YORKVILLE PARASOURCE Série Manuel De L'utilisateur page 3

Introduction
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 premium-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 ca-
ble 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 subwoof-
er. This control adjusts for the relative sensitivity of the companion full-range loudspeakers and the
desired system frequency 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.
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