B&K ST55.2 - Manuals - manualsarea.com

Page 2 - ii; Phone

ii B&K Components, Ltd. , 2100 Old Union Road, Buffalo New York 14227-2725 Phone 1-800-543-5252 or (716) 656-0026, Fax (716) 656-1291 E-mail: [email protected] Web: www.bkcomp.com

Page 3 - iii; TABLE OF CONTENTS

iii TABLE OF CONTENTS Table of Contents ....................................................................................................................................................iii Safety Precautions ............................................................................................

Page 4 - SAFETY PRECAUTIONS; PLEASE READ BEFORE INSTALLING

1 SAFETY PRECAUTIONS PLEASE READ BEFORE INSTALLING 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. Never handle the power cord with wet hands. • The lightning flash with arrowhead, w...

Page 6 - REAR PANEL; AC Input receptacle; Line level outputs -

3 REAR PANEL R L E V E L L L E V E L H I L O H I L O B U S I N P U T L E F T R I G H T L E F T R I G H T M O N O B U S O U T P U T WHEN SWITCH IS SET TO ENABLE , THEAMPLIFIER WILL ONLY OPERATE WHILEA 5-24VDC SIGNAL IS APPLIED TO CTRL IN WHEN SWITCH IS SET TO ENABLE , THEAMPLIFIER WILL ONLY OPERATE W...

Page 7 - CONTROL MUTING; applications as well.; Control Enable; OUT

4 CONTROL MUTING A control is provided on each ST55.2 amplifier to allow remote switching of mute on/off. The preamplifier’s control output, such as is provided with B&K series preamplifiers, can be utilized to provide a control signal to the ST55.2. If more than one amplifier is being controlle...

Page 8 - LEVEL CONTROLS; Louder; INPUTS; RCA connector; OUTPUTS

5 LEVEL CONTROLS There are two level controls on the back of the amplifier. One level control for each channel. When using the level controls, first start with them turned all the way up (clockwise). Then adjust them according to your system requirements to match the sound level coming from each spe...

Page 9 - INTERNAL BUS STRUCTURE

6 Here is a typical amplifier setup: M I N U S P L U S P L U S M I N U S R I G H T L E F T Channel 1 (-) (+) (-) (+) Channel 2 INTERNAL BUS STRUCTURE In order to gain access to the internal bus structure, you must first remove the top cover. Turn the amplifier so the rear panel is facing your. The j...

Page 10 - JUMPER DESCRIPTION; R BUS; USE VOL; Invert Jumper module -

7 M I N U S P L U S P L U S M I N U S R I G H T L E F T (-) (+) NOT U SED RB U S L+R BUS LB U S NO VOL USE VOL JUMPER DESCRIPTION The jumper modules are used in configuring each channel. Each jumper terminal location is conveniently labeled as to the source it can be configured to provide. R BUS - A...

Page 12 - not; Do not connect it to the AC power source yet!

9 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. Make a diagram of your proposed sy...

Page 13 - TROUBLESHOOTING; PROBLEM; If unit continues to blow power inlet fuses,; DO NOT USE A HIGHER RATED; please contact customer service to have the unit serviced.; CARE AND CLEANING

10 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION No sound (‘on’ LED not illuminated) 1. Power cord not plugged in. 2. Power off at AC source. 3. AC power inlet fuse blown or faulty 4. Control Input not activated. 1. Reconnect power cord. 2. Check AC switch or fuse 3. Check for shorts or o...

Page 14 - SPECIFICATIONS

11 SPECIFICATIONS Power Rating: 8 ohms 4 ohms 55 watts @ 1 kHz Not recommended THD (S+N) 0.09 % @ 1 kHz Frequency response 5 Hz – 45 kHz Input sensitivity 0.77 Volts Input impedance 33.2 k ohms Damping factor 100 Current (peak to peak) 20 Amps Slew rate 14 V / sec Dynamic headroom 1.4 dB S/N (A-weig...