Russound WB-1 User Manual

In-line Impedance Matching Device

WB-1

Instruction Manual

5 Forbes Rd. Newmarket, NH 03857

☎ 603.659.5170 • Fax [phone]

e-mail: [e-mail]

28-0012

Limited Warranty

The Russound WB-1 is fully guaranteed for Five (5) years from the date of
purchase against all defects in materials and workmanship. During this
period Russound will replace any defective parts and correct any defect in
workmanship without charge for either parts or labor. For this warranty to
apply, the unit must be installed and used according to its written
instructions. If service is necessary, it must be performed by Russound. The
unit must be returned to Russound at the owner’s expense and with prior
written permission. Accidental damage and shipping damage are not
considered defects under the terms of the warranty. Russound assumes no
responsibility for defects resulting from abuse or servicing performed by an
agency or person not specifically authorized in writing by Russound.
Damage to or destruction of components due to improper use voids the
warranty. In these cases the repair will be made at the owner’s expense. To
return for repairs, the unit must be shipped to Russound at the owner’s
expense, along with a note explaining the nature of the service required.
Be sure to pack in a corrugated container with at least 3 inches of resilient
material to protect the unit from damage in transit.

Russound sells products only through authorized Dealers and Distributors
to ensure that customers obtain proper support and service. Any Russound
product purchased from an unauthorized dealer or other source, including
retailers, mail order sellers and online sellers will not be honored or
serviced under existing Russound warranty policy. Any sale of products by
an unauthorized source or other manner not authorized by Russound shall
void the warranty on the applicable product.

Product Overview

The WB-1 is designed to match the impedance of the speakers to the
amplifier. Some amplifiers require an 8-ohm to 16-ohm impedance load
represented by the speakers. The WB-1 is available by order in a 2x, 4x or
8x impedance-matching configuration. When operating an 8 to 16-ohm
amplifier with speakers that represent a 4-ohm or 6-ohm impedance, the
amplifier will not operate properly. The WB-1 with a 2x configuration
allows the operation of the 4-ohm to 6-ohm speakers with an amplifier that
requires an 8-ohm load. The WB-1 with a 4x configuration will show the
amplifier an impedance of 16 ohms when operated with 4-ohm speakers.

Consult the charts below to determine which degree of impedance
matching is needed depending on the total number of speaker pairs used
with the amplifier.

NOTE: A WB-1 should be used with each pair of speakers.

2

012345678
0--2X4X4X8X8X8X8X
12X4X4X8X 8X 8X 8X
24X8X8X8X8X
38X8X8X
48X

Impedance Matching For 8 Ohm Amplifiers

8 Ohm Pairs

4 Ohm Pairs

012345678910111213141516
0 ---2X2X 4X 4X 4X 4X 8X 8X 8X 8X 8X 8X 8X 8X
1-2X2X 4X 4X 4X 4X 8X 8X 8X 8X 8X 8X 8X 8X
22X4X4X4X4X8X8X8X8X8X8X8X8X
34X4X4X8X8X8X8X8X8X8X8X
44X8X8X8X8X8X8X8X8X
58X8X8X8X8X8X8X
68X8X8X8X8X
78X8X8X
8 8X

Impedance Matching For 4 Ohm Amplifiers

4 Ohm Pairs

8 Ohm Pairs

Connection Instructions

Connect speaker cable from the amplifier’s speaker output to the WB-1
speaker input. Be sure to keep channels and polarity consistent.

Connect speaker cable from the WB-1 speaker output to the speakers. Be
sure to keep channels and polarity consistent.

Figure 1 shows an example of the WB-1 connected to an amplifier and
one set of speakers.

3

Specifications

Power Rating: 126 Watts power handling

42 W/ch RMS continuous

Terminations: Spring-loaded terminals

Wire Size: Up to 12 gauge wire

Dimensions: 3 1⁄4"W x 2 1⁄4"H x 3 1⁄4"D

(8.3 x 5.7 x 8.3 cm)

Weight: 2 lbs. (0.9 kg)

DPA-1.2 (two channel amplifier)

RCA Cable

Speaker Cable

Figure 1

Speaker Cable

OUTPUT

L+ L- R- R+

L+ L- R- R+

INPUT

WB-1

WB-1

Speakers