Infinity IRS Gamma, IRS Delta Service manual
Technical Manual
IRS DELTA/
GAMMA
SPECIFICATIONS
REV A 9/98
INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797
IRS DELTA–GAMMA
• 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 Controls: High pass filter
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 .751-3813
IRS 5
TECHNICAL SPECIFICATIONS
REV A 7/98
INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797
IRS DELTA–GAMMA
Technical Manual
IRS DELTA/
GAMMA
C1
3µF
R1
6½ 10W
25
–
+
MID/HI – FREQ
INPUTS
–
.85A 30
2.5A 30
C2
.01µF
C3
2µF
C4
.01µF
R3
.5½ 10W
C10
45µF
C11
5µF
C12
.01µF
C7
4µF
C8
.01µF
L5
.5mH
L6
.15mH
L1
.2mH
L2
.05mH
L.3
.3mH
R4
4½ 10W
C5
3µF
C6
.01µF
L5
.4mH
C13
25µF
C9
3µF
R2
5½ 5W
R5
5½ 5W
R6
5½ 30W
1N5343B
(2)
1N5338B
(2)
1N5343B
(2)
1N5352B
(2)
REAR EMIT TWEETER
26
+
22
+
FRONT SEMIT TWEETER
21
–
+
24
FRONT EMIT TWEETER
–
23
28
+
EMIN MIDRANGE
–
27
+
LOW–FREQ
INPUTS
–
SW1
L7
5mH
L11
15mH
C16
400µF
C17
100µF
SW2
R8
1½ 50W
L8
2mH
C18
100µF
L10
6.5mH
L9
1mH
C20
250µF
R7
5½ 50W
1N5343B
(2)
30
+
L – EMIN MID/BASS
–
29
+
34
WOOFERS
31
–
C14
250µF
C15
60µF
C19
2000µF
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