group* warrants the mechanical and
when unused for long periods of time.
electronic components of this product to be free of defects
in material and workmanship if used under normal
operating conditions for a period of one (1) year from
the original date of purchase (see the Limited Warranty
terms in § 4 below), unless a longer minimum warranty
period is mandated by applicable local laws. If the product
shows any defects within the specified warranty period
and that defect is not excluded under § 4, MUSIC Group
shall, at its discretion, either replace or repair the product
using suitable new or reconditioned product or parts.
In case MUSIC Group decides to replace the entire product,
this limited warranty shall apply to the replacement
product for the remaining initial warranty period, i.e.,
one (1) year (or otherwise applicable minimum warranty
period) from the date of purchase of the original product.
14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power supply cord or plug
is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed
to rain or moisture, does not operate normally, or has
been dropped.
accompanying literature. Please read the manual.
Caution
To reduce the risk of electric shock, do not
remove the top cover (or the rear section).
No user serviceable parts inside. Refer servicing to
qualified personnel.
Caution
To reduce the risk of fire or electric shock,
do not expose this appliance to rain and
15. The apparatus shall be connected to a MAINS socket
outlet with a protective earthing connection.
16. Where the MAINS plug or an appliance coupler is
used as the disconnect device, the disconnect device shall
remain readily operable.
moisture. The apparatus shall not be exposed to dripping
or splashing liquids and no objects filled with liquids,
such as vases, shall be placed on the apparatus.
Caution
These service instructions are for use
by qualified service personnel only.
(3) Upon validation of the warranty claim, the repaired
or replacement product will be returned to the user
freight prepaid by MUSIC Group.
To reduce the risk of electric shock do not perform any
servicing other than that contained in the operation
instructions. Repairs have to be performed by qualified
service personnel.
(4) Warranty claims other than those indicated above
are expressly excluded.
PLEASE RETAIN YOUR SALES RECEIPT. IT IS YOUR PROOF
OF PURCHASE COVERING YOUR LIMITED WARRANTY.
THIS LIMITED WARRANTY IS VOID WITHOUT SUCH PROOF
OF PURCHASE.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
LEGAL DISCLAIMER
TECHNICAL SPECIFICATIONS AND APPEARANCES
ARE SUBJECT TO CHANGE WITHOUT NOTICE AND
ACCURACY IS NOT GUARANTEED. BEHRINGER IS
PART OF THE MUSIC GROUP (MUSIC-GROUP.COM).
ALL TRADEMARKS ARE THE PROPERTY OF THEIR
RESPECTIVE OWNERS. MUSIC GROUP ACCEPTS NO
LIABILITY FOR ANY LOSS WHICH MAY BE SUFFERED
BY ANY PERSON WHO RELIES EITHER WHOLLY OR
IN PART UPON ANY DESCRIPTION, PHOTOGRAPH
OR STATEMENT CONTAINED HEREIN. COLORS AND
SPECIFICATIONS MAY VARY FROM ACTUAL PRODUCT.
MUSIC GROUP PRODUCTS ARE SOLD THROUGH
AUTHORIZED FULLFILLERS AND RESELLERS ONLY.
FULLFILLERS AND RESELLERS ARE NOT AGENTS OF
MUSIC GROUP AND HAVE ABSOLUTELY NO AUTHORITY
TO BIND MUSIC GROUP BY ANY EXPRESS OR IMPLIED
§ 2 Online registration
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
Please do remember to register your new BEHRINGER
equipment right after your purchase at behringer.com
under“Support”and kindly read the terms and conditions
of our limited warranty carefully. Registering your
purchase and equipment with us helps us process
your repair claims quicker and more efficiently.
Thank you for your cooperation!
7. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as
radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
§ 3 Return materials authorization
(1) To obtain warranty service, please contact the
retailer from whom the equipment was purchased.
Should your MUSIC Group Authorized Reseller not be
located in your vicinity, you may contact the MUSIC Group
Authorized Fulfiller for your country listed under
4
REFERENCE AMPLIFIER A500 User Manual
“Support”at behringer.com. If your country is not
listed, please check if your problem can be dealt with
by our“Online Support”which may also be found under
“Support”at behringer.com. Alternatively, please submit
an online warranty claim at behringer.com BEFORE
returning the product. All inquiries must be accompanied
by a description of the problem and the serial number
of the product. After verifying the product’s warranty
eligibility with the original sales receipt, MUSIC Group
will then issue a Return Materials Authorization
(“RMA”) number.
•
•
connection or operation of the unit in any way
that does not comply with the technical or safety
regulations applicable in the country where the
product is used;
(3) This warranty does not detract from the seller’s
obligations in regard to any lack of conformity of the
product and any hidden defect.
§ 9 Amendment
damage/defects caused by acts of God/Nature
(accident, fire, flood, etc) or any other condition that
is beyond the control of MUSIC Group.
Warranty service conditions are subject to change without
notice. For the latest warranty terms and conditions
and additional information regarding MUSIC Group’s
limited warranty, please see complete details online at
behringer.com.
(7) Any repair or opening of the unit carried out by
unauthorized personnel (user included) will void the
limited warranty.
* MUSIC Group Macao Commercial Offshore Limited of
Rue de Pequim No. 202-A, Macau Finance Centre 9/J, Macau,
including all MUSIC Group companies
(8) If an inspection of the product by MUSIC Group
shows that the defect in question is not covered by the
limited warranty, the inspection costs are payable by
the customer.
(2) Subsequently, the product must be returned in
its original shipping carton, together with the return
authorization number to the address indicated by
MUSIC Group.
(9) Products which do not meet the terms of this
limited warranty will be repaired exclusively at the buyer’s
expense. MUSIC Group or its authorized service center will
inform the buyer of any such circumstance. If the buyer
fails to submit a written repair order within 6 weeks after
notification, MUSIC Group will return the unit C.O.D. with
a separate invoice for freight and packing. Such costs will
also be invoiced separately when the buyer has sent in a
written repair order.
(3) Shipments without freight prepaid will not
be accepted.
§ 4 Warranty Exclusions
(1) This limited warranty does not cover consumable
parts including, but not limited to, fuses and batteries.
Where applicable, MUSIC Group warrants the valves or
meters contained in the product to be free from defects
in material and workmanship for a period of ninety (90)
days from date of purchase.
(10) MUSIC Group Authorized Resellers do not sell new
products directly in online auctions. Purchases made
through an online auction are on a“buyer beware”basis.
Online auction confirmations or sales receipts are not
accepted for warranty verification and MUSIC Group will
not repair or replace any product purchased through an
online auction.
(2) This limited warranty does not cover the product
if it has been electronically or mechanically modified
in any way. If the product needs to be modified or
adapted in order to comply with applicable technical
or safety standards on a national or local level, in any
country which is not the country for which the
product was originally developed and manufactured,
this modification/adaptation shall not be considered a
defect in materials or workmanship. This limited warranty
does not cover any such modification/adaptation,
regardless of whether it was carried out properly or not.
Under the terms of this limited warranty, MUSIC Group
shall not be held responsible for any cost resulting from
such a modification/adaptation.
§ 5 Warranty transferability
This limited warranty is extended exclusively to the
original buyer (customer of authorized reseller) and is
not transferable to anyone who may subsequently
purchase this product. No other person (reseller, etc.)
shall be entitled to give any warranty promise on behalf
of MUSIC Group.
(3) This limited warranty covers only the product
hardware. It does not cover technical assistance for
hardware or software usage and it does not cover
any software products whether or not contained in
the product. Any such software is provided“AS IS”
unless expressly provided for in any enclosed software
limited warranty.
§ 6 Claim for damage
Subject only to the operation of mandatory applicable
local laws, MUSIC Group shall have no liability to the buyer
under this warranty for any consequential or indirect
loss or damage of any kind. In no event shall the liability
of MUSIC Group under this limited warranty exceed the
invoiced value of the product.
(4) This limited warranty is invalid if the
factory-applied serial number has been altered or
removed from the product.
§ 7 Limitation of liability
This limited warranty is the complete and exclusive
warranty between you and MUSIC Group. It supersedes
all other written or oral communications related to this
product. MUSIC Group provides no other warranties for
this product.
(5) Free inspections and maintenance/repair work
are expressly excluded from this limited warranty,
in particular, if caused by improper handling of the
product by the user. This also applies to defects caused
by normal wear and tear, in particular, of faders,
crossfaders, potentiometers, keys/buttons, guitar strings,
illuminants and similar parts.
§ 8 Other warranty rights and
national law
(1) This limited warranty does not exclude or limit the
buyer’s statutory rights as a consumer in any way.
(6) Damage/defects caused by the following conditions
are not covered by this limited warranty:
(2) The limited warranty regulations mentioned herein
are applicable unless they constitute an infringement of
applicable mandatory local laws.
•
improper handling, neglect or failure to operate the
unit in compliance with the instructions given in
BEHRINGER user or service manuals;
5
REFERENCE AMPLIFIER A500 User Manual
1. Introduction
Power is delivered via the cable enclosed with the unit. All required safety
precautions have been adhered to.
The A500 features special circuitry that protects your speakers from transients
during start-up and your amp from overheating. The amp is not put at any risk
even if there is a short on its outputs.
◊
Please keep in mind that all your equipment has to be grounded
at all times. For your own protection, never change or disable the
grounding on your equipment or on the cables! The unit should
always be connected to the mains socket outlet with a protective
earthing connection.
Various operating modes, such as parallel and mono mode, open up different
possibilities for effective implementation with the rest of your audio equipment,
leaving little to be desired.
Balanced inputs and outputs
Your BEHRINGER A500 features electronically servo-balanced inputs
(exception: RCA connectors (6)and (7)are intended only for unbalanced
connections). The automatic servo function recognizes when unbalanced
jacks are connected and internally adjusts the nominal signal level so that no
difference in the signal level between inputs and outputs exists (6 dB correction).
!!
Attention!
◊
High volume levels can damage your hearing and your speakers.
Please turn down both volume controls to the minimum (all the way
to the left) before you power up the amp. Always make sure you use
appropriate volume levels.
◊
This manual first describes the terminology used, so that you fully
understand the A500 and its functions. Please read the manual
carefully and keep it for future reference.
1.1.3 Online registration
Online registration
1.1 Before you get started
Please register your new BEHRINGER equipment right after your purchase
warranty carefully.
1.1.1 Shipment
Your A500 was carefully packed at the factory, and the packaging was designed
to protect the unit from rough handling. Nevertheless, we recommend that
you carefully examine the packaging and its contents for any signs of physical
damage that may have occurred during transit.
Should your BEHRINGER product malfunction, it is our intention to have it
repaired as quickly as possible. To arrange for warranty service, please contact
the BEHRINGER retailer from whom the equipment was purchased. Should
your BEHRINGER dealer not be located in your vicinity, you may directly contact
one of our subsidiaries. Corresponding contact information is included in the
original equipment packaging (Global Contact Information/European Contact
Information). Should your country not be listed, please contact the distributor
nearest you. A list of distributors can be found in the support area of our website
◊
If the unit is damaged, please do NOT return it to BEHRINGER.
Instead, notify your dealer and the shipping company immediately.
Otherwise, claims for damage or replacement may not be honored.
◊
◊
◊
Always use the original packaging to prevent damage during storage
or transport.
Registering your purchase and equipment with us helps us process your repair
claims more quickly and efficiently.
Make sure that no children are left unsupervised with the A500 or
its packaging.
Thank you for your cooperation!
Please ensure proper disposal of all packing materials.
1.1.2 Initial operation
Make sure there is enough space around the unit for cooling. To avoid
overheating, please do not place your amplifier near radiators and other
equipment emitting heat.
◊
Before plugging the unit into a power socket, please make sure you
have selected the correct voltage!
The fuse compartment near the power plug socket contains three triangular
markings. Two of these triangles are opposite one another. The voltage
indicated adjacent to these markings is the voltage to which your unit
has been set up, and can be altered by rotating the fuse compartment by
180°. ATTENTION: This does not apply to export models that were
manufactured only for use with 120 V, for example!
◊
If you alter the unit’s voltage, you must change the fuse accordingly.
The correct value of the fuse needed can be found in the
chapter “SPECIFICATIONS.”
◊
Faulty fuses must be replaced with fuses of appropriate rating
only! The correct value of the fuses needed can be found in the
chapter “SPECIFICATIONS.”
6
REFERENCE AMPLIFIER A500 User Manual
2. Control Elements
2.1 The front
(2)
(3) (4) (5)
(1)
Fig. 2.1: Control elements in the front
(1) The POWER switch is used to power up the A500. The POWER switch should
(3) The PROT LED lights up whenever the protective circuitry mutes the speaker
always be in its “Off” position when you connect the unit to the mains.
output. Please turn your A500 off immediately whenever this LED is lit.
POWER LED lights up as soon as you power up the A500.
◊
The protective circuitry is activated if the amp gets too hot. Let your
A500 cool down a little before you turn it on again. Besides, check if the
heat sink has enough space around it to perform its job.
◊
◊
Please note: Merely switching the unit off does not mean that it
is fully disconnected from the mains. When not using the unit for
prolonged periods of time, please unplug the unit’s power cord from
the power outlet.
(4) The high-precision power indicator gives out current signal strength.
(5) The CLIP LED lights up when the signal is distorted. Should distortion occur,
Your power amp should always be the last device you power up, since
some equipment in the signal path creates strong impulses which
are then amplified in the amp and are passed onto the loudspeakers,
possibly damaging them. Consequently, always let your power amp be
the first device you power down.
reduce the input level, so that the CLIP LED no longer lights up.
◊
If the CLIP LED remains being lit, check the cable connection to the
speakers because there might be a short on the speaker output.
(2) Each channel features a volume control. Use it to adjust gain on your A500.
Both volume controls should be turned all the way to the left whenever
you power the unit up or down. If an active signal is present on the input,
turning the volume down will protect your speakers and your ears from
unwanted “pops” or transients.
2.2 The back
(7)
(9) (10)
(11) (12)
(6)
(8)
(13)
Fig. 2.2: Control elements and connections in the back
7
REFERENCE AMPLIFIER A500 User Manual
(6) CHANNEL INPUT 1 (MONO). Connect the signal source whose output needs 3. Application Examples
to be amplified.
3.1 Stereo mode
◊
Please use only one of the three input connectors per channel at any
one time!
In this mode, both channels run independently with a separate input signal.
Connect passive loudspeakers, preferably high-quality studio monitors, such
as the BEHRINGER TRUTH B2031P. Set the STEREO/BRIDGED MONO switch (8)]to
“STEREO” to enable stereo mode.
Here you will connect an output of your mixing console, your HiFi preamp or
another signal source.
Our rack mixing console EURORACK PRO RX1602, with its eight mono-usable
balanced stereo channels, is an ideal choice for signal processing and
source selection.
◊
Please use the POWER switch to power down your A500 before making
any changes to the operating mode settings.
◊
Keep in mind the minimum load impedance of 4 Ohms per channel in
stereo mode.
The connections for both channels are laid out as RCA, XLR and ¼" TRS stereo
connectors. The cinch inputs are intended for use with outputs laid out as
unbalanced signals with a -10 dBV line signal level. Because these inputs
are more sensitive than others, you can directly connect a CD player or a
DAT recorder. Of course this input can also be used for connecting mixing
consoles and similar equipment.
XENYX 2222FX
The XLR and ¼" TRS stereo connectors are laid out balanced, but they too can
of course be used to connect unbalanced signals. Their sensitivity is +4 dBu
(also see ch. 4).
R
Ctrl. Room out
L
Generally speaking, you should choose balanced over unbalanced signals in
order to guarantee the highest noise protection.
Due to safety considerations, the inputs can not be used in parallel.
However, if you are using cinch and XLR or ¼" TRS connectors
simultaneously, the cinch input is given preference, and the other signal
is muted.
Input
Channel 1
REFERENCE AMPLIFIER A500
◊
If you wish to use the A500 in mono-bridged mode,
please only use one of the channel 1 inputs!
Input
Channel 2
(7) CHANNEL INPUT 2. These are the inputs for channel 2.
(8) The STEREO/BRIDGED MONO switch is used to toggle between the two
operating modes of your A500.
◊
Please power the A500 down using the POWER switch each time you
change the operating mode. Similarly, only connect/disconnect speaker
connectors if the A500 has first been powered off!
TRUTH B2031P
(9) OUTPUT 1, OUTPUT 2 and BRIDGED MONO: These are the speaker
connectors of your A500 laid out as ¼" TS mono connectors. When in
mono-bridged mode, only use the BRIDGED MONO output.
Fig. 3.1: A500 in stereo operation
Additional examples:
◊
Keep in mind the minimum power impedance of 4 Ohms per channel
in stereo mode. When in mono-bridged mode, a loudspeaker whose
impedance is at least 8 Ohms must be used.
•
•
Two independent mono signals, e.g. instrument signal and monitor mix
Bi-amp operation, with the bass signal on channel 1 and the treble signal
on channel 2
(10) In addition to XLR or ¼" TRS connectors, you can also use binding posts for
connecting speaker cables. When in mono-bridged mode, make sure to
connect your cables to both middle connectors–as shown on the unit itself.
(11) FUSE SWITCH/VOLTAGE SELECTION. Before connecting the unit to the
mains, please check if the voltage selector corresponds to your local voltage.
When replacing fuses, you should only use fuses of the same type and rating.
With some units, the fuse switch can be put into two different positions in
order to select between 230 V and 120 V operation. Please bear in mind:
If you wish to use your equipment outside of Europe running on 120 V,
you will have to use a fuse with a higher Ampere value.
(12) The mains connection is made via a standard IEC RECEPTACLE. A matching
cable is enclosed.
(13) SERIAL NUMBER.
8
REFERENCE AMPLIFIER A500 User Manual
3.2 Mono-bridged mode
4. Installation
In this mode, the voltages of both channels are added up and routed to just
one loudspeaker. This results in a doubling of voltage, quadrupling of the peak
power value and roughly trippling of the continuous power output on a single
channel. The input and the gain control on channel 1 are used in mono-bridged
mode. Thechannel 2 control elements are not used. ATTENTION: To avoid
cancellations due to internal phase inversion, the GAIN control on
channel 2 must be turned all the way to the left!
4.1 Installation in a rack
Your A500 can be installed into a 19" rack and requires
two rack spaces. Please use four attaching screws and washers for installation.
Reinforce the back end, especially for on-the-road use. Please ensure that
enough cool air reaches the rack, especially if other rack equipment generates
a lot of heat. Due to its weight, we recommend installing the A500 in the lower
portion of your rack. If you are installing several amps in a single rack, you should
leave some space between individual amps (approx. 1 height unit) to allow for
sufficient cooling.
Use this operating mode to feed the output of both channels into a single 4-Ohm
load. Set the STEREO/BRIDGED MONO switch (8)to “BRIDGED MONO.”
Please only connect the speaker using the BRIDGED MONO connector (9)or by
using both of the middle binding posts(10).
◊
The A500 has massive heat sinks on its side frame that guarantee
reliable operation. Never block air supply to these heat sinks because
excessive heat may damage the components inside your amp.
Even though the protective circuitry guards the inside components
from damage caused by excessive internal temperatures, you should
still double-check where the amp is placed and inspect cable
connections if you are experiencing thermal protection dropouts.
◊
◊
Always power the A500 down using the POWER switch whenever you
make any changes to the operating mode settings.
Keep in mind the minimum load impedance of 8 Ohms in
mono-bridged mode.
4.2 Connections
Bass
Inputs
If you wish to use XLR connections for unbalanced input signals, connect the
unused pin on the XLR connector (pin 3) with the ground. No modification is
needed if using mono jacks (also see ch. 4.3).
BASS V-AMP PRO
◊
Should you register distractive signals such as noise or hissing,
we recommend separating the amp input from the signal source.
This way, you can quickly determine if the noise originates
in the equipment connected to the amp. Always make sure
to completely lower amplification of both channels before
powering up the amp (GAIN control turned all the way to the left).
Otherwise, permanent damage to your speakers may occur.
Input
Channel 1
REFERENCE AMPLIFIER A500
Outputs
Your A500 offers several output connection possibilities: two ¼" TS mono
connectors and two pairs of touch-safe binding posts. In addition to both
¼" TS mono connectors for individual channels, the A500 also features an extra
¼" connector for use in mono-bridged mode.
BB410
◊
Whenever possible, use thick and short speaker cables to minimize
power losses. Never route output cables near input cables.
Fig. 3.2: Mono-bridged operation
When using binding posts, make sure that the wire insulation is not stripped
more than what is necessary, and that wires are completely inserted into the
binding post so that no bare wire is visible. Cable clamps must be isolated to
avoid the possibility of electric shock. When running the amp in mono-bridged
mode, always use the middle two binding post connectors, paying attention to
correct polarity.
◊
If your amp is overdriving for a longer period of time, it may become
muted for several seconds at a time. Always select appropriate volume
values to avoid overdriving.
Safety precautionsv for mono-bridged operation
◊
ATTENTION! If you notice bare cable endings on the binding post
connectors, disconnect the AC mains and remedy the improper output
connection before powering the amplifier on again.
A voltage of up to 60 V RMS is present between the output connectors of the
A500. Always adhere to all appropriate safety precautions when connecting your
speakers to avoid the risk of electric shock.
Running your amp in mono-bridged mode puts both the amp and your
loudspeakers under additional strain. Excessive overdriving can result in
premature shutting down of the unit itself or permanent damage to the speakers.
Make sure that your speaker (impedance at least 8 Ohms) and the cables you use
can indeed handle the power load fed into/through them.
Connecting to the mains
Always connect your power amplifier to the voltage specified on the rear of
the unit. Connecting the amp to incorrect voltage can permanently damage it
(also see ch. 2, under [11] FUSE SWITCH/VOLTAGE SELECTION).
Before powering up the amplifier, double-check all connections and fully lower
the gain settings.
9
REFERENCE AMPLIFIER A500 User Manual
4.3 Audio connections
Various cables are needed for different types of applications. The following
illustrations show the correct wiring. Always use high-grade cables.
Fig. 4.3: ¼" TRS connector
Fig. 4.1: XLR connections
Fig. 4.4: Unbalanced connection using a cinch cable
Fig. 4.2: ¼" TS connector
10 REFERENCE AMPLIFIER A500 User Manual
5. Specifications
Output Power
Connectors
Inputs
Balanced XLR, ¼" TRS , RCA
RMS Power
Outputs
¼'' TS connectors and
Stereo Mode (both channels driven)
”touch-proof” binding posts
8 Ω / 1 kHz @ 1 % THD
4 Ω / 1 kHz @ 1 % THD
Bridged Mono
125 W
185 W
Circuit protection
Cooling
Convection-type
Short circuit and overload
Class AB
Amplifier protection
Output circuit type
8 Ω / 1 kHz @ 1 % THD
375 W
Peak Power
Power supply / Voltage (Fuses)
Stereo Mode (both channels driven)
8 Ω / 1 kHz
USA / Canada
UK / Australia
Europe
120 V~, 60 Hz (T 10 A H 250 V)
240 V~, 50 Hz (T 5 A H 250 V)
230 V~, 50 Hz (T 5 A H 250 V)
100 V~, 50-60 Hz (T 10 A H 250 V)
660 W
175 W
300 W
4 Ω / 1 kHz
Bridged Mono
Japan
8 Ω / 1 kHz
600 W
Power consumption
Mains connector
Input Sensitivity
Distortion
1.64 V
Standard IEC receptacle
<0.01 %
Frequency Response
Voltage Gain:
20 Hz - 20 kHz, +0/-1 dB
26 dB
Dimensions/weight
Dimensions (H x W x D)
482.6 x 257.5 x 101.6 mm
19 x 10.14 x 4"
Damping Factor
Input impedance
Signal-to-Noise
> 220 @ 8 Ω
10 kΩ unbalanced, 20 kΩ balanced
>10 0 dBA
Weight
19.4 Ibs / 8.8 kg
BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts,
modifications may be made from time to time to existing products without prior notice. Specifications and
appearance may differ from those listed or illustrated.
Controls
Front
POWER switch
GAIN control (channel 1 and 2)
Rear
MODE switch
Indicators
POWER
Blue LEDs
CLIP (per channel)
Red LEDs
PROT (per channel)
Yellow LEDs
Green LEDs
Yellow LEDs
SIGNAL (per channel) -30 dB ~ -6 dB
SIGNAL (per channel) -3 dB; 0 dB
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