Infinity INTERMEZZO 1.2s User manual

INTERMEZZO

1.2s Subwoofer

Service Manual

Infinity Systems, Inc

250 Crossways Park Dr.

Woodbury, New York 797

REV 45/2005

INTERMEZZO1.2s

CONTENTS

SPECIFICATIONS …………………………………………………….3

DETAILED SPECIFICATIONS …………………….…………………4

CONTROLS and CONNECTIONS …………………….….…………6

OPERATION………………………..……………………….…………10

MECHANICAL/PACKAGING PARTS LIST…………………………11

EXPLODED VIEW of INTERMEZZO 1.2s …………………………12

PACKAGING …………………………….………………………….…13

TEST SET UP AND PROCEDURE …………………………………14

BULLETIN INF2001-04…………………………………….…………15

IM 1.2s ADJUST BIAS PROCEDURE………………………………17

ELECTRICAL PARTS LIST ……………………………….…………18

PRINTED CIRCUIT BOARD DIAGRAMS………………..…………27

INTEGRATED CIRCUIT DIAGRAMS ………………………………34

SCHEMATICS…………………………………………………………35

INTERMEZZO 1.2s

Specifications

Frequency Response: 23Hz - 130Hz (±3dB)

30Hz - 130Hz (±1.5dB)

Subwoofer Amplifier Output: 850 watts continuous

(In to 89from 20Hz-100Hz with no

more than 0.1% THD)

2,600 watts peak

2nd- and 3rd- Order Harmonic Distortion: <1%

(20Hz - 130Hz, @ 95dB SPL)

Crossover Frequencies: 50Hz - 130Hz (continuously variable)

24dB/Octave

Dimensions (H x W x D): 15-1/4” x 18-1/4” x 13-3/4”

(387mm x 464mm x 349mm)

Weight: 60 lb (27.3kg)

Infinity continually strives to update and improve existing products, as well as create new ones. The

specifications and construction details in this and related Infinity publications are therefore subject to

change without notice.

Detailed Specifications

INTERMEZZO 1.2s

Detailed Specifications (Cont.)

INTERMEZZO 1.2s

Controls and Connections

INTERMEZZO 1.2s

Controls and Connections (Cont.)

INTERMEZZO 1.2s

Controls and Connections (Cont.)

INTERMEZZO 1.2s

Controls and Connections (Cont.)

INTERMEZZO 1.2s

Operation

The operation of the Intermezzo1.2s subwoofer with regards to the proper settings for the Room Adaptive Bass

Optimization System, or R.A.B.O.S., is thoroughly covered in the Owner’s guide, part# 336204-001. For service

purposes, the R.A.B.O.S. system is canceled when all three front panel controls (F) (L) (W) are turned fully

Clockwise. The only other control of concern is the Main Level Control on the front panel, which is a traditional

potentiometer.

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