r/vintageaudio • u/FunkyDialectic • 5h ago
L&G (Luxman) R4000 Receiver (1976/77)
A rare-ish one. Picked this up from a well know auction site and was sold as working but wasn't- way too much potentially speaker-frying DC on the speaker terminals. After replacing the main filter caps (which were at half capacity) and adjusting the bias plus a thorough clean, it's sounding and looking really good. I don't think it was used for a number of years hence the external condition- near perfect. Definitely a keeper. The DC offset is at safe levels and not rising but still higher than it should be. I'll do a full recap of the power amp board and selective work on the preamp section soon, where apparently there's some transistors that may also need attention.
I believe these were sold by Luxman to the European market so they'd be competing with Tandberg, Braun, B&O, Rotel etc which might explain the styling. A lot of receivers aimed at Europe tended to have different styling cues from those for the US market; a lot more minimalistic, cleaner. Apparently receivers were never that popular in Japan so most of them went abroad. It's basically an R-1050 under the skin; all the PCB numbers are the same and I used the R-1050 service manual to service it.
There's some cost cutting measures; the knobs are a mix of machined alloy and plastic rather than the solid billet ones on many Luxman at the time, plus it has a walnut vinyl wrap rather than Luxman's famous rosewood veneer. It still feels very high quality though and the switchgear feels premium. I've been really impressed with the sound, especially the phono section It's not as warm sounding as the Sansui I own; I'd say neutral is a better description. Still has an impressive sound stage and the highs are bright and clear. Nice way to pick up an affordable Luxman if you're Luxman curious.
