9
sumer sale. The AC power rating applicable to a particular unit is specified both on the
packing carton and on the attached serial number plate.
If you remove your amplifier from the country of original sale, be certain that AC power
supplied in any subsequent location is suitable before connecting and operating the
subwoofer. Substantially impaired performance or severe damage may occur to the
subwoofer if operation is attempted from an incorrect AC power source.
Frequently Asked Questions
How do I clean my amplifier? Use only a dry cloth to remove dust from the amplifier.
Do not use any liquids or chemical based cleaning products
Could you suggest a list of suitable electronics and cables that would be ideal for
MartinLogan speakers? The area of electronics and cable choice is probably the most
common type of question that we receive. It is also the most subjective. We have
repeatedly found that brands that work well in one setup will drive someone else nuts
in another. We use many brands with great success. Again, we have no favorites; we
use electronics and cables quite interchangeably. We would suggest listening to a num-
ber of brands—and above all else—trust your ears. Dealers are always the best source
for information when purchasing additional audio equipment or cables and will be well
versed in the subject of special safety requirements for in-wall cable.
Troubleshooting
No Output
• Check that all your system components are turned on, not muted, and that your
balance control (if applicable) is set correctly.
• Check to make sure your power outlet at the wall is working.
• Check your power cords, speaker wires, and interconnecting cables.
• Check to make sure no headphones are plugged in.
• Swap speaker wires at your amplifier with those of a speaker that is functioning
correctly. If the lack of output moves to a different speaker the problem could be
with other equipment in your system (i.e. amp, pre-amp, processor, etc.)
• Try hooking up a different set of speakers. If the lack of output moves to a different
speaker the problem could be with other equipment in your system (i.e. amp, pre-
amp, processor, etc.)
Lack of Bass or Poor Imaging
• Check your speaker wires. Is the polarity correct — (+) to (+) and (–) to (–)?
