Technical Manual
IRS DELTA/ GAMMA
SPECIFICATIONS
Four 12”
2 L-EMIMs
1 EMIM
1 EMIM/front
1 SEMIT
4 Ohms
Santos pau ferro 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) Woofer module:
140 lbs (63.64kg) Mid/tweeter module: 75 lbs (34.09kg) Monster cable
ARC wire Solen caps Wonder caps
15Hz to 45KHz ±2 dB 100Hz, 750Hz, 4500Hz,10kHz Super tweeter level
Tweeter level
Upper midrange level
• Electronic Crossover Controls: High pass filter
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Low pass filter |
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Bass contour |
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Low freqency phase |
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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: |
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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: |
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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) |
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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 5DELTA–GAMMA
REV A 9/98 |
INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797 |
Technical Manual |
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IRS DELTA/ |
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GAMMA |
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TECHNICAL SPECIFICATIONS |
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C1 |
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3µF |
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R1 |
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6½ 10W |
– |
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25 |
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C2 |
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L1 |
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1N5343B |
REAR EMIT TWEETER |
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.01µF |
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.2mH |
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(2) |
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26 |
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C3 |
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C5 |
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2µF |
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3µF |
R2 |
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.85A 30 |
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5½ 5W |
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22 |
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C4 |
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L2 |
C6 |
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FRONT SEMIT TWEETER |
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.01µF |
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.05mH |
.01µF |
1N5338B |
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(2) |
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21 |
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C7 |
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R3 |
4µF |
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L5 |
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R4 |
R5 |
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.5½ 10W |
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.4mH |
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+ |
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4½ 10W |
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5½ 5W |
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24 |
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MID/HI – FREQ |
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C8 |
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L.3 |
C9 |
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FRONT EMIT TWEETER |
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.01µF |
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.3mH |
3µF |
1N5343B |
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INPUTS |
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(2) |
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– |
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23 |
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C10 |
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45µF |
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L6 |
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R6 |
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2.5A 30 |
C11 |
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.15mH |
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5½ 30W |
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28 |
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5µF |
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L5 |
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C13 |
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EMIN MIDRANGE |
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C12 |
.5mH |
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25µF |
1N5352B |
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(2) |
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.01µF |
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– |
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27 |
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C14 |
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C16 |
L8 |
L9 |
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250µF |
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400µF |
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2mH |
1mH |
R7 |
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5½ 50W |
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30 |
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C15 |
L7 |
C17 |
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C18 |
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L – EMIN MID/BASS |
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100µF |
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60µF |
5mH |
100µF |
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1N5343B |
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(2) |
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29 |
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L10 |
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SW1 |
C19 |
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6.5mH |
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2000µF |
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L11 |
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34 |
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SW2 |
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LOW–FREQ |
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15mH |
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C20 |
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R8 |
WOOFERS |
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INPUTS |
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250µF |
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1½ 50W |
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31 |
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IRS DELTA–GAMMA
REV A 7/98 |
INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797 |
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