B&K Reference 125.2 Series II User Manual

Two channel amplifier

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B
K Components, Ltd.
&
User Manual
R
125.2 S2
EFERENCE
Two Channel Amplifier
13746 0604

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Table of Contents
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Summary of Contents for B&K Reference 125.2 Series II

  • Page 1 K Components, Ltd. & User Manual 125.2 S2 EFERENCE Two Channel Amplifier 13746 0604...
  • Page 2: Accessories Included

    USER MANUAL - R 125.2 EFERENCE © 2004 B & K Components Ltd. 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, Ltd. B &...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS ACCESSORIES AND LIMITED WARRANTY TABLE OF CONTENTS SAFETY PRECAUTIONS PURPOSE AND FUNCTION BACK PANEL INPUTS INPUT/OUTPUT CONNECTIONS SYSTEM INSTALLATION CONTROL TRIGGERS TROUBLESHOOTING SPECIFICATIONS Back Cover Product Information Date of Purchase: Amp Model #: Amp Serial #: Purchased From: Address: Phone #:...
  • Page 4: Safety Precautions

    SAFETY PRECAUTIONS Installation Considerations C A U T I O N R I S K O F E L E C T R I C S H O C K D O N O T O P E N WARNING: to prevent fire or shock hazard, do not expose this unit to rain or moisture. Care should be taken to prevent objects or liquid from entering the enclosure.
  • Page 5: Purpose And Function

    PURPOSE AND FUNCTION PURPOSE AND FUNCTION The Reference 125.2 S2 (Two 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 125.2 S2 amplifier utilizes high quality electronic circuitry to achieve an environment wherein a detailed, transparent, and highly musical sound can be realized.
  • Page 6: Back Panel

    BACK PANEL C O N T R O L I / O C H A N N E L 1 I N P U T C H A N N E L 2 I N P U T H i g h Pe r f o r m a n c e C T R L A u d i o / V i d e o S y s t e m s X L R ( B A L A N C E D )
  • Page 7: Inputs

    INPUTS INPUTS The Reference 125.2 S2 allows signal patch cables (interconnects) to be sourced from either balanced or unbalanced volume level preamplifier/processor outputs. A switch is used to configure a SINGLE AMPLIFIER CHANNEL for use with either a balanced (XLR) or unbalanced (RCA) output. C H A N N E L 1 I N P U T X L R ( B A L A N C E D ) R C A I N P U T...
  • Page 8: Input/Output Connections

    INPUT/OUTPUT CONNECTIONS Use either RCA unbalanced or XLR balanced to connect the preamplifier to amplifier. RCA Unbalanced Connections FRONT LEFT FRONT RIGHT C H A N N E L 1 I N P U T C H A N N E L 2 I N P U T H i g h Pe r f o r m a n c e &...
  • Page 9: System Installation

    SYSTEM INSTALLATION There will most likely be a number of cables involved in the installation of your home entertainment system. Preplanning is essential in order to maximize system efficiency. We recommend the following as a means of helping you reach that goal. •...
  • Page 10: Control Triggers

    CONTROL TRIGGERS A control (trigger) system is provided on the Reference 125.2 S2 amplifiers to allow remote switching of the amplifier's standby on/off feature. The control input is designed to operate with a source (trigger) of 5-24 volts DC. All B & K A/V processors and preamplifiers utilize control output triggers to easily integrate an amplifier into an audio system.
  • Page 11: Troubleshooting

    TROUBLESHOOTING PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION No sound 1. Power cord not plugged in. 1. Reconnect power cord. (power 'on' LED not illu- 2. Power off at AC source. 2. Check AC switch or fuse. minated). 3. AC power inlet fuse blown or 3.
  • Page 12: Specifications

    SPECIFICATIONS 125.2 S2 EFERENCE Power Rating: 8Ω 125 watts Power Rating: 4Ω 185 watts Number of Channels Current (peak to peak) 30 Amps Dynamic Headroom 1.2 dB Total Harmonic Distortion (THD) 0.09 % Signal to Noise (S/N) 95 dB Input Impedance 33.2 kΩ...

This manual is also suitable for:

Reference 125.2 s2

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