Burst ADA-4U, ADA-4B Users Guide

ADA-4U,

ADA-4B

Four Output Audio
Distribution Amplifiers

Manual Version 3.01

BURST ELECTRONICS INC
ALBUQUERQUE, NM 87109 USA
[phone] VOICE

Made in USA

[phone] TECH SUPPORT
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www.burstelectronics.com

Hardware, software and manual copyright by Burst Electronics. All rights reserved. No part
of this publication may be reproduced or distributed in any form or by any means without the
written permission of Burst Electronics.

Audio Distribution Amplifier

Congratulations on your purchase of the Burst
Electronics Model ADA-4B or Model ADA-4U.
The ADA-4B is a balanced stereo audio amplifier.
The ADA-4U is an unbalanced stereo audio
amplifier. These units use the latest in high
speed, monolithic operational amplifier
technology. This results in wide bandwidth, low
noise and low distortion. All units contain internal
regulated bipolar power supplies and are
powered by external 12 Vdc, perfect for field or
studio applications. Each of the four outputs is a
separate buffer amplifier resulting in a high
degree of isolation between outputs.

ADA-4U
The ADA-4U is a stereo unbalanced four (4)
output audio amplifier. This product will take a
Left and Right channel input and distribute the
audio to four (4) Left and Right channel outputs.
This product uses RCA jacks for quick
connections to your audio devices. Each of the
four L/R channels is separately buffered, this
makes for a high degree of isolation between the
other outputs.

ADA4 Audio Distribution Amplifier 2

ADA-4B
The ADA-4B is a stereo balanced four (4) output
audio distribution amplifier. Left and Right audio
gain is separately controlled from the front panel
adjustment knobs. Each output, L and R, uses
three (3) screw terminal connectors, Positive (+),
Negative (-) and Ground (G). The four L/R
channels are separately buffered, this makes for
a high degree of isolation between the other
outputs.

Specifications

Input Impedance: 100k Ohms
Output Impedance: 51 Ohms
Gain ADA-4U: Unity
Gain ADA-4B: Adjustable
Bandwidth: 5 Hz to 20 kHz ±½ dB
Crosstalk: 70 dB
S/N: 91 dB
Clipping: +17 dBm
Output Protection: Open or Short,
Infinite Duration
Size: 2.2W x 1.5H x 5.5D Inches
DC Powered: 11 to 16 Vdc
Current Draw: 70mA
Wall Module: 120 VAC 60 Hz, 12 Vdc
(Included) 500mA, UL Listed
Warranty: One Year Parts and Labor

ADA4 Audio Distribution Amplifier 3

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