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Based on three characteristics: good quality sound, easy to make, and not expensive circuit, this TOSHIBA DX is worth to try. Just need 36VDC voltage input as a fuel, the circuit can produce 100W output on 40 Ohm speaker or 50W on 80 Ohm, using a pair of TOSHIBA A1943 – C5200 per channel.

This circuit possible to deliver about 200W power output produce by Phillips Semiconductor. Using 2 PHP1BN11QT, input voltage between 30 and 45 VoltsDC for this circuit, trigger the 4Ω impedance load speaker in to a powerful audio output. Other features of this circuit are THD+N (total harmonic distortion-plus-noise) PL = 10 W frequency range from [...]

This 400 W MOSFET Audio Amplifier using IRFP448 circuit is simple project. With low noise and distortion, but powerful. As the fuel, this project consume 70-80 Vdc and 5 A fuse as the protector for short circuit.

Very small amplifier witch can provide 7W/4Ohm output. This circuit, although have small output, but capable to produce output with low total harmonic and cross-over distortion and work at 20Hz to 20kHz. The circuit using IC TDA2003 as main component.

This simple, direct but jagged circuit, aim for any high quality audio application like Guitar or Bass amplifier. Using a mains transformer with a secondary winding rated at the common value of 25 + 25V (or 24 + 24V) and 100/120VA power, two amplifiers can be driven at 45W and 69W output power into 8 [...]

Can be a standalone or teamed with Pre-Amp, this circuit show us a high-class headphone amplifier. With low distortion and noise, its seat drive low or high impedance to max power levels. Need only a power supply and a volume control pot for apply among any line-level signal source, and featured dual output.

High-performance amplifier. Ultra low distortion but high voltage DC while operated. Using two on-board 6.5A fuses, just cause this circuit is capable of delivering around 300W of music power into 4Ω, each fuse carries around 4.4A RMS or higher.

Based on three characteristics: good quality sound, easy to make, and not expensive circuit, this TOSHIBA DX is worth to try. Just need 36VDC voltage input as a fuel, the circuit can produce 100W output on 40 Ohm speaker or 50W on 80 Ohm, using a pair of TOSHIBA A1943 – C5200 per channel.