Instruction/ maintenance manual of the product 125.7 S2 B&K
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B & K Component s, Lt d. User Manual R EFERENCE 125.5 S2 R EFERENCE 125.7 S2 Five or Seven Channel Amplifier 13740 0604.
USER MANUAL - R EFERENCE 125.5 S2, R EFERENCE 125.7 S2 © 2004 B & K Components Lt d. All rights reserved. The information in this manual is copyright protected. No part of this manual may be copied or reproduced in any form without prior written consent from B & K Components, Lt d.
T ABLE OF CONTENTS ACCESSORIES AND LIMITED W ARRANTY ii T ABLE OF CONTENTS 1 SAFETY PRECAUTIONS 2 PURPOSE AND FUNCTION 3 BACK P ANEL 4 INPUTS 5 INPUT/OUTPUT CONNECTIONS 6 SYSTEM INST ALLA TION 7 CONTR.
W ARNING: to prevent fire or shock hazard, do not expose this unit to rain or moisture. Care should be t aken to prevent objects or liquid from entering the enclosure.
PURPOSE AND FUNCTION PURPOSE AND FUNCTION The Reference 125.5 S2 (Five channel) or Reference 125.7 S2 (Seven channel) is a high power amplifier that is designed for use in all types of audio or audio/video systems. DESIGN AND CONSTRUCTION The Reference 125.
BACK P ANEL F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U S E F U .
INPUTS INPUTS The Reference 125.5 S2 or Reference 125.7 S2 allows signal patch cables (interconnect s) to be sourced from either balanced or unbalanced preamplifier/processor outputs. A switch is used to configure a P AIR of AMPLIFIER CHANNELS for use with either balanced (XLR) or unbalanced (RCA) outputs.
INPUT/OUTPUT CONNECTIONS Use either RCA unbalanced or XLR balanced to connect the preamplifier to amplifier . INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 XLR (BALANCED) RCA (UNBALANCED) XL.
SYSTEM INST ALLA TION There will most likely be a number of cables involved in the installation of your home entert ainment system. Preplanning is essential in order to maximize system efficiency . We recommend the following as a means of helping you reach that goal.
CONTROL TRIGGERS A control (trigger) system is provided on the Reference 125.5 S2 or Reference 125.7 S2 amplifiers to allow remote switching of the amplifier's standby on/of f feature. The control input is designed to operate with a source (trigger) of 5-24 volts DC.
TROUBLESHOOTING ***Note: If unit continues to blow power fuses, DO NOT USE A HIGHER RA TED FUSE, please con- tact customer service to have the unit serviced. When servicing fuses always disconnect AC power before replacing. CARE AND CLEANING Under normal use, the amplifier will not require any special care.
R EFERENCE 125.5 S2 & R EFERENCE 125.7 S2 *A V - Amplified V oltage Power Rating: 8 Ω 125.5 / 125.7 Power Rating: 4 Ω 125.5 / 125.7 125 watts / 125 watts 185 watts / 185 watts Number of Channels 5 / 7 Current (peak to peak) 30 Amps / 30 amps Dynamic Headroom 1.
An important point after buying a device B&K 125.7 S2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought B&K 125.7 S2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data B&K 125.7 S2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, B&K 125.7 S2 you will learn all the available features of the product, as well as information on its operation. The information that you get B&K 125.7 S2 will certainly help you make a decision on the purchase.
If you already are a holder of B&K 125.7 S2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime B&K 125.7 S2.
However, one of the most important roles played by the user manual is to help in solving problems with B&K 125.7 S2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device B&K 125.7 S2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
