Infinity IRS Sigma User manual

30" x 30"

PLASTIC SHEET

955-7224

WARRANTY

(5/1) CARD

940-7670

IRS SIGMA,

OWNERS MANUAL,

930-7400

SETUP

INSERT SHT

930-7948

FOAM, TOP

951-7057

FOAM,

BOTTOM

951-7058

00202

CLOTH

SHEETING

990-7169 (2)

MICROFOAM

951-2830 (4)

CLOTH

SHEETING

990-7169 (2)

MICROFOAM

951-2830 (4)

IRS SIGMA CARTON

946-7369

Technical Manual

IRS Sigma

Infinity Systems, Inc. 250 Crossways Park Dr., Woodbury, New York 797 07/00

SR2

1.0 ohms

5 WATTS

SR1

1.1O ohms

5 WATTS

SW1 +

FLAT

SR4

1.20 ohms

5 WATTS

SR6

1.10 ohms

5 WATTS

SR3

1.20 ohms

5 WATTS

SR5

1.10 ohms

5 WATTS

SW2 FLAT

SR7

1.00 ohm

15 WATTS

SW3A +

SW3B +

-B

Mid/Twt PCB

MIDBASS

WOOFER

SECTION

00203

HIGH

FREQUENCY

INPUT

ACOUSTIC & ELECTRICAL SPECIFICATIONS:

lNominal Impedance: 49

lMax Amp Power 500 watts*

lFrequency Response 30 Hz - 42,000Hz (E2dB)

lSensitivity: 87dB ( watt @ meter)

lCrossover Frequency: 60Hz, 600Hz, 3800Hz

SYSTEM COMPONENTS:

lCabinet IRS Sigma (Not for Sale)

lFront Grille, w/logo A026-7280

lLower Rear Grille A026-7354

lUpper Rear Grille A026-7086

lLow-Frequency Transducer: 2”(304mm) Woofer (902-7502),

330709-00

DC Resistance 3.7 ohms E0%

lMid-Bass Transducer: 6 /2”( 65mm)Mid-Bass Coupler

(902-7379)

DC Resistance 3.6 ohms E0%

lMid Frequency Transducer: Neodymium Emim

(902-5339A)

DC Resistance 3.7 ohms E0%

lHigh-Frequency Transducer (2): Emit-B Neodymium

(902-5228)

DC Resistance 3.9 ohms E0%

lCrossover Network Input Assembly (A0 7-7399)

Woofer Network/Board (A0 5-7398)

Mid-Bass PCB (A020-7397)

Tweeter/Midrange PCB (A020-7396)

AURAL SWEEP TEST SPECIFICATIONS:

lSystem Aural Sweep Test 6.0V Input 30 Hz to 42 kHz

lL.F. Aural Sweep Test 6.0V Input 30 Hz to 500 Hz

lM.B. Aural Sweep Test 5.0V Input 00 Hz to kHz

lM.F. Aural Sweep Test 4.0V Input 500 Hz to 4 kHz

lH.F. Aural Sweep Test 2.83V Input 3 kHz to 42 kHz

PHYSICAL SPECIFICATIONS:

lEnclosure dimensions: 58 /4” x 8 /2” x 6- /4” (H x W x D)

( 422 x 457 x 406mm)

lWeight 95 lbs (88.6 kg) Each

WARRANTY:

lRefer to Warranty Statement packed with each product.

* The maximum recommended amplifier power rating will ensure prop-

er system headroom to allow for occasional peaks. We do not recom-

mend sustained operation at these maximum power levels.

PACKING SWITCHBOARD PCB

SCHEMATIC

IRS Sigma

Technical Manual

IRS Sigma

Infinity Systems, Inc. 250 Crossways Park Dr., Woodbury, New York 797 07/00

40"BLK

40"RED

TR1

6.8 ohms

5 WATTS

TR2

6.8 ohms

5 WATTS

TC1

1.8 uF

POLYP

TC2

1.8 uF

POLYP

TL1

0.15 mH

TC3

5.1 uF

POLYP

TL2

1.36 mH

TR3

JUMPER

REV 1 +

H.F.

60" BLUE

62" GREEN

ML1

0.43 mH

MR2

0.91 ohms

5 WATTS

MR1

0.91 ohms

5 WATTS

MC2

16.0 uF

POLYP

MC1

16.0 uF

POLYP

ML2

0.45 mH

49" ORANGE

49" WHITE

M. F.

MC3

5.1 uF

POLYP

MC4

18.0 uF

100v

MC5

68.0 uF

POLYP ML3

0.10 mH

MC6

3.0 uF

POLYP

BC4

155.0 uF

100v

BC3

5.1 uF

POLYP

BC2

97.0 uF

100v

BR1

3.0 ohms

25 WATTS BL1

3.10 mH

BC1

5.1 uF

POLYP

BC7

2.0 uF

POLYP

BL2

2.00 mH

35" BROWN -

BC6

120.0 uF

100v BL3

1.00 mH 33" YELLOW

M.B.F.

BC5

5.1 uF

POLYP BC8

18.0 uF

100v

WC4

250.0 uF

100v

WC1

600.0 uF

100v

WL1

6.40 mH

WC3

700.0 uF

100v

40" RED

40" BLACK

WL3

15.0 mH

WC2

700.0 uF

100v

L.F.

WL2

3.50 mH

WR2

1.5 ohms

25 WATTS

WR1

3.6 ohms

50 WATTS

30" RED

35" GRAY

IRS Sigma

INPUT ASSY

A017-7399

WOOFER

NETWORK/BOARD

A017-7398

HIGH

FREQUENCY

TRANSDUCER'S

902-5228

MID-BASS

TRANSDUCER

902-7379

MID

FREQUENCY

TRANSDUCER

902-5339A

WHITE

ORANGE

GRAY

RED

00204

MIDRANGE/TWEETER PCB SCHEMATIC

MIDBASS PCB SCHEMATIC

WOOFER BOARD SCHEMATIC

Input From

Switchboard

Input From

Switchboard

16" BLUE

16" GREEN

16" WHITE

16" ORANGE

Input From

Switchboard

16" YELLOW

16" BROWN

25" RED

25" BLACK

Input From

Switchboard

TR3 1.0 ohms

5.0 Watts

REV 0

TO SWITCH

BOARD

MIDBASS

NETWORK

A020-7397 MID/TWT

NETWORK

A020-7396

RED

BLACK

ORANGE

WHITE

GREEN

BLUE

BROWN

YELLOW

BROWN

GREEN

BLUE

LOW FREQUENCY

TRANSDUCER

902-7502

FRONT

REAR

FRONT

TWEETER

REAR

TWEETER

8.0 ohms

5 WATTS

IRS Sigma

WIRING DIAGRAM

Infinity Systems, Inc. 250 Crossways Park Dr., Woodbury, New York 797

07/00

IRS SIGMA

CABNET ENCLOSURE

(NOT FOR SALE)

RISER PAD

EMIT-B,

TWEETER

902-5228

8-32 x 1" FSCH

800-7054 (4)

EMIM, MIDRANGE

902-5339A

8-32 x 1" FSCH

800-7054 (4)

6 1/2" MID-BASS

902-7379

FOAM, TOP

878-7850 (2)

DACRON (50 gms)

GRILLE ASSY WITH LOGO

A026-7280

10-32 x 1" PPH

800-6966 (8)

12" WOOFER

902-7502

10-32 x 1" PPH

800-6966 (4)

FIBERGLASS,

MIDDLE

FIBERGLASS,

REAR

FIBERGLASS,

TOP/BOTTOM

FIBERGLASS,

UPPER

FOAM,

WRAP

LOCKING RING

846-7352 (4)

SPIKED FOOT

846-6929 (4)

WOOFER BOARD ASSY

A015-7398

SPIKED FOOT COVER

760-7048 (4)

RED - 25"

(L.F. INPUT TERMINAL (+))

RED - 40"

(WOOFER)

RED - 30"

(SW3)

BLK - 25"

(LF. INPUT TERM. (-))

BLK - 40"

(WOOFER)

GRAY - 35"

(SW3)

8-32 x 1 1/4 FSCH

800-6968 (7)

INPUT ASSY

A017-7399

BINDING POST (2)

(RED, R.H. SIDE)

528-7338

BINDING POST (2)

(WHITE, L.H. SIDE)

528-7339 8-32 x 1/2" BSOH

800-4667 (4)

SHORTING

STRAPS (2)

539-7633

SOUND DAMPING

COVER PLATE

712-7343

8-32 x 5/8" FSCH

800-7681 (4)

THUMB SCREW

809-6970 (4)

#8 NYLON WASHER

822-7125 (4)

PLUG

8-32 x 1" FSCH

800-7054 (4)

DIAPER

EMIT-B, TWEETER

902-5228

TAPE,

2 SIDED

GRILLE,

REAR UPPER

026-7086

GRILLE,

REAR LOWER

A026-7354

FOAM, TOP

878-7846 FOAM,

TOP (R.H.)

878-7849

FOAM,

UPPER REAR

878-7847

FOAM,

TOP (L.H.)

878-7848

FOAM,

BOTTOM

878-7850

00200

MID/TWT

NETWORK

A020-7396

MIDBASS

NETWORK

A020-7397

Technical Manual

IRS Sigma

EXPLODED VIEW

IRS Sigma

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