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PS12s, PS15s and PS18s
Congratulations on your purchase of a Parasource Series subwoofer, the best option when adding a subwoofer
to Yorkville Sound’s Parasource Series powered speaker enclosures. The PS12s, PS15s and PS18s are premi-
um-quality subwoofers with integrated power amplifiers.
1. Input Mode Switch
The line-level position is used when the PS12s, PS15s and PS18s are fed a signal from a processor, electronic
crossover, the output of an un-powered mixer or the loop-through of a powered speaker cabinet. When in line-
level mode, using balanced ¼-inch (Tip, Ring, Sleeve) and/or XLR cables will reduce the unit’s sensitivity to
hum and buzz.
For speaker level operation, connect the PS12s, PS15s and PS18s just like an ordinary speaker (in parallel
using the loop-through jacks) along with the passive full-range loudspeakers. The speaker level position should
be used when the PS12s, PS15s and PS18s are fed with a ¼-inch speaker cable directly from the output of an
amplifier or a powered-mixer. You can also use a speaker level signal from the parallel connection on an un-
powered speaker cabinet.
WARNING:
• Do not plug in two speaker level sources to a single ES Series Powered Subwoofer!
• Increasing the Level control while in limiting will not increase the loudness and may lead to feedback
when the operating level is reduced.
2. The PS12s, PS15s and PS18s’ Level Control
The Level control adjusts the amount of bass added to the sound system by the Parasource subwoofer. This
control adjusts for the relative sensitivity of the companion full-range loudspeakers and the desired system fre-
quency response. This control should be set by listening with a medium-level input signal (such that the limiter
is not firing).
Note: It’s not recommended to set this control at high levels since the limiter will then greatly affect the
output level.
Note: Setting the PS12s, PS15s and PS18s Level control at the center detent is the correct starting point
when setting up a sound system. From there, adjustments can be made for the best sound. The detent is
the setting that will give full power when the line input is used and the input signal is at a level of +3 dBv.
Summary of Contents for PARASOURSE Series
Page 12: ...9 Notes...
