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page 8powered subwoofers
Unless you have a V-125, a full-range signal (including deep bass) is fed to your Satellites. To
roll off (filter) the signal fed to the Satellite speakers to achieve true biamplification, you must:
1. Have a separate amp and preamp OR a receiver or integrated amp that allows you to separate
its amp and preamp stages.
2. Add an M&K Electronic High-Pass Filter to your system. See Page 9 for more information.
WIRING WITH A SEPARATE AMP AND PREAMP (RCA JACK INPUTS)
The "FROM PREAMP" RCA input jacks on the Subwoofer allow you to directly connect the
Subwoofer to preamp-level components such as preamplifiers, integrated amps and receivers with
preamp outputs, Electronic High-Pass filters, crossovers, surround sound processors, etc.
These inputs will give slightly better bass quality than the speaker wire inputs, because they
bypass the receiver or amplifier. If you have only one set of preamp outputs, and are not using an M&K
Electronic High-Pass Filter or a crossover, you will have to use a Y-connector to feed both the amplifier
and the Subwoofer. The V-125's high-pass filter does not work when the RCA jack inputs are used.
In many cases, the slight improvement this makes in bass quality may be offset by a slight
degradation of the Satellite speakers' sound quality. We generally recommend against using a
Y-connector just to use the Subwoofer's "FROM PREAMP" jacks, but please feel free to experiment.
To connect the Subwoofer in this way, simply run a set of shielded RCA - RCA interconnect cables
from the output jacks on your component to the "FROM PREAMP" jacks on the Subwoofer's
backplate.See Figure 4. If you are using two Subwoofers, run the left channel interconnect cable to
FIGURE 4 - USING THE PREAMP INPUTS (RCA JACKS)
If you have one Preamp Output, connect both the Subwoofer and the Amplifier to it.