Audio Aero Prima integrated Mk1. Just bought it

Lousey, sounds like you have the same amp as I have. Great amp all around. Go with the Mullard ECC88 gold pin tube. As Boa2 suggested, the VDH cord works great with the amp. If you can, get the Cardas posts, rcas and the Kimbar caps installed. This will also make a change for the better.
I also bought mine used about 3 years ago. I usually left it powered on on the mute select unless I knew I would be away for a couple of days or so. Leaving it on, with proper venting was never a problem. For a cheap tweek, mass load the top to reduce vibration and put some cones or 3 HRS feet underneath.
As Boa2 suggested, you can use this amp as a power amp, preamp or leave it as a int. amp. Happy listening.

Hi Eldelucesol, thanks for the advice. I'm pretty sure the Mullard that I put in there was gold pin. Also, I haven't done any mods on the amp, and I noticed that there are already Kimber Kaps installed. Could they have added that in a later production run?

What exactly is mass loading? Putting something heavy across the top?

Hi, I am really interested on this amp since I am considering buying it. I really appreciate all your comes since I am pretty new myself to the hi-fi world.

One question, I have been told that this amp has a very low Signal Noise To Ration (70db) - whatever that is... - How important is this feature? I checked other amps (i.e. Kora or Krell) and they seem to deliver higher SNRs. any thoughts? Thanks!

Krell and Audio Aero are at the two opposite ends of the audio spectrum. The Audio Aero is a hybrid tube amp, and the Krell is pure solid state. It really depends what you're looking for.

The Audio Aero's SN ratio isn't that high. But it doesn't bother me, not for a second. There are some, though, for whom it might be a deal breaker. It really just depends on your taste and your setup.

Personally, I don't like most of what Krell has to offer. It's too clinical for me. Some don't like what Audio Aero has to offer, because it's too euphonic, or too whatever. I've never heard Kora.

The Audio Aero is very, very musical, and at the price I think it's hard to beat. Also, it benefits from tube rolling greatly.

Hi, thank you very much for your comments. Actually, I do agree that the Krell or the McIntosh sound really too "electric". I really like the sound of valve amps. (Never heard a hybrid...)

I just bought a pair of Triangle Antal XS and I think they would match well with a low powered hybrid. Forgive my ignorance but to be honest I wouldn't know how to connect the Antal with this, since each speaker has four speaker posts whereas the amp only has two per speaker. Can you please tell me how to hook them up? Any advice on which cables should I get?

Oh, and forgot. One last question. Is this amp well serviced in the US?

Thanks again for the patience! Josep