Infinity SSW-10 Service Manual

Models:

SSW-10 subwoofer
Infinitesimal IV subwoofer
Servo Controlled subwoofer
RS Subwoofer

SERVICE MANUAL

Infinity Systems Incorporated
250 Crossways Park Dr.
Woodbury, New York 11797 Rev0 12/2003

CONTENTS

1

SPECIFICATIONS/PRODUCT ID……………..…….…….……….……………1
INSTALLATION/CONTROLS…………………..…….……………..……………2
OPERATION………………………………………..………………..…………….4
CIRCUIT DESCRIPTION…………………………..………………..……………5
THEORY OF OPERATION…………………………..…………….……………11
DETAILED TROUBLESHOOTING…………………….………….……………18
EXPLODED VIEW S………………………………………………….…………..24
MECHANICAL/ELECTRICAL PARTS LISTS……………………….…………26
PCB DRAWINGS…………………………………………………………………33
POWER TRANSFORMER………………………………………………………35
SEMICONDUCTOR PINOUTS…………………………………………………36
SCHEMATICS (Infinitesimal IV/SSW-10/Servo Controlled Subwoofer)……37
SCHEMATICS (RS Subwoofer)……………………………………….. ………38
PACKING (Infinitesimal IV/SSW-10/Servo Controlled Subw oofer)……..…… 39

SPECIFICATIONS

Frequency Response 40 - 200 Hz
Crossover Frequency 40 - 200 Hz (Continuously Variable)

Output Power 100 Watts (RMS) into 2 ohms
THD (@ 75 W/100 Hz) < .l %
Signal to noise ratio > 80db
Input Impedance 25K Ω

Driver 10" (254mm) IMG Woofer - (DCR = 1.8 Ω)

Inputs Line Level and Speaker Level
Outputs

Infinitesimal IV/SSW-10/Servo Controlled Subwoofer Full Range Speaker
RS Subwoofer 180 Hz High Pass Filter

Dimensions

Infinitesimal IV/SSW-10/Servo Controlled Subwoofer 13.25" x 13.25" x 13" (337 x 337 x 330mm)
RS Subwoofer 23.25" x 7.25" x 13.25" (59x18.5 x 33.5mm)

Weight (Infinitesimal IV/SSW-10/Servo Controlled Subwoofer) 34 lbs. (15.4kg)

PRODUCT IDENTIFICATION

SSW-10 subwoofer
Infinitesimal IV subwoofer
Servo Controlled subwoofer
RS Subwoofer (actually a different product, but the amplifier is nearly identical)

The Infinitesimal subwoofer, Infinitesimal IV Subwoofer, SSW-10, or Servo Controlled Subwoofer may
be identified from the owner's manual, outer carton or amplifier plate. It is a square black cube and is ported.

Alternately, the RS Subwoofer has a distinct rectangular enclosure. The differences in the RS Subwoofer
include a non- r emovable power cor d, two high level input terminals, and a passive high-pass filter for satellite
speakers (activ e when the high level input terminals a re utilized). There is no port .

This service manual covers the following models:

2

3

4

CIRCUIT DESCRIPTION

5

CIRCUIT DESCRIPTION (cont'd)

6

CIRCUIT DESCRIPTION (cont'd)

7

CIRCUIT DESCRIPTION (cont'd)

8

CIRCUIT DESCRIPTION (cont'd)

9

CIRCUIT DESCRIPTION (cont'd)

10

THEORY OF

11

OPERATION