Infinity IRS Beta Service manual

SPECIFICATIONS

REV A 9/98

INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797

IRS BETA

Technical Manual

IRS BETA

• Drivers (per channel):
— Woofers: Four 12”

Polypropylene/Graphite
— Mid Bass: 2 L-EMIMs
— Midrange: 1 EMIM
— Tweeters: 1 EMIM/front

1 EMIT/rear
— Super-Tweeters: 1 SEMIT
— Nominal Impedence: 4 Ohms

• Finish: Santos pau ferro

• Dimensions: (WxDxH) Woofer module:

16 1/2” x 14 1/2” x 64 3/4”

(41.91 x 36.83 x 164.47cm)

Mid/tweeter module:

17” x 1” x 64 3/4”

(43.18 x 2.54 x 164.47cm)

Base footprint:

18” x 17” (45.72 x 43.18cm)

• Weight: Woofer module:

140 lbs (63.64kg)

Mid/tweeter module:

75 lbs (34.09kg)

• Special Features: Monster cable

ARC wire

Solen caps

Wonder caps

• Frequency Response: 15Hz to 45KHz ±2 dB

• Crossover Frequencies: 100Hz, 750Hz, 4500Hz,10kHz

• Passive Crossover Controls: Super tweeter level

Tweeter level

Upper midrange level

• Electronic Crossover High pass filter

Controls: Low pass filter

Bass contour

Low freqency phase

Low frequency level

• Mid/Tweeter Amplifier 75-300 watts/ch RMS

REQUIREMENTS:

•Bass Amplifier Requirements: 150-500 watts/ch RMS

PRODUCTION HISTORY:

• Introduced in 1987

• Discontinued in 1992

• Original Retail Price: $11,950.00

PHYSICAL SPECIFICATIONS:

COSMETIC PARTS:
Grille Mid/Twt Front A025-3462
Grille Woofer Tower A025-3473
Grille Mid/Twt Rear A025-3666
Cover Plate Greeks .707-3719
Logo 2” Mobius .716-0340
Crossover Dust Cover .760-3556
Spiked Feet St 1/4 .846-3669
Foot 1 1/16” Metal .846-3671

CROSSOVER PARTS:
Crossover Assy. A015-3457
5-Way Binding Post .528-3551
Crossover Cup .653-3553
Circuit Brkr .85A-30 .871-3212
Servo Cable 50’ .639-4406
Servo Control Unit IF979900

DRIVERS (TRANSDUCERS)
Control Woofer A028-3582
EMIM Mid Rev D (Repair Only) .902-0012D
12” Woofer IMG .902-3054
L EMIM .902-3431
SEMIT Rectangle Blk .902-3465
EMIT Square Blk .902-3721
SEMIT Diaph .751-3221
EMIT Diap 1/2 LS .751-3722
EMIM Diaph Rev D .751-3806

IRS 5

TECHNICAL SPECIFICATIONS

REV A 7/98

INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797

IRS BETA

Technical Manual

IRS BETA

C1

2µF (W)

R1

10½ 10W

5

–

+

OUTPUT

–

.85A 30

2.5A 30

C2

.01µF (W)

C3

2µF (W)

C4

.01µF (W)

C7

4µF (W)

C8

.01µF (W)

C10

500µF (S)

C16

100µF (W)

C12

.01µF (W)

C15

150µF

C16

100µF (S)

C17

.01µF (W)

L.3

.6mH

.5mH

L8

7.5mH

L6

L2

.05mH

R3

4½ 10W

.2mH

C18

300µF

C19

100µF (S)

C20

.01µF (W)

L1

.2mF

C5

3µF (W)

C6

.01µF (W)

L5

.4mH

L4

.4mHR412½ 5W C9

L7

C13

20µF

L9

4mH

C21

35µF

C14

5µF (S)

R6

2½ 30W

2µF (S)

C22

5µF (S)

R2

5½ 5W

R5

5½ 5W

R7

5½ 30W

L10

3mH

1N5338B

(2)

1N5352B

(2)

REAR EMIT TWEETER

6

+

2

+

FRONT SEMIT TWEETER

1

–

4

+

FRONT SEMIT TWEETER

3

–

8

+

1 MIN MIDRANGE

–

7

10

+

L – EMIN MID/BASS

11

–

(W) – Wonder Capacitor
(s) – Solen Capacitor