stereofun
Super Member
Got this near mint specimen. It rolled off the assembly line in Dec 1969 as the 55th unit that month.
Step attenuated triple tone controls presented in a glorious six-pack of solid aluminum knobs with set-screws. No cost cutting!
Very similar design as the 555a, just beefier - cap coupled, of course.
Now this unit is stock, and has some issues. So any comparison to my mostly recapped gear would be a mistake, however after a thorough cleaning and a basic adjustment, I have an idea of where it fits in on the - in my opinion - quite different sonic spectrum in the line of Sansui.
It has the early sound sound for sure: Warmish, textured - and with a somewhat accentuated middle, then soft pleasant highs. It is similar to the Au-555a, but where the 555a is a little more punchy and highlights the lower mids more, the 777a goes deeper and softer in the bass and with accent higher up in the mid range. Separation and detail is a tad better in the 777a - which is to say impressive. Plenty headroom too. The perhaps best part is the amps ability to image and give depth to the sound-scape.
This is definitely a keeper and a candidate for a restoration- I cant resist this sixties design. It comes with a "I mean business and I am build to last" attitude with knobs and levers like a commercial airliner of its day.
Step attenuated triple tone controls presented in a glorious six-pack of solid aluminum knobs with set-screws. No cost cutting!
Very similar design as the 555a, just beefier - cap coupled, of course.
Now this unit is stock, and has some issues. So any comparison to my mostly recapped gear would be a mistake, however after a thorough cleaning and a basic adjustment, I have an idea of where it fits in on the - in my opinion - quite different sonic spectrum in the line of Sansui.
It has the early sound sound for sure: Warmish, textured - and with a somewhat accentuated middle, then soft pleasant highs. It is similar to the Au-555a, but where the 555a is a little more punchy and highlights the lower mids more, the 777a goes deeper and softer in the bass and with accent higher up in the mid range. Separation and detail is a tad better in the 777a - which is to say impressive. Plenty headroom too. The perhaps best part is the amps ability to image and give depth to the sound-scape.
This is definitely a keeper and a candidate for a restoration- I cant resist this sixties design. It comes with a "I mean business and I am build to last" attitude with knobs and levers like a commercial airliner of its day.
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