Y
118PW
200 WATT
POWERED SUBWOOFER
DESIGNED & MANUFACTURED BY
YORKVILLE SOUND • TORONTO, CANADA
Introduction
The Y118PW powered subwoofer incorporates a 200 watt amplifier. It can be used to enhance the bottom end
(bass) of a full-range speaker system and increase the overall output of the system. The inputs to the subwoofer
can accept a single source either from a speaker/amplifier output or a line level output from a pre-amp or mixer.
The Y118PW also has a built-in limiter and thermal protection that make this product smooth and robust
at high power levels. The internal limiter and the internal protection are factory set to maximize performance.
Features
Power Switch & Power On LED
When the unit is turned on, the green LED (located
on the top left hand of the control panel, near the
Yorkville logo) will illuminate.
Input Level Switch
Speaker
Normally, the input to the subwoofer is from a full-
range speaker cabinet, or amplifier output.
Line
In this case, the input to the subwoofer is from a line
level source such as a mixer.
Volume
A setting of 0 dB on the SUBWOOFER LEVEL
control is the correct starting point when setting
up a sound system. From there the sound can be
adjusted for best sound. The 0 dB mark refers to the
setting that will give full power when the line input
is used and the input signal is at a level of +4 dBV.
This also is the setting to give a sensitivity of 2.83
Vrms (1 watt 8-ohms) for 100 dB spl when set for
speaker level input. With a typical full range compan-
ion speaker this will give flat response. In either line
or speaker operation it will usually be desirable to
set the control at +3 to +6 to give some bass boost
at low power levels. At levels approaching full power
the built-in limiter will automatically reduce the gain
to prevent over powering the subwoofer. Operation
with settings significantly above +12 may clip the cir-
cuitry in the subwoofer reducing the dynamics of the
music. Setting the subwoofer gain above +12 is only
appropriate at low operating levels.
SPKR
PARALLEL INPUTS
LINE
230V
120VAC
50Hz
60Hz 2.2A
1.1A
Average
LR 21877
Yorkville
+10
+3
0
GND
LIFT
+15
-3
dB
VOLUME
Ground Lift Switch
If a hum, or buzz is detected from the subwoofer, try
setting the switch to the GND LIFT position (OUT
position). The switch should otherwise be left in the
GND (IN position).
Input Jacks
The two inputs are 1/4" parallel jacks and can be
connected as shown in figures 2 and 3, on the fol-
lowing page. Please note that there is no effect to
the performance of the full-range speaker if it is used
to supply a music signal to the Y118PW.
Multiple Y118PW's
As well as accommodating the full-range speakers,
the parallel input jacks allow many Y118PW's to be
connected in a string. There is no practical limit to
the number of Y118PW's that may be connected
together.
User Note
For normal operation connect the Y118PW just
like any ordinary speaker along with the full-range
speakers. The input level switch should be set to
speaker. If the audio source does not have a U
ground (a ground pin on the AC cord), the ground
lift switch must be set to gnd. The Y118PW may be
wired before or after the full-range speakers. The
Y118PW does not alter the signal to the full-range
speakers. The Y118PW will not draw any power
from the amplifier driving the full-range speakers.
Please note that an external crossover is not neces-
sary.
3
POWER
ON
OFF
CAUTION: REPLACE WITH
FUSE
SAME TYPE FUSE AND RATING
T1,25A
ATTENTION: UTILISER UN FUSIBLE DE
RECHANGE DE MEME TYPE ET CALIBRE