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7. Speaker Fuses

 - Protection against amplifier damage in the case of shorted speaker   

                                  wires.  Replace fuse with same value 6 AMP SLOW BLOW only!  

    

                                  IMPORTANT!

Level controls

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.  Any fine tuning should be done by the preamplifier

Example: When using 4 ohm and 8 ohm speakers together, the 4 ohm may sound louder
than the 8 ohm at a given volume level.  The level controls on the amplifier are used to
match the speakers volume levels.  Clockwise will increase the output.  Counter
Clockwise will decrease the output.

Inputs 

RCA type connectors accept line inputs from the preamplifier’s output connectors.  There
are five/six input connectors, one for each channel, that may be used to connect the
amplifier to the preamplifier. 

RCA cable connector

Page 5

P/N 13007 Rev.0004

Summary of Contents for 7250

Page 1: ...B K Components Ltd P N 13007 Rev 0004 Reference 7250 7260 series II Five Six Channel Amplifier OWNER S MANUAL...

Page 2: ...B K Components Ltd 2100 Old Union Road Buffalo New York 14227 P N 13007 Rev 0004...

Page 3: ...page 4 Rear panel description page 4 6 Level controls page 5 Inputs page 5 6 Outputs page 6 Control Muting page 8 9 System installation page 7 Making the connection page 7 8 Troubleshooting page 10 C...

Page 4: ...if the power rating of each individual driver is exceeded by the amplifier Make sure that all the drivers in your speaker system are capable of handling not only the power being delivered by the ampl...

Page 5: ...emanding audio signals at rated power levels Features Toroidal Transformers Efficient high current shielded transformer Discrete Circuitry More accurate and three dimensional reproduction of source ma...

Page 6: ...d to the amplifier 3 Speaker outputs For connecting the speakers to the amplifier Explained further on page 6 4 Amplifier control muting input output To provide remote switching of mute on off of the...

Page 7: ...t driver impedances Any fine tuning should be done by the preamplifier Example When using 4 ohm and 8 ohm speakers together the 4 ohm may sound louder than the 8 ohm at a given volume level The level...

Page 8: ...d to accept a banana type plug or spade lug connector shown below and are color coded for easy identification The positive post should always be connected to the speakers jack The negative post should...

Page 9: ...n possible use a separate AC power line for the amplifier one that is not shared by any other household component Important Tip Take a piece of string longer than the longest cable run and mark it at...

Page 10: ...problems that cannot be traced to the source or the material being played consult the TROUBLESHOOTING section on page 10 Note When turning equipment off the amplifier should always be turned off firs...

Page 11: ...IS CIRCUIT 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 o...

Page 12: ...Speaker fuse blown 6 Level controls adjusted improperly No sound on some or all selected channels on LED illuminated 1 Reconnect power cord 2 Check AC switch or fuse 3 Check for shorts or overloading...

Page 13: ...Slew rate 14 V usec 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 25 h Weight 70 lb Power consumption 1830 watt...

Page 14: ...B K shall not be liable for any incidental or consequential damage arising out of a defect in material or workmanship of the unit during the terms of this warranty or thereafter Some States do not all...

Page 15: ...B K Components Ltd 2100 Old Union Road Buffalo New York 14227 P N 13007 Rev 0004...

Page 16: ...B K Components Ltd 2100 Old Union Road Buffalo New York 14227 www bkcomp com P N 13007 Rev 0004...

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