Super Servo Operation Integrated Stereo Amplifier (1980-81)
Power output: 110 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 50kHz
Total harmonic distortion: 0.01%
Damping factor: 50
Input sensitivity: 0.25mV (MC), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 68dB (MC), 78dB (MM), 90dB (line)
Output: 150mV (line), 1.5V (Pre out)
Speaker load impedance: 4Ω to 16Ω
Semiconductors: 8 x FET, 74 x transistors, 41 x diodes, 6 x IC
Dimensions: 418 x 155 x 410mm
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Reviewed Aug 19th, 2015 by Roybos
We fell in love with this machine many years ago with my dad. We were looking for a decent amplifier to upgrade from an ageing B&O receiver. Onkyo was one of the market leaders in integrated amps in the 80's and when we saw this monster it was love at first sight. Very smooth sounding, you could listen for hours on end without any fatigue whatsoever. Power was never an issue and in terms of quality, well consider this - the amp was purchased new, used with AR speakers and then the glorius Infinity RS2.5's. Yes thats correct, a speaker usually only used with high power / high current pre/power amp combinations. The Onkyo never struggled and still today drives those Infinities in a big way. Yep, thirty years in service and still going strong. I have had a lot of equipment pass through my hands from very high end manufacturers -this Onkyo has stood the test of time and must be one of their finest units ever.
Reviewed Nov 01st, 2012 by Smoke Screen
The 7090 is way more sophisticated build than his
little brothers 7070 and 7040. True double mono
powersupply for the poweramps. Discrete build
good phono-MM-stages but rather simple MC
inputstage. Solid build and good sounding
powerfull integrated amp.