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APPLICATION: The
PB-208 is a
professional sub
woofer system,
designed for effective
use in demanding
professional
applications such as
the reproduction and
reinforcement of bass
in venues and
applications as diverse
as from recording
studio to music store
playback, from video
movie playback to restaurant
FGM/BGM, discotheques, airports, places of worship, retail
premises, restaurants and public houses.
DESCRIPTION:The PB-208 has two 8” (200mm) heavy-duty
woofer drive units.The PB-208 is a twin ported acoustically-efficient
enclosure.
DEPLOYMENT: The PB-208 is a professional sub woofer system
can be mounted in a vertical or horizontal position. With the use of
special accessories they can be installed on the wall or ceiling.
IMPORTANT NOTE - See Warning Section on RIGGING •
SUSPENDING • MOUNTING before attempting to install
Wharfedale Pro The PB-208 is a professional sub woofer system.
INPUT LEVEL CONTROL: Controls output level of signal into sub
to allow low frequency intergration into system creating a balanced
programme.
AUTO SENSE ON/OFF
SWITCH: Auto on/off
sleep feature is indicated
through a front panel
mounted LED. When
engaged the PB-208
senses when a signal is
not present at the input
and places the unit in a
standby mode and the
‘blue’ indicator LED on
the front baffle board
goes out. Once a signal
is detected at the input
the unit moves into
operation mode and the
LED activates. This
saves the power amp
from being constantly
engaged during periods
when though the unit is
required to be operational
there will be periods
when no signal is
present.
BASS BOOST: The PB-
208 sub woofer features
a switch that when
engaged boosts the 60Hz
band by + 6dB. This feature has benefit to say a music programme
when played at low levels where it may appear the lower
frequencies sound subdued, the 208-Sub Bass Boost enhances the
lower sound for a fuller sound.
PHASE SWITCH: For the smoothest integration into a system, the
PB-208 sub woofer phase relationship, to the main system can be
moved to any of four points between: In phase, to one full rotation
of phase at the selected low
pass frequency. These
points are equal to “0”, one
quarter r, one half and a full
phase rotation which can be
calculated at for example
80Hz, to an approximate
delay in position of “0” (in
phase) 1 meter, 2 meters,
or 4 meters. These delays
can be also be specified in
relation to time offsets, as
“0”, 4, 8 and 16
milliseconds. With this
sophisticated arrangement
of controls an installer/user
can accurately integrate the
PB-208 into a system for
optimum sonic integrity and
performance. This facilitates
variable placement of the
PB-208 without fear of non
time allined system.
Wharfedale International Limited, IAG House, Sovereign Court,
Ermine Business Park, Huntingdon, Cambs, PE29 6XU, England
WHARFEDALE website : www.wharfedalepro.com
The information in this manual is subject to change without notice.
All rights reserved © 2001Wharfedale Pro, IAG group
PB-208 COMPACT ACTIVE SUBWOOFER SYSTEM
PB-208 TECHNICAL SPECIFICATION
MODEL
Type of speaker
Power Handling
Sensitivity
Frequency Range
Four adjustable
Crossover points
Weight
Input connector
Dimension (mm & ins)
W x H x D
Phase
Bass Boost Switch
208-Subwoofer
2 x 8” (200mm)
300Watt peak power
amplifier, built in
97dB 1W/1m
40Hz – 250 Hz
80Hz, 100Hz,
150Hz, 200Hz
2 x XLR /
1
⁄
4
” Jack bal
RCA input/Output
334 x 555 x 210
-
0, 90, 180, & 360
degree, phase
alignment
60Hz + 6dB boost
BALANCED INPUT WIRING TO WHARFEDALE PRO PB-208 - XLR to XLR
2
3
1 12
BALANCED OUTPUT
SIGNAL DIRECTION
INPUT to PB-208
+
+
3
Ground (earth) CABLE
2
3
1
BALANCED OUTPUT
SIGNAL DIRECTION
INPUT to
PB-208
BALANCED LINE INPUT WIRING TO WHARFEDALE ACTION MIXER - XLR to STEREO 1/4" JACK
+
+
Ground (earth) CABLE Only connect ground if hum occurs
TIP
RING
SLEEVE
OUTPUT SIGNAL DIRECTION INPUT PB-208
UNBALANCED INPUT AND OUTPUT WIRING WITH MONO 1/4" JACK CONNECTIONS
+
+
Ground (earth) CABLE
TIP
SLEEVE
TIP
SLEEVE
12
Balanced Output
SIGNAL DIRECTION
INPUT to PB-208
BALANCED OUTPUT WIRING - STEREO 1/4" JACK to XLR CONNECTORS
+
+
3
Ground (earth) CABLE Only connect ground if hum occurs
TIP
RING
SLEEVE
+
+
Ground (earth) CABLE Only connect ground if hum occurs
TIP
RING
SLEEVE
TIP
RING
SLEEVE
Balanced Output SIGNAL DIRECTION INPUT
BALANCED INPUT AND OUTPUT WIRING WITH STEREO 1/4" JACK CONNECTIONS
Balanced Output SIGNAL DIRECTION Balanced Input to PB-208