B&K ST125.1 Owner'S Manual Download | Manualshive

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WWW.BKCOMP.COM

B&K Components, Ltd.
2100 Old Union Road
Buffalo, New York 14227
Phone: 716 – 656 - 0026

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Summary of Contents for ST125.1

Page 1: ...P N13437 0702 B K S B IMPLY ETTER B K Components Ltd ST125 3 ST125 2 ST125 1 Owner s Manual ...

Page 2: ...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 info bkcomp com Web www bkcomp com ...

Page 3: ...Panel 3 Level Adjustment 4 Inputs 4 XLR Balanced 4 RCA Unbalanced 4 Balanced or Unbalanced Connections 5 Outputs 6 System Installation 7 Making the Connection 7 Control Input and Output 8 Troubleshooting 9 Care and Cleaning 9 Specifications 10 Limited Warranty 11 Returning Equipment 11 Rear Panel Enlarged Veiw 12 WWW BKCOMP COM 13 ...

Page 4: ...ace the unit is resting on We advise against removing or altering feet Do not stack anything on top of the amplifier processor source etc Leave a minimum of 2 clearance from the top of the amplifier to the next shelf or component to insure proper ventilation The amplifier should be located away from other sources that may be sensitive to heat Do not perform any internal modifications to the amplif...

Page 5: ...rolling external systems such as a projection screen or B K amplifier Control Input one 3 5 mm jack that allows standby on off with a 5 24 VDC control signal Gold Plated Connectors better sound with minimum signal loss and degradation Toroidal Transformer Efficient high current shielded transformer that supplies the amplifier with a clean and constant supply of power even during highly demanding s...

Page 6: ...ation with the speaker outputs remaining fused independently 4 Speaker Fuses for protection against amplifier damage in the case of shorted speaker wires Replace fuse with the same type and value 6 AMP T Lag On the ST125 2 channel 3 is not available On the ST125 1 mono amplifier all outputs remain fused independently 5 Balanced Input for connecting signal patch cables interconnects from the preamp...

Page 7: ...e a PAIR of AMPLIFIER CHANNELS for use with either balanced XLR or RCA unbalanced preamplifier processor line outputs INPUT 4 INPUT 5 XLR BALANCED RCA UNBALANCED INPUT 4 INPUT 5 XLR BALANCED There are up to 3 balanced input connectors on the ST125 3 ST125 2 and ST125 1 These connectors accept balanced line level output from the preamplifier s balanced output connectors PIN 1 GND PIN 2 PIN 3 PIN 1 ...

Page 8: ...ED XLR BALANCED RCA UNBALANCED RCA INPUT XLR INPUT RCA INPUT RCA INPUT XLR INPUT XLR INPUT B K S B IMPLY ETTER CHANNEL 1 INPUT CHANNEL 2 INPUT CHANNEL 3 INPUT XLR BALANCED RCA UNBALANCED XLR BALANCED RCA UNBALANCED XLR BALANCED RCA UNBALANCED RCA INPUT XLR INPUT RCA INPUT RCA INPUT XLR INPUT XLR INPUT B K S B IMPLY ETTER C R L L C R FRONT RIGHT FRONT CENTER FRONT LEFT FRONT RIGHT FRONT CENTER FRON...

Page 9: ...s be connected to the speakers jack The negative post should always be connected to the speakers jack Spade connector Banana jack Shown below is the amplifier to speaker connections Channel 1 Channel 3 CHANNEL 3 OUTPUT CHANNEL 2 OUTPUT CHANNEL 1 OUTPUT PLUS MINUS PLUS MINUS PLUS MINUS B K Components Ltd Made in the U S A www bkcomp com CHANNEL 1 OUTPUT CHANNEL 2 OUTPUT CHANNEL 3 OUTPUT F U S E FUS...

Page 10: ...it is recommended that you locate a separate AC power outlet for the amplifier one that is not shared by any other audio component in the system or any other household component This will eliminate the possibility of the amplifier modulating the power being supplied to the component and compromising the signal originating from that component Locate the AC power cord provided with the amplifier and...

Page 11: ...iew of second amplifier with control input Rear view of amplifier with control input Daisy chain to other amplifiers From preamplifier rear panel control output CONTROL I O CTRL IN CTRL OUT 12VDC 125mA CONTROL IN ALLOWS AMPLIFIER OPERATION WHEN A 5 24V SIGNAL IS APPLIED WITH A 3 5mm MINI JACK CONTROL I O CTRL IN CTRL OUT 12VDC 125mA CONTROL IN ALLOWS AMPLIFIER OPERATION WHEN A 5 24V SIGNAL IS APPL...

Page 12: ... Speakers connected out of phase 1 Check all connections making sure that cables are connected to and to Loud hum or buzz on one or more channels 1 Poor ground connection in inter connect cables 1 Check all connectors and repair as necessary Channel sounds distorted and low output 1 Blown rail fuse 1 Replace blown rail fuse inside amplifier Note If unit continues to blow power inlet fuses DO NOT U...

Page 13: ...nput impedance 33 2 k ohms Damping factor ST125 3 ST125 2 ST125 1 100 100 180 Current peak to peak ST125 3 ST125 2 ST125 1 30 30 60 Amps Slew rate 14 V sec Dynamic headroom ST125 3 ST125 2 ST125 1 1 0 1 4 1 5 dB S N A weighted 95 dB Voltage gain 28 Line voltage 120 220 240 VAC switchable Dimensions O A 17 w X 16 d X 5 75 h Weight 37 lbs max Power consumption 680 watts max 7 5 Amps max current draw...

Page 14: ...ades B K delivers exceptional value to its customers But what is Upgradability Upgradability is not a guarantee we define it as a philosophy of designing and manufacturing products so that as audio technology evolves B K can provide enhancements and improvements to its products that are economically viable THE EXPRESS FACTORY WARRANTY HEREIN CONTAINED IS IN LIEU OF ANY AND ALL OTHER WARRANTIES EXP...

Page 15: ... N P U T C H A N N E L 2 I N P U T C H A N N E L 3 I N P U T CONTROL IN ALLOWS AMPLIFIER OPERATION WHEN A 5 24V SIGNAL IS APPLIED WITH A 3 5mm MINI JACK X L R B A L A N C E D R C A U N B A L A N C E D X L R B A L A N C E D R C A U N B A L A N C E D X L R B A L A N C E D R C A U N B A L A N C E D B K Components Ltd Made in the U S A www bkcomp com R C A I N P U T X L R I N P U T R C A I N P U T R C...

Page 16: ...13 WWW BKCOMP COM B K Components Ltd 2100 Old Union Road Buffalo New York 14227 Phone 716 656 0026 ...

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