Infinity Beta 50 Manuel utilisateur

ACOUSTIC & ELECTRICAL SPECIFICATIONS:

• Nominal Impedance 8Ω

• Max Amp Power 250 watts*

• Frequency Response 35Hz – 20kHz (±3dB)

30Hz – 40kHz (–6dB)

• Sensitivity 91dB (2.83V @ 1 meter)

• Crossover Frequencies 600Hz, 3.3kHz; 18dB/Octave

woofer; 12dB/octave mid/twt

SYSTEM COMPONENTS:

• Cabinet Beta 50 (Not for Sale)

• Grille Black (for BLK) 351605-003

Grille Gray (for BE & CH) 351605-004

• Low-Frequency Transducer Dual 8" (200mm) CMMD,

™

magnetically shielded

351509-001

DC Resistance 7.9 ohms ±10%

• Mid-Frequency Transducer 5" (130mm) CMMD,

™

magnetically shielded

338568-001

DC Resistance 4.4 ohms ±10%

• High-Frequency Transducer 1" (25mm) CMMD,

™

magnetically shielded

351572-001

DC Resistance 3.5 ohms ±10%

• Crossover Network 351604-001

AURAL SWEEP TEST SPECIFICATIONS:

• System Aural Sweep Test 6.0V Input 30Hz to 20kHz

• L.F. Aural Sweep Test 5.0V Input 30Hz to 1kHz

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

• H.F. Aural Sweep Test 2.83V Input 3kHz to 20kHz

PHYSICAL SPECIFICATIONS:

• Dimensions 41-5/16" x 10-7/16" x 14-11/16"

(H x W x D) (1050mm x 265mm x 372mm)

• Weight 62.5 lb (28.4kg) Each

WARRANTY:

• Refer to Warranty Statement packed with each product.

* The maximum recommended amplifier power rating will ensure

proper system headroom to allow for occasional peaks. We do not

recommend sustained operation at these maximum power levels.

Beta 50

Infinity Systems, 250 Crossways Park Drive, Woodbury, New York 11797

Rev 1 8/04

23 25

Legend on Page 2

INPUT

L.F.

68uf

100V

2.7mH

0.5mH

—

RED

BLK

—

CROSSOVER

NETWORK

351604-001

HIGH-FREQUENCY

TRANSDUCER

351572-001

.250

.205

18.5" GRN

.250

18.5" GRN

.205

18.5" GRN/BLK

RED

BLK

—

GRN/BLK

GRN

—

GRN/BLK

GRN

—

WHT/BLK

WHT

YEL/BLK

YEL

LOW-FREQUENCY

TRANSDUCERS

351509-001

MF/HF

INPUT

0.1mH

0.72mH

H.F.

M.F.

18.5uf

100V

.68mH

.110

.205

—

.205

.250

27.5" WHT/BLK

27.5" WHT

29.5" YEL/BLK

29.5" YEL

4.3uf

100V

30uf

100V

MID-FREQUENCY

TRANSDUCER

338568-001

PACKAGING

BETA 50 WIRING DIAGRAM

BETA 50 SCHEMATIC

Technical Manual

Beta 50

8163

414

17113

1510

Beta 50 Cabinet – Not for Sale

Beta 50

EXPLODED VIEW

Infinity Systems, 250 Crossways Park Drive, Woodbury, New York 11797

Rev 1 8/04

ITEM

NO. DESCRIPTION QTY. PART NO.

1. Woofer, BT165JWS 2 351509-001

2. Midrange, BT130HMS 1 338568-001

3. Tweeter 1 351572-001

4. Crossover Network 1 351604-001

5. Faceplate, Black (for BK) 1 351824-001

Faceplate, Gray (for BE & CH) 1 351824-002

6. Assy, Grille, Black (for BK) 1 351605-003

Assy, Grille, Gray (for BE & CH) 1 351605-004

7. Assy, Port Tube 1 351803-001

8. Gasket, Faceplate 1 351920-001

9. Trim Ring, Woofer 2 351653-001

10. Terminal Cup w/Binding Posts 1 351317-001

11. Cup, Grille (Black for BK) 8 333249-001

Cup, Grille (Gray for BE & CH) 8 333249-003

12. Screw (faceplate 2 top screws only) 2 907502-012

PB, FPH, #6 x .75"

13. Screw (twt faceplate btm, wfr 12 903802-016

trim rings) PB, HXS, #8 x 1" BE, CH;

same as above for BK model 12 72216

ITEM

NO. DESCRIPTION QTY. PART NO.

14. Screw (network, midrange) 8 63563

PB, OVHDPH, #6 x .75"

15. Screw (terminal cup) 4 61867

PB, PPH, #8 x .75" BLK

16. Screw (tweeter mounting) 2 905401-006

MS, PPH, H/L, 6-19 x .375"

17. Screw (woofer screws) 16 900101-012

PB, PPH, #8 x .75" BLK

18. Midrange Flower Pot, Plastic 1 334072-001

19. Rubber Foot, Blk, Assy 4 338037-002

20. Logo, Gold/Silver Infinity 1 351617-001

21. Carton-Beta50BK 1 352175-001

Carton-Beta50BE 1 352175-002

Carton-Beta50CH 1 352175-003

22. End Pad, Top & Bottom 2 352176-001

23. Spike Foot Set 1 338076-001

24. Owner’s Manual 1 352036-001

25. 5-Year Warranty Card, Infinity 1 335841-003

26. Shorting Straps 1 Set CS06-6

Technical Manual

Beta 50

TO SERVICE THE BETA 50

Remove the grille.

1. Tweeter/Midrange: Remove the (2) rubber grille retainers on the mid/twt faceplate; this can be accomplished by carefully pulling them out of

their cavities with long-nosed pliers or similar tool.

2. Remove the (2) Phillips screws that are now exposed.

3. Remove the (4) remaining Hex screws on the front faceplate.

4. Carefully separate the front faceplate, with tweeter attached, from the cabinet.

5. Woofer: Remove (4) trim ring screws; remove trim ring. Remove (8) remaining woofer screws.

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