Model, Subwoofer – Wharfedale PB-208 User Manual

Page 2

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.

P B - 2 0 8 C O M P A C T A C T I V E S U B W O O F E R S Y S T E M

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 /

⁄

” 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

BALANCED OUTPUT

SIGNAL DIRECTION

INPUT to PB-208

Ground (earth) CABLE

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

Balanced Output

SIGNAL DIRECTION

INPUT to PB-208

BALANCED OUTPUT WIRING - STEREO 1/4" JACK to XLR CONNECTORS

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