Yorkville Sound PS15S 15" Parasource Powered Subwoofer (1000W) - Manuel (Page 4)

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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.
3. Input (Link) Jacks
The inputs are designed to make it easy to hook up
your PS12s, PS15s and PS18s to almost any audio
system with minimal hassle. An external crossover is
not necessary and connections can be made using the
¼-inch and/or the XLR inputs and Thru connections.
The PS12s, PS15s and PS18s may be plugged in
before or after the full-range loudspeakers, they do not
alter the signal to the daisy-chained (thru) loudspeak-
ers and will not draw any power from the host amplifier/
processor driving them.
Note: As well as accommodating full-range
loudspeakers, the Thru jacks allow many PS12s,
PS15s and PS18s subwoofers to be connected in a string (parallel). There is no practical limit to
the number of PS12s, PS15s and PS18s subwoofers that may be connected together.
4. Protection
The PS12s, PS15s and PS18s are protected against excess driver excursion and against voice coil
overheating. Please ensure that the line/speaker switch is in the correct position to prevent clipping
of the input circuitry. The PS Series Powered Subwoofers have a DSP-based circuit to prevent clip-
ping, over power and over excursion. For the best results, set the system so that the limiter LED oc-
casionally lights up Red and is NOT Yellow all the time. Limiter LED lights Red when the excess driver
excursion is active, this keeps the dynamics of the music. When the limiter LED is Yellow the voice coil
overheating protection is active, this will compress the dynamics of the music. At high levels the limiter
will limit the gain of the PS Series Powered Subwoofer and hence if the user attempts to set the sub-
woofer level control at a high level, the resulting setting will be overridden by the internal protection.
The level control should be set while operating at low levels (under 10 watts). This is accomplished
by turning the master volume of the signal going to the subwoofer down to allow the balancing and
setting of the bass along with the full range speaker top in use. If the level control is set too high due
to setting it at high operating levels the input circuit will clip and the dynamics of the bass will be lost.
The Red Clip indicator will signify when this occurs. This can happen without audible distortion since
the filters and limiters will suppress the distortion.
Note: At high power levels, when the limiter is operating, increasing the Subwoofer’s Level Control
will NOT increase the output. Do NOT continue to increase this setting while operating at high
levels.
5. Stand Mounting Adapter
The PS Series Powered Subwoofers come equipped with a built-in stand mounting adapter that can
be used with Yorkville SW Teletube accessory to support powered top cabinets.
WARNING: PS Series Powered Subwoofers MUST be on a flat, level surface to support the
cabinet safely. Do not use larger than the recommended top cabinets!
Input Mode
Line
Spkr
Pwr
Limit
Clip
Level
Min Max
Input
( LINK
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