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#1: Integrated Amp or Receiver withOUT subwoofer
(or preamp) outputs. Connection using
speaker cables & speaker level converters. Also
used for stereo subs.
This is
sometimes referred to as "bass augmentation". The main
speakers are run full-range and the subwoofer is used to augment or
fill in just the lower bass. Connect a second set of speaker cables
in parallel with your existing speaker cables. This set of cables is
run to our speaker level converters, which plug into the subwoofer
left and right inputs. (If using stereo subs you will run one cable
to each sub). Set filters A & B, the input level, and phase
controls to get a seamless blend with your main speakers.
As an option, you can add a capacitor(s) in series with your main
speakers. The capacitor will block some of the lows that might
otherwise overdrive your main speakers. This is a very imprecise
method and generally only used with small speakers with limited low
frequency power handling. We recommend trying approximately 200mfd
of capacitance. Polypropylene capacitors are suitable though
expensive. Alternately, non-polarized electrolytic (NPE) capacitor(s)
with a minimum 100 volt rating may be used.
#2: Integrated Amp or Receiver withOUT subwoofer (or preamp)
outputs
Same as # 1 but using shielded RCA interconnects
instead of speaker cables. Also used for stereo subs. (Preferred over #1 in situations where noise or hum pickup
might be a concern).
Connect
speaker level converters in parallel with your main speakers.
Connect a female to female RCA adapter to the speaker level
converter and use shielded RCA interconnect cables to connect to the
subwoofer. (If using stereo subs you will run one interconnect to
each sub). (DH Labs Subsonic Cable is perfect for this application)
Same capacitor option as #1.
#3: Integrated Amp or Receiver WITH preamp outputs and main
amp inputs
Use Y-Adapters to split the signals from the left and right
preamp outputs. Connect one end of each Y-Adapter to left or right
main amp input, (using a short RCA interconnect). Use proper lengths
of shielded interconnects to connect the other ends of the
Y-Adapters to the right & left inputs on the sub. (If using
stereo subs you will run one interconnect to each sub).
Your main speakers will receive a full range signal. To reduce low
frequency content to your main amp and speakers, use optional High
Pass Filters plugged into the main amp inputs.
#4: Separate Preamp & Amp
Shown with
Y-Adapters. If your preamp has two sets of outputs you will not need
the Y-Adapters. Use proper lengths of shielded interconnects to
connect one set of outputs to your main amplifier and one set of
outputs to your sub left and right inputs. (If using stereo subs you
will run one interconnect to each sub).
Your main speakers will receive a full range signal. To reduce
low frequency content to your main amp and speakers, use optional
High Pass Filters plugged into the main amp inputs.
#5: Separate Preamp & Amp, using the
subwoofer's internal high-pass filters
We
recommend this option only if highest output levels from your main
speakers is the dominant criteria. We feel that the optional passive
filters as in #4 are a better choice for most audiophiles.
Use shielded interconnects from your preamp output to the
subwoofer left and right inputs. Then use shielded interconnects
from the left and right highpass outputs to your amplifier inputs.
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