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Sansui 7070

AM/FM Stereo Receiver (1976-78)

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Sansui 7070

Description

The Sansui 7070 is an advanced electronic design in the medium-power/medium-price range.

It has 65 watts, both channels driven into 8 ohms at 1000Hz, giving you adequate power to drive two sets of full-size speaker systems.

Features include a highly sensitive MOS FET FM front-end and a Dolby FM adaptor terminal.

Specifications

Tuning range: FM, MW

Power output: 60 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 30kHz

Total harmonic distortion: 0.3%

Damping factor: 45

Input sensitivity: 2.5mV (mic), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 70dB (MM), 80dB (line)

Channel separation: 50dB (MM), 50dB (line)

Output: 150mV (line), 30mV (DIN)

Speaker load impedance: 4Ω to 8Ω

Dimensions: 502 x 156 x 371mm

Weight: 16.6kg

Year: 1976

Downloads

service manual   English -

instruction/owners manual   English Deutsch Francais -

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Reviews

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rating
Reviewed Nov 26th, 2016 by txjazzman

I remember back in 1976 a friend of mine and I were looking in Hi Fidelity magazine and he saw the Sansui 7070 and loved it so much that he purchased one the next week. I could not afford one at that time. Fast forward to 2009 I found a one owner on Craigslist for 75.00 for the 7070 and Sansui FR 5080 turntable. I love it ! Running it through Cerwin Vega VS 120's.

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Reviewed Sep 22nd, 2015 by erik6485

I've this unit now for almost 25 years. It originally came with a pear of Sony Bowers & Wilkins SS-1005 speakers, which were thumpy. The unit now gives all its best through a pair of Wharfedale Diamond 10.1, which to my taste is a perfect match ... it's a wonderful machine !

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Reviewed Feb 24th, 2014 by jeanluc

I have been given a Sansui 7070 with a defective power section (caused by a short-circuit on the output). I have replaced numerous fuse-resistors and the power transistors (with equivalents, not original parts) but it still does not work! Any suggestions, previous experience, comments? As well, the service manual does not show the voltages at the test points (too dark). Do anybody have a better copy? Thanks!
PS: I have listened to this unit when it was still functioning and it was clearly an exceptional amplifier (for the time). I'd love to resuscitate it!

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Reviewed Apr 14th, 2013 by RGV0299

LO TENGO A UN MAGNIFICO

 

Comments

_Belo_'s picture

Dial lamps 7070

Does anyone know which are the correct replacement lamps for the dial and meters?

7070 Speaker Impedance

I love my 7070---and it sounds lovely through my AR4x speakers. But there is a pair of ADS L420 available locally---but they are 4 ohm speakers---anybody have an opinion about running a Sansui 7070 through 4 ohm speakers? Thanks.

re: 7070 Speaker Impedance

Hi, the owner's manual states that you can use 4 ohm speakers. Just don't run them at the same time with another set of speakers as that could cause the impedance to drop too low. In other words, if you have 2 pair of speakers hooked up, one to the A outputs and one to the B outputs, don't run them in A + B at the same time, just run the ADS by themselves. The only way you can run 2 sets of speakers at the same time is if they are both 8 ohms. I hope this helps.

This website is not affiliated with or sponsored by Sansui. To purchase 7070 spares or accessories, please contact the company via their website or visit an authorised retailer.