Audio circuits to build
The following links to circuit diagrams and building projects I have found from other web sites. I have tested only very few of them so there is no guaratee that those circuit will work as expected. I don't have more info on those projects than what you can download from those sites which have the circuits. If you have more questions about those circuits then please mail the questions directly to the person who has designed the circuit or to the people responsible for those web pages.
Index
- Andrea's projects - circuits and documentation
- Audio circuit at Digital Music Zone - compressors, effects, preamps, microphones, phantom power
- Digital Music Zone Schematics - compressors, microphones and effects
- DIY Audio pages
Low power (<30W)
High power (>30W)
Professional audio amplifier circuit diagrams
Application notes and datasheets
- Cool Audio - Harris application note on PWM amplifiers
- LM12 - very compact IC for making good quality 80W audio amplifier, this IC has been used in some high quality active loudspakers
Input
Output
Input and output in same circuit
Other circuits
- Long Lines Driver - high current output configuration is ideal for use as a transformerless long lines driver
Circuits for helping to interface electronic music instruments to mixing desks.
The main goal of a DI Box is convert the usualy high impedance output of an
instrument (usualy a guitar pickup) in a low impedance ouput to feed a mic input
of a console. Balancing the signal is important if you want to use the mic input.
Ground isolation is a plus.
Filters and effects
S/PDIF
SCMS
DAC
Equipment modifications
Misc
Misc circuits
Module and kit reviews
Tomi Engdahl <tomi.engdahl@hut.fi>
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