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Service manual
audio pro
SUB FOCUS
Powered Subwoofer
featuring
ace-bass
World patents:
Australia 508491
Great Britain 1565858
Canada 1083490
Sweden 7603585.6
T E C H N O L O G Y
USA 4.118.600
audio pro
Audio Pro AB. Box 1015. S-251 10 HELSINGBORG
SWEDEN
SUB FOCUS manual
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Summary of Contents for Audio Pro ace-bass SUB FOCUS
- Page 1 Powered Subwoofer featuring ace-bass World patents: Australia 508491 Great Britain 1565858 Canada 1083490 Sweden 7603585.6 T E C H N O L O G Y USA 4.118.600 audio pro Audio Pro AB. Box 1015. S-251 10 HELSINGBORG SWEDEN SUB FOCUS manual...
- Page 2 Technical data Sub Focus Enclosure: 400W ACE Bass powered, bass reflex. Drive units, Woofer: 10” long throw woofer Effective frequency range: 23-100 Hz Crossover -Lo Pass: 50-100 Hz, variable 24dB / octave High Pass: 100 Hz 6dB / octave Power requirements: AC 230V 50HZ Power consumption (max): 400W...
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Page 3: Important Note
Adjustment of negative output resistance in Sub Focus amplifier Set jumper “Set 1” on power amp pcb in Trim position. Connect a signal generator to input and an AC voltmeter to speaker output. Set level and frequency controls to maximum (fully clockwise) and switch amplifier on. Set signal generator to 40 Hz and adjust level until AC voltmeter on speaker output reads 1.00 V under no load condition. - Page 8 3&%. & 0 9&& & 0 $&( 9 5 5 N 5 9 4 4 %) & 4 4 & 0 ,& $ & & 7/ 5 5 & 5 9 ' 5 5 3 =' & 0 9 4...
- Page 9 & 3&% 0 . 5 5 . 4 6. & 0 5 5 5 . & 95 .$ 5 0 0 : & 5 . & 9 9 3&% 5 . 5 ,&% 5 ,& % . ,&$ 7/ ,&$ & &...
- Page 10 3&%. 5 & 5 4 %) 5 5 5 5 .: 4 5 . %) & =' 9: & & 5 0 5 0 ' 1 . 235(/$< ,& 5 7$3 63. 5 5 & 9 5...
- Page 11 Ref no Part no Description Qty Available Y/N Wrap board Front board Wrap board Inner box Brace board B1.35 B Woofer Screw 4x25, BA head 8 SOSP-01 Feet, soft spike BAD-02 ACE bass badge Bx port Bx tube Amplifier (see separate man.) GRI-07 Grille black for black / maple version GRI-46...
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Page 12: Specification
Parts list SUB FOCUS 230V/50HZ, B7 / 24dB REMARK PART NO DESCRIPTION SPECIFICATION SUB FOCUS AMP ASSY PANEL ADL-6S702 RED 5MMD Q211 ATR-2SC3421 2SC3421 Q205 ATR-2SC4793 2SC4793 Q206 ATR-2SA1837 2AS1837 Q207,Q209 ATR-2SC5200 2SC5200 Q208,210 ATR-2SA1943 2SA1943 RED (3mm) BAK PANEL JK1-L01-G7009C BINDING POST BAK PANEL... - Page 13 Parts list SUB FOCUS 230V/50HZ, B7 / 24dB REMARK PART NO DESCRIPTION SPECIFICATION SUB FOCUS PREAMP PCB IC101-105 AIC-TL072 IC DVAL OP AMP TL072 D101,102B ADD-IN4148*TAP DIODE SWITCH IN4148 52mm Q101 ATR-2SK363 2SK363 C105,115 ECD-050T470M CAP CER 50V 47P +-20% C107,108,110 ECM-100T104J CAP, MYLAR...
- Page 14 Parts list SUB FOCUS 230V/50HZ, B7 / 24dB REMARK PART NO DESCRIPTION SPECIFICATION SUB FOCUS AMP PCB IC201 AIC-TL071 TL071(TI) IC202 AIC-TL072 IC DVAL OP AMP TL072 R225,226 ERB-202K4R7J RES MO 2W K 4.7 +-5% H=10mm 5.0*16.0 R219,220,221,222 ERB-502KR22J-1 RES MO 5W K 0.22 +-5% H=10mm 8.5 *25.0 mm VR202 ERV-S06-501B01...
- Page 15 Parts list SUB FOCUS 230V/50HZ, B7 / 24dB REMARK PART NO DESCRIPTION SPECIFICATION R205,206 ERB-251Y391J RES MO 1/4W Y 390 +-5% R246 ERC-251Y153J RES CF 1/4W Y 15K +-5% ERC-251Y152J R223,224 RES, 1K5 OHM 1/4W +-5% R202,203,231,232,233 ERC-121Y562J RES, 5K6 OHM 1/6W +/-5% R229 ERC-121Y333J...
- Page 16 Parts list SUB FOCUS 230V/50HZ, B7 / 24dB REMARK PART NO DESCRIPTION SPECIFICATION SUB FOCUS POWER SUPPLY PCB ADB-W02 D307,308 DIODE BRIDGE W02 1.5A/200V ADB-KBU6G D306 DIODE BRIDGE KBU6G 6A/400V ADD-IN4004*TAP52 D301,302,303,304,305 DIODE RECTI IN4004 TAPING 52mm ADZ-IN4749A ZD301 DIODE ZENER IN4749A 1W 24V AIC-KA7815 IC306,IC307...
- Page 17 Parts list SUB FOCUS 230V/50HZ, B7 / 24dB REMARK PART NO DESCRIPTION SPECIFICATION ERC-121Y123J R301,R318 RES, 12K OHM 1/6W +/-5% ERC-121Y333J R312 RES, 33K OHM 1/6W +/-5% ERC-121Y473J R302,305,309,328 RES, 47K OHM 1/6W +/-5% ERC-121Y563J R303,314 RES, 56K OHM 1/6W +/-5% ERC-121Y183J R322,325 RES CF...
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