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Technics SU-V9

Stereo Integrated Amplifier (1981-85)

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Technics SU-V9


Power output: 120 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.003%

Damping factor: 80

Input sensitivity: 0.25mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 71dB (MC), 79dB (MM), 91dB (line)

Channel separation: 55dB (line)

Output: 150mV (line)

Speaker load impedance: 4Ω to 16Ω

Dimensions: 430 x 120 x 350mm

Weight: 14.7kg


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Reviewed Mar 27th, 2014 by hootiejohn

I've owned this amp for many years, some of those years it was in my attic! I have a Technics SL-D2 and fitted various headshell and cartridges to it. The sound is wonderful and it boasts a MM/MC input so no need for a separate booster! If you find one of these, buy it - it is a great amp from a few decades ago.



re: SU-V9

i purchased one of these new in the 80's for $920 and still have it today. Even though i was told it would not do the job I used it for many years in my disc jockey service to power 2 pairs of Sound Dynamics 1500 concert monitors and a 2 pair of Audio Sphere research 18L monitors(stacked SD on top of the AR). I ran it hard and long without it ever failing on me. The most that ever happened was the overload protection might activate if i was asking it to do more than it was designed to do, usually from trying to run a speaker load lower than 4ohms to maximize its power output. It surprised a lot of people to look at the grills of these speakers and see that you could visibly see the woofer rings from where they had been striking the grills. Unheard of from a mere 120 RMS per channel. I did eventually upgrade to Nikko beta 50 / Alpha 450 which i also still have. When i set up my surround system in my family room with the corners filled with the stacked AudioSphere 18L and SD 1500 I wasn't surprised that I could only find two new receivers capable of driving these they way i was used to was a Denon avr 3805(Dynamic power: 140 W x 2 ch (8 Ω/ohms)210 W x 2 ch (4 Ω/ohms)
240 W x 2 ch (2 Ω/ohms) and denon avr 4806( Dynamic Power (180 W x 2 ch (8 Ω/ohms))(280 W x 2 ch (4 Ω/ohms) )

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