Sony SA-WMSP4 User Manual

SA-WMSP2/WMSP4
US Model
Canadian Model
AEP Model
UK Model
E Model
SERVICE MANUAL
ACTIVE SUBWOOFER
Ver 1.0 2002. 02
SPECIFICATION
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 6 ohm loads, from 28 – 200 Hz; rated 100
watts (SA-WMSP4) / 50 watts (SA-WMSP2),
minimum RMS power, with no more than 0.8%
total harmonic distortion from 250 milliwatts to
rated output (Models of area code U only).
Speaker system Active subwoofer,
magnetically shielded
Speaker unit Woofer: 20 cm cone type
Enclosure type Acoustically loaded bass
reflex
Continuous RMS power output
(6 ohms, 20 – 250 Hz)
SA-WMSP4 100 W
SA-WMSP2 50 W
Reproduction frequency range
28Hz – 200 Hz
High frequency cut-off frequency
150 Hz
Input LINE IN (input pin jacks)
Power requirements
Area code Power requirements
U, CA, MX 120 V AC, 60 Hz
CEL, CEK, SP, MY 230 V AC, 50/60 Hz
AR 220 – 230 V AC, 50/60 Hz
E2/E3 120/220/230 V AC, 50/60 Hz
Power consumption
SA-WMSP4 100 W
SA-WMSP2 50 W
Dimensions (w/h/d) Approx. 272 326 405
mm (10 3/4 12 7/8 16
inches) including front
panel
Mass
SA-WMSP4 10.0 kg (22 lb 1 oz)
SA-WMSP2 9.0 kg (19 lb 14 oz)
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-873-478-01
2002B1600-1
© 2002.02
• SA-WMSP2 is the sub woofer section in
HT-DDW740.
• SA-WMSP4 is the sub woofer section in
HT-DDW840.
photo: SA-WMSP4 silver model
• Abbreviation
AR : Argentin model
CA : Canadian model
CEK : UK model
CEL : AEP model
MX : Mexican model
MY : Malaysia model
SP : Singapore model
U : US model

Sony SA-WMSP4 Specifications

General

Type	Active Subwoofer
Power Output	100W
Frequency Response	28Hz - 200Hz
Driver Size	8 inches
Weight	7.5 kg
Amplifier Power	100W
Inputs	Line level

Summary

Product Specifications

Power Output and Requirements

Details power output, harmonic distortion, and electrical power requirements for SA-WMSP2/WMSP4 models.

Model and Physical Specifications

Lists area codes, power consumption, dimensions, and weight for different regional models.

Safety Procedures

AC Leakage Testing and Measurement

Guidelines and methods for safely testing AC leakage current from exposed metal parts to earth ground.

Diagrams and Notes

Diagram Conventions and Notes

Explains symbols, conventions, and notes for interpreting printed wiring boards and schematic diagrams.

Circuit Board Locations and Layouts

Visual guide to circuit board locations and printed wiring board component layouts for SA-WMSP2/WMSP4.

Schematic Circuit Diagrams

Detailed electrical schematics for the main, control, input, and power boards of the SA-WMSP2/WMSP4.

Exploded Views

Front Section Component Breakdown

Illustrated breakdown of the front panel components and assembly for SA-WMSP2/WMSP4.

Amplifier Section Component Breakdown

Illustrated breakdown of the amplifier section components and assembly for SA-WMSP2/WMSP4.

Electrical Parts Listing

Control, Input, LED, and Main Board Parts

Comprehensive list of components for control, input, LED, and main boards.

Power Trans, Switch, and Miscellaneous Parts

List of components for power transformer, switch boards, fuses, cords, and accessories.

Revision History