C-11 Powered Subwoofer
Owner's Information
Important Instructions
1. Read your owner's manual carefully before using the product. Retain this manual
for future reference.
2. The subwoofer should be placed at a ventilated, dry and cool location, away from
any heat sources such as radiators or amplifiers. Do not obstruct the amplifier in
the C-11 from ventilation. It is necessary that air can flow around the finned heat
sink on the rear panel of the amplifier.
3. Do not use the subwoofer near water or expose it to rain or moisture.
4. Always unplug the power cord first when making connections. Switch power on
only after you check and make sure all connections are made correctly.
5. Unplug the power cord from the outlet when you are not going to use the
subwoofer for a long period of time.
6. To clean, unplug the power cord from the outlet first. Use a damp cloth only to
wipe dust off the surface. Do not use any liquid cleaners.
7. Do not put coffee cups or other objects on top of the cabinet. They can be shaken
off when the subwoofer is in operation as it can produce a lot of vibration.
Introduction
C-11 is a home theater subwoofer equipped with a build-in equalizer. The 5-
band equalizer is a powerful tool in correcting anomalies of subwoofers caused by
room acoustics. It will greatly increase subwoofer performance when used properly.
In the real world, subwoofers generally do not have a flat frequency response. Only
in ideal conditions such as open air or large anechoic test chambers do they have a
perfect response measurement. When a subwoofer is played in a listening room, the
bass frequencies can be up or down 10 dB from the ideal response. The sound can
have a “boomy” or ill-defined bass that will impair the overall musical performance.
The 5-band equalizer is designed to control offending bass notes that “booms”
louder than they should. It features precisely aligned 1/3-octave equalization filters
that are only found on the best professional audio equipment.
The cabinet has been designed using extensive computer modeling for the best
possible alignment between driver and box. Coupled with two high excursion