Related Manuals for B&K ST1200 Series
Summary of Contents for B&K ST1200 Series
- Page 1 B & K Components Ltd. P/N 12687...
- Page 2 B&K Components, Ltd., 2100 Old Union Road, Buffalo, New York 14227...
- Page 3 Safety Precautions Purpose and function Design and construction Features Rear panel view Rear panel description Control muting Level controls Inputs Outputs Internal Bus Jumper description Mono application Bridged application System installation Making the connection Troubleshooting Care and cleaning Specifications Warranty Manual and Power cord Page 1 Page 2...
- Page 4 Turn amplifier ‘off’ when plugging in or unplugging input and speaker cables!!! The ST1200 series II is equipped with raised feet so that continuous ventilation can be maintained. They help to maintain acoustic feedback into the amplifier at a minimum.
- Page 5 The ST1200 series II is a compact, very efficient, two channel power amplifier. It is designed to be used in all types of audio or audio/video systems. The term versatile is almost adequate to describe the variance of operational modes the ST1200 series II is capable of providing.
- Page 6 - Efficient high current transformer for improved dynamics. - More accurate and three dimensional reproduction of source material. - Provides short term protection from accidental shorting of output devices and protection from thermal overload. loss and degradation. of repeatability. - Ability to reproduce demanding recordings. for extended low frequency control and improved dynamics.
- Page 7 The preamplifier’s control output, such as is provided with B&K series preamplifiers, can be utilized to provide a control signal to the ST1200 series II. If more than one amplifier is being controlled, the control signal can be extended to include...
- Page 8 If the control function is desired, each unit in the system must remain connected at all times and the control must be enabled. To enable the control function, the CTRL ENABLE button must be out for each controllable amplifier in the system. For more information on the amplifiers output status under various control conditions, refer to the table below.
- Page 9 Example: When using 4 ohm and 8 ohm speakers together, the 4 ohm may sound louder then 8 ohm at a given volume level. The level controls on the amplifier are used to match the speakers volume level. Clockwise will increase the output. Counter clockwise will decrease the output.
- Page 10 Five way binding posts are provided. One pair for each channel. They are designed to accept a banana-type plug or spade lug connector (shown below) and are color coded for easy identification. The red (+) post should always be connected to the speakers (+) jack.
- Page 11 Below is the default setup for the ST1200 series II 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 12 ‘L+R BUS’. Because it is a BUS input, any signal input here will appear at the ‘R BUS’ jumper terminal for both of the ST1200 series II’s jumper modules. Installing a jumper plug at this terminal on either of the two internal jumper modules selects the combined signal being carried by both the left and right inputs.
- Page 13 ‘L BUS’ jumper terminal. Place the volume group jumper for both channels on the ‘NO VOL’ jumper terminal. The speaker output terminals on the ST1200 series II’s rear panel must be paralleled in order to complete the setup. Simply connect the (+) terminals for both channels together using a jumper wire (not supplied with the amplifier).
- Page 14 The ST1200 series II 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’ jumper terminal. Place the jumper module on the ‘-L’...
- Page 15 There will most likely be a number of cables involved in the installation of your home entertainment system. Pre-planning 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 16 Connect the wires from your speakers to the appropriate output on the amplifier. It is absolutely essential that you observe correct polarity in these connections. Double check all connections. Plug the amplifier’s power cord into the AC power source. Turn the amplifier’s power switch ‘on’.
- Page 17 PROBLEM No sound (‘on’ LED not illuminated) No sound on some or all selected channels (‘on’ LED illuminated) Sound lacks direction, bass weak Loud hum or buzz on one or more channels Low output from amplifier Channel sounds distorted and low in output ** Note : If unit continues to blow power inlet fuses, have it serviced...
- Page 18 Power rating: 8 ohms 4 ohms Frequency response Input sensitivity THD (S+N) 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 60 watts @ 1 kHz Not recommended 5 Hz - 45 kHz 0.77 Volts...
- Page 19 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. Defective equipment must be returned to B&K, prepaid, accompanied by sufficient payment to cover the cost of return shipping and handling, and will be repaired or replaced at the discretion of B&K whose decision as to the method of reparation will be final.
- Page 20 B&K Components, Ltd. 2100 Old Union Road Buffalo, New York 14227 716-656-0023 www.bkcomp.com...