HARMAN KARDON BETA50
Manual de Servicio

Technical Manual

Beta 50
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 � Grille Black (for BLK) Grille Gray (for BE & CH) � Low-Frequency Transducer 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.

DC Resistance � Mid-Frequency Transducer

DC Resistance � High-Frequency Transducer

DC Resistance � Crossover Network

Beta 50 (Not for Sale) 351605-003 351605-004 Dual 8" (200mm) CMMD, � magnetically shielded 351509-001 7.9 ohms ±10% 5" (130mm) CMMD, � magnetically shielded 338568-001 4.4 ohms ±10% 1" (25mm) CMMD, � magnetically shielded 351572-001 3.5 ohms ±10% 351604-001

YEL +

BETA 50 WIRING DIAGRAM
HIGH-FREQUENCY TRANSDUCER 351572-001
+

PACKAGING
23 24 25 22

�

YEL/BLK
MID-FREQUENCY TRANSDUCER 338568-001

WHT/BLK �

WHT

GRN +
� BLK + RED � BLK + RED

LOW-FREQUENCY TRANSDUCERS 351509-001
�

GRN/BLK

GRN + CROSSOVER NETWORK 351604-001 GRN/BLK
�

6

BETA 50 SCHEMATIC
+
L1 2.7mH C1 68uf 100V L2 0.5mH 18.5" GRN 18.5" GRN 18.5" GRN/BLK

.250

22

LF INPUT

L.F.
.205

�

18.5" GRN/BLK

.205 .205

21

+
MF/HF INPUT
�

C2 30uf 100V

L3 .68mH

27.5" WHT/BLK C3 18.5uf 100V L4 0.72mH 27.5" WHT 29.5" YEL/BLK

M.F.
.250 .110

Legend on Page 2

C4 4.3uf 100V

L5 0.1mH 29.5" YEL

H.F.
.205

Infinity Systems, 250 Crossways Park Drive, Woodbury, New York 11797
Rev 1 8/04

Beta 50

.250