Professional audio amplifier circuit diagrams ( 10 ) :

• Brystom Power Amplifiers Circuit Diagrams   
• Crest Audio LT Series LT100, LT1500 and LT2000 Schematic Set - A commercial Class D Amplifier, complete schematics in pdf format.   
• EC Schematics - interesting link about amplifier technology from ElectroCompaniet, the first design was taken directly from the paper by Otala and Lohstroh, AES 1973   
• Professional Sound Systems has full circuit diagrams of some of their PA amplifiers in their   
• QSC Audio has   
• Renkus-Heinz Schematics   

Other related documents

• A conceptually new high-frequency switched-mode power amplifier technique eliminates current ripple - Paper about Class D amplification, contains lots of background information.   
• Point to Point Versus PCB Amps - What's the difference?   
• Star Grounding in Tube Amplifiers   
• The Class-A Amplifier Site - Primarily dedicated to the John Linsley Hood Class-A amplifier designed in 1969 and updated in 1996. Copies of the original articles and additional design and construction information.   

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