User Guide

2
Placement
INSTALLATION / MOUNTING
The PSC-221 has been designed to accomplish two
basic objectives:
1) Make the subwoofer sound like it’s in the front of the car
(even when the subwoofer is in the back of the car).
2) Raise the perceived soundstage to ear level and solidify
the center image (even when your front speakers are
closer to your feet).
Both objectives are accomplished by shifting the signal
phase, primarily in the lower midrange frequencies,
resulting in arrival time corrections to the sound from your
front speakers. In a typical autosound system, the signal
path is divided into different frequency ranges (subwoofer,
midrange, etc.) as well as locations (front and rear). For
best results, localizing your subwoofer to the front, you
will need an active crossover sending only subwoofer
frequencies to the amplifier running your subwoofers.
When placing your phase shifter:
If your system is: Insert the PSC-221 in front of:
4 way The midbass amp
3 way The midrange amp
2 way The full range/highpass amp
Note: The PSC-221 will not improve your front stage if it is
controlling only the rear speakers.
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