Integrated HiFi restoration


Taking a little break from the valve world, this wonderfully sounding SANSUI AU-7700 came in for recapping and restoration work.

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Capacitors by Nichicon from the ‘Gold Tune’ and ‘Muse’ series were ordered and  installed, replacing the old ones that were giving breath to the amplifier since the mid-70s.

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The broken Headphones jack was replaced with an Amphenol stereo jack, and a three-prong power cord was also installed grounding the chassis, conforming to modern Safety Regulations and protecting the user in the rare case a live component should touch the chassis.

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After putting the unit back together, it was then tested with a pair of Wharfedale Diamond 225s filling the room with jaw-dropping depth, fidelity and dynamics! One can only imagine the quality and dynamics after the caps are properly broken-in.

Needless to say, this is one unit that has been an example since its release back in the Seventies, where even nowadays it is being used as a reference in recording studios. 

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