Infinity Beta 50 Manual de usuario
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
22
22
6
21
24
Legend on Page 2
LF
INPUT
L.F.
C1
68uf
100V
L1
2.7mH
L2
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
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
L5
0.1mH
L4
0.72mH
H.F.
M.F.
C3
18.5uf
100V
L3
.68mH
.110
.205
+
—
.205
.250
27.5" WHT/BLK
27.5" WHT
29.5" YEL/BLK
29.5" YEL
C4
4.3uf
100V
C2
30uf
100V
MID-FREQUENCY
TRANSDUCER
338568-001
PACKAGING
BETA 50 WIRING DIAGRAM
BETA 50 SCHEMATIC
Technical Manual
Beta 50
8163
7
26
414
18
14
2
12
5
11
9
6
20
17113
19
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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