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Yamaha A-720

Stereo Integrated Amplifier (1985-86)

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Yamaha A-720


Power output: 105 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.005%

Damping factor: 45

Input sensitivity: 0.16mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 76dB (MC), 92dB (MM), 106dB (line)

Channel separation: 70dB (MM), 65dB (line)

Output: 150mV (line)

Dimensions: 435 x 147 x 399mm

Weight: 10.2kg


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Reviewed Feb 01st, 2020 by

Absolutely superb Amplifier. Only negative is the front input selector switches are weak and will break down. I purchased new in 1983. Still works great. Had to modify to use the record out selector as an input selector. Tried to replace it with a newer Yamaha and Harmon Kardon and neither could come close.

Reviewed Dec 24th, 2019 by

Thank you. A superb Amplifier. It was only the headphone circuit that failed. A truly awesome Amp.

Reviewed Sep 25th, 2019 by

j'ai déja son petit frère, le A520
j'ai entièrement refait ces 2 amplis, avec des switchs en facade neufs (très compliqué à dénicher !), relais et full recap en nichicon fine gold, trim ajustable multitours pour régler le bias
un détail important : j'ai installé des transistors de puissances Sanken et non Toshiba ;)
étonnamment le A520 sonne mieux que le A720 qui lui sonne un peu plus froid mais j'ai l'impression qu'il manque encore du rodage..
dans tous les cas ils sonnent très clair et musical en même temps c'est assez dégraissé dans le bas du spectre aussi mais quel plaisir d'écoute, rien à voir avec les Yam d'aujourd'hui

Reviewed Aug 01st, 2019 by

very high quality sound. a warm sound
very natural



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