Table of Contents
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Table of Contents
Related Manuals for B&K ST55.2
Summary of Contents for B&K ST55.2
- Page 1 B&K IMPLY ETTER B&K Components, Ltd. ST55.2 OWNER’S MANUAL P/N13436 0702...
- Page 2 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: info@bkcomp.com Web: www.bkcomp.com...
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Page 3: Table Of Contents
TABLE OF CONTENTS Table of Contents ...iii Safety Precautions ... 1 Purpose and Function... 2 Design and Construction... 2 Features... 2 Rear Panel ... 3 Control Muting ... 4 Level Controls... 5 Inputs ... 5 Outputs ... 5 Internal Bus Structure ... 6 Jumper Description ... -
Page 4: Safety Precautions
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. -
Page 5: Purpose And Function
PURPOSE AND FUNCTION The ST55.2 is a compact, very efficient, two channel power amplifier. It is designed for use in all types of audio or audio/video systems. The term versatile is almost adequate to describe the variance of operational modes the ST55.2 is capable of providing. -
Page 6: Rear Panel
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 R I S K O F E L E C T R I C S H O C K B&K D O N O T O P E N D O N O T O P E N... -
Page 7: 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 controlled, the control signal can be extended to include each successive unit by simply running an RCA type audio cable from the CTRL OUT connector of the first amplifier to the CTRL IN connector of the next unit (commonly referred to as ‘daisy chaining’). -
Page 8: 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 speaker. This is a rough adjustment for matching different driver impedances. -
Page 9: Internal Bus Structure
The jumper modules may be seen on the circuit board just behind the level controls. Below is the default setup for the ST55.2 amplifier. By arranging the jumpers allows you to configure the amplifier for different applications. If you wish to use the amplifier as a stereo (two channel) amplifier, you need not change any of the settings. -
Page 10: Jumper Description
MONO APPLICATION (MEDIUM CURRENT) The ST55.2’s two output channels may be paralleled (mono) to combine the left and right channels output current. This feature allows the amplifier to double its apparent output current. To use, place the source group jumper for both channels on the ‘L BUS’... -
Page 11: Bridged Application (High Voltage)
BRIDGED APPLICATION (HIGH VOLTAGE) The ST55.2 may be bridged to drive a high impedance speaker. To use, place the source group jumper for both channels on the ‘L BUS’ jumper terminal. Place the volume group jumper for both channels on the ‘NO VOL’... -
Page 12: 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. Make a diagram of your proposed system by laying out the relative location of each component in the system. -
Page 13: Troubleshooting
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE No sound (‘on’ LED 1. Power cord not plugged in. not illuminated) 2. Power off at AC source. 3. AC power inlet fuse blown or faulty 4. Control Input not activated. No sound on some 1. Speaker leads loose or faulty or all selected 2. -
Page 14: Specifications
Power Rating: 8 ohms 4 ohms THD (S+N) Frequency response Input sensitivity Input impedance Damping factor Current (peak to peak) Slew rate Dynamic headroom S/N (A-weighted) Voltage gain Line voltage Dimensions (O.A.) Weight Power consumption Replacement fuses SPECIFICATIONS 55 watts @ 1 kHz Not recommended 0.09 % @ 1 kHz 5 Hz –... -
Page 15: Limited Warranty
B & K Components Ltd., referred to herein as B & K, warrants your B & K equipment against all defects in material and workmanship for a period of five years from the date of purchase. This warranty applies only to the original purchaser and only to equipment in normal residential use and service. -
Page 16: Www.bkcomp.com
WWW.BKCOMP.COM B&K Components, Ltd. 2100 Old Union Road Buffalo, New York 14227 Phone: 716 – 656 - 0026...