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Good en helpfull black and white scanned Srfvice manual of the Philps D8444. Quick service and delivery
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Scan was really good quality, easy to read, download easy
;
very good manual as always. easy to read, detailed and includes schematic
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I'm very satisfied with your manual service. Your website made it easy to locate the correct manual. Also the quality is great and I never had a problem reading the fine details.
Thanks again.
Jeff Miller
JM Electronics
;
Good quality service manual German user manual. German user manual This is a quality scan of a manual in excellent condition and is just as good as having the original manual in hand
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
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