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9  

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 overloading 
4. Supply Control IN with a 5-24 Volt AC or DC 

supply (Page 8) 

 

No sound on some 
or all selected 
channels (‘on’ LED 
illuminated) 

1. Speaker leads loose or faulty 
2. Line stage to amp cables loose or 

faulty 

3. Source to line stage cables loose 

or faulty 

4. Line stage or source not correctly 

selected 

5. Speaker fuse blown 

1.  Tighten, repair or replace cable 
2.  Tighten, repair or replace cable                       
 
3. Tighten, repair or replace cable 
 
4. Check all switch settings 
 
5. Check all speaker fuses 
 

Sound lacks 
direction, bass 
weak 

1. 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 USE A HIGHER RATED 

FUSE

please contact customer service to have the unit serviced. 

 

CARE AND CLEANING 

 
Under normal use, the amplifier will not require any special care. Over time you may wish to clean the exterior of 
the unit by wiping it with a damp cloth to remove any dirt or dust that accumulates on it. Unplug the amplifier and 
be sure that it has completely powered down before you apply any damp cloth. Do not let any liquid enter the 
amplifier through the vents in the top cover. 

REMEMBER, LIQUIDS CONDUCT ELECTRICITY!!! 

You may clean 

the connectors on the back panel with isopropyl alcohol annually. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for P/N13445

Page 1: ...P N13445 0702 B K S B IMPLY ETTER B K Components Ltd Reference 200 5 Reference 200 7 Owner s Manual M U L C A S F I L...

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: ...anel 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 Troubleshooti...

Page 4: ...ce 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...

Page 5: ...xternal 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 si...

Page 6: ...5 INPUT 6 INPUT 7 4 8 9 7 6 5 1 AC Fuse Holder holds the AC Line fuse This fuse is a 15 Amp 250 Volt Slow Bow fuse Replace only with the same type and value fuse 2 AC Input Receptacle for attaching t...

Page 7: ...MPLIFIER 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 seven balanc...

Page 8: ...N OUT FRONT RIGHT FRONT CENTER LEFT SURROUND LEFT SURROUND BACK SURROUND RIGHT SURROUND BACK RIGHT FRONT LEFT CONTROL I O INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 CTRL IN CTRL IN CTRL O...

Page 9: ...PUT CHANNEL 3 PLUS MINUS OUTPUT CHANNEL 2 PLUS MINUS OUTPUT CHANNEL 1 PLUS MINUS INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 CTRL IN CTRL IN CTRL OUT CTRL OUT 12VDC 125mA 12VDC 125mA XLR B...

Page 10: ...t 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...

Page 11: ...Rear view 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 12VD...

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 Chec...

Page 13: ...actor 450 Current peak to peak 75 Amps Slew rate 14 V sec Dynamic headroom 1 2 dB S N A weighted 95 dB Voltage gain 28 Line voltage 120 220 240 VAC switchable Dimensions O A 17 w X 19 25 d X 7 75 h We...

Page 14: ...des 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 tec...

Page 15: ...U T 5 I N P U T 6 I N P U T 7 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 B K Components Ltd Made in the U S A www bkcomp com B K S B IMPLY ETTER CONTROL IN A...

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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