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Rear Panel Connections - Detailed Explanation
Your new subwoofer is equipped with both speaker-level and line-
level inputs. Use the RCA/Phono type "INPUT" jacks when con-
necting your subwoofer to a pre-amp, signal processor, or line-level
crossover. The "SPEAKER LEVEL INPUT" jacks connect directly
to the speaker outputs of an integrated amplifier or receiver. Your
amplifier section will notice no additional loading effects when you
use these inputs because of their high impedance.
Low-Pass Crossover
Both sets of inputs sum the left and right channels together and
the resulting signal is passed through an adjustable low-pass cross-
over before being amplified. The crossover control allows you to
adjust the upper limit of the subwoofer's frequency response from
40 to 120 Hz. The subwoofer's response will begin rolling off above
the frequency you set this control to.
You should set the crossover frequency to obtain a smooth and
seamless transition from the subwoofer to the main speakers in
your system. If your main speakers are smaller units with limited
low frequency output, you may wish to choose a higher frequency
(such as 100-120 Hz) than you would with larger speakers which
have greater low frequency output. With larger speakers, you might
start with this control set lower, such as 80 Hz.
Subwoofer Direct
Subwoofer Direct is a setting on the low-pass crossover knob and
will allow frequencies up to 200 Hz into the subwoofer. If you are
not using an external crossover, we recommend that you use the
one provided within the DPS unit for optimum performance.
Phase Adjustment - 0°/180°
This control allows you to "reverse" the phase of the subwoofer's
output signal 180° to correct for any possible mismatch and result-
ing cancellation between the subwoofer and your main speakers.
To adjust, simply listen to the system with music playing. Then
move the switch from one position to the other and listen for a
change in low frequency output. The correct position will have a
greater amount of apparent low frequency output.
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