New valve amp just arrived

[Lawrence001]

Anyone heard the Audioromy M828A amp? It uses a pair of FU29/GU29 dual tetrode power valves in a push/pull configuration for 30wpc. I've never heard such grip from a budget valve amp before. https://uploads.tapatalk-cdn.com/20180925/9cbe5fdd42b93dd0922d47acfe1a1da4.jpghttps://uploads.tapatalk-cdn.com/20180925/23eb7377f10ffb361f874607bf2c0a8c.jpg

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[struth]

Used to have one. Decent sound from it

[montesquieu]

It’s been around quite a few years. I believe there are some mods documented for it somewhere.

[Lawrence001]

I suspect it could benefit from a better pot, can't imagine there's a decent one at the price it sells for. My main concern though is how to bias it I have to investigate further but it involves going from underneath, rather tricky considering you have to keep the speakers attached...

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[Primalsea]

I’ve never heard one of these, but it certainly looks the part. Some of the Chinese gear that flooded the market is/was surprisingly good and reliable!

TBF some wasn’t, but some was.

[Ali Tait]

Used to have the 813 version, was a decent amp.

[struth]

one thing is it may be a 220v tranny so make the valves glow a bit.

[Ali Tait]

Yes that’s an issue with these unless it’s been changed in the newer ones.

[struth]

Looking again at the pic i looks like the valves are being overdriven.. a variac or a bucking tx will sort it. The latter probably the cheapest option

[snowman_al]

Did you find this regarding bias setting? http://195.84.101.101/~goranl/projects/nad_stereo/audioromy_fu29/Adjusting_BIAS_on_AUDIOROMY_FU29.pdf

+1 to use a bucking transformer.

[Zoidburg]

Good little amp that, I had one for about 18 months, at the time I found it far more enjoyable than the roksan amp I also owned.

[Idlewithnodrive]

If that's Nick's old one, it will have been sorted (I think he replaced the volume pot) and be safe, too.