Electronics Projects, 300W RMS High performance Power Amplifier article
"audio amplifier circuits, transistor amplifier, " tagged with
300W RMS power amplifier PCB drawing in the design of very high quality, very good but a complicated circuit layout + PCB drawing double-decker to be taken to the archive, though I don’t recommend it for beginners the value of the Operating voltage with symmetric +- 75v max. 80v overload, short circuit protection and preamfi (NE552 TL072 opamp or solid).
Power Amplifier circuit
note 300W power amplifier operates with a caution notice high voltage capacitor connections + – reverse polarity if you connect to the circuit line may be large explosions before running the insured electricity at high voltage,protective eye glasses
source: delta-audio.com (site kapatılmış) alternative link: 300w-rms-high-performance-power-amplifier.rar alternative link2