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Audio Schematics, PCB, Electronic Kits

Listed below are schematic for audio circuits. Click on the name to view the schematic.

Here's a Protel format (version 2.5 or 2.7.1) files of many car audio circuits PCBs that I made over this time. Click your right mouse, and choose "save target as" to save the file. 

12V Differential Preamplifier 4ch Power Amplifier
AXL Bipolar Car Amplifier 2ch Sub Power Amplifier 1
50A 12V to 14.4V Boost Converter 2ch Sub Power Amplifier + LP
25A 12V to 14.4V Boost Converter Tube Preamplifier + SMPS
Car Preamplifier + SMPS 12V Tube Xover 1
AXL Mosfet Car Amplifier 12V Tube Xover 2
Tube Preamplifier 12V Tube Xover 2 + SMPS
+Vcc/-Vcc SMPS 1 12V Tube Xover 4ch + SMPS
+Vcc/-Vcc SMPS 2 (SPL) 12V Tube Xover 3 + SMPS
+Vcc/-Vcc SMPS 3 12V Tube Xover 2 + remote vol
+Vcc/-Vcc SMPS 4 14.4V Boost Regulator
+Vcc/-Vcc SMPS 5 2ch Power Amplifier
Car Power Amplifier 1 6ch Power Amplifier
Car Power Amplifier 2 +/-70V Power Amplifier 2
Car Power Amplifier 3  +/-70V Mosfet Power Amplifier
Car Power Amplifier 4  + SMPS +/-70V Power Amplifier 1
High Current SPL Power Amplifier CLASS D SCHEMATIC (PDF)

PCBs....Note that all PCBs are mono unless for stereo it is noted by (ST)

NAME

PCB (US$) KIT (US$)
400W POWER AMPLIFIER 5.00 55.00
200W POWER AMPLIFIER 4.00 25.00
SI RAKSASA BARU / PART 4.00 37.00
THE BIG VOLTUS / PART NA NA
NEW VOLTUS 100 3.00 15.00
MOSFET 50 AMPLIFIER 4.00 27.00
MOSFET 100 AMPLIFIER 3.00 23.00
MOSFET 115 AMPLIFIER 5.00 40.00
STK 4141 II 3.00 17.00
STK 4231 II 3.00 (ST) 25.00
CD TUBE BUFFER NA NA
ACTIVE CROSSOVER 4.00 20.00
STEREO TONE CONTROL 3.00 (ST) 17.00
PARAMETIC EQ 6.00 (ST) 40.00
TUBE PREAMPLIFIER 7.00 (2tb)/(3tb)/(ps) CALL
SPEAKER PROTECTOR 3.00 11.00
ACTIVE SUBWOOFER 3.00 15.00
LIPS +/-15 0.5A 3.00 15.00
SPECIAL LIPS 3.00 25.00
REGULATED PS PW 5.00 25.00 (W/O Di+Cap)
REGULATED PS +/-15  2.00 8.00
IC REGULATED PS 1.5-15V 3.00 10.00(5A), 15.00(10A)
HEAD PREAMPLIFIER (ST) 15.00
+/-15V FROM 12V 1 2 NA NA
PA SMPS 12V TO +/-35v NA 70.00 (assembled)
PA SMPS 12V TO +/-47 NA 80.00 (assembled)

VARIOUS CAR AUDIO SCHEMATIC + PICTURES

Here's schematics contributed by car audio enthusiast. If you have something to share, please email us.

SCHEMATIC + PICTURES CONTRIBUTOR
SG3524 CAR SMPS Stephen McFadyen
svh1.JPG (57693 bytes)svh2.JPG (110014 bytes)svh3.JPG (108468 bytes) Shaun (South Africa) 
hu1.JPG (94744 bytes)hu2.JPG (103281 bytes) Benedek from Hungary in electronic contest
pwaxl3.JPG (141426 bytes) Shaun (South Africa). Nice work on pwaxl3.pcb
ssm1.JPG (23471 bytes)ssm2.JPG (55275 bytes)ssm3.JPG (21627 bytes)ssm4.JPG (74055 bytes) Sergio Sanchez Moreno from Spain
Shaun have finished pwaxl3.pcb. Truly state of the art.
ausie01.JPG (62703 bytes) Wes from Australia

ACCESSORIES

NAME PRICE
 ECC83 SYLVANIA  35.00
ECC82 SIEMENS 25.00
TUBE SOCKET 9PIN 3.00 / 4.00
TRANSFORMATOR 2X18V/0.5A 4.00
TRANSFORMATOR 2X32V/5A 16.00
TRANSFORMATOR 2X32V/10A 20.00
TRANSFORMATOR 2X35V/10A 26.00
TRANSFORMATOR 2X47V/10A 30.00
TRAFO R CORE 2X18V/0.5A 25.00
TRAFO R CORE 2X24V/0.5A 45.00
TRAFO R CORE 0-275V/0.1A + 0-15V/1A 45.00
TRAFO R CORE 2X35V/5A 160.00
HEATSINK 15CM 5.00
HEATSINK 20CM 6.00
HEATSINK 30CM 9.00
CAP 10.000UF/50V MARCON 8.00
CAP 10.000UF/80V MARCON 12.00
CAP 8.200UF/80V SANHWA 9.00
CAP 15.000UF/80V SANHWA 13.00
CAP 10.000UF/100V SANHWA 15.00
BOX TONE CONTROL 15.00
BOX PARAMETRIC 15.00
BOX PREAMP FLAT 15.00

email : lumanauw@bdg.centrin.net.id