2. amps-preamps
  3. 159503-78269

Prema luna Prolog 5 replacement power tubes (KT88)

Hi folks. long time no talk. 

The symptom: 
My brother in law owns a Prema Luna Prolog 5 power amp. I suspect that one of his tubes has a vacuum leak. The tube will fill up with a blue flame, then burn off the escaped gas then send a loud pop through the speakers when the escaped gas is burned off. 

The question:
Im looking for a replacement output tube for this piece. I doubt Prema Luna makes their own tubes eventhough the tubes are branded with their logo. I suspect that the tubes are made in China. Does anyone know who manufactures the tubes for Prema Luna, or does anyone have a recommendation on replacement KT88's that sound as good or better than the OEM tubes? Oh and of course he is not looking to go to deep into his pockets. I was considering a set of Gold Lions or Mallards which are in the $200-$250 price point for a set of 4 matched. 

Thanks in advance

-Keith
barnettk

Showing 5 responses by barnettk

barnettk OP
410 posts
 
@hgeifman 

From what I understand the Prima Luna amps are auto biasing. 

This is what Upscale audio recommends when rolling the tubes in the Prima Luna: 

"In KT88's the most common is the Electro Harmonix which is great, the Mullard re-issue and Gold Lion re-issue which in essence are the same tube and are superb."

So I was pretty much in the ball park as I was considering telling him to go with the Gold Lions.

thanks again.
barnettk OP
410 posts
 
@hgeifman 

Oh Ok I just looked at the link. He has the actual OEM KT88's at $55/per. not bad, and that is in his price range. So there ya go. Thanks this has been very helpful. 
barnettk OP
410 posts
 
@jjss49 

Thank you for your input!
barnettk OP
410 posts
 
Ok yes I did consider that since he is a big fan of the brand. 

Thanks 
barnettk OP
410 posts
 
Oh and for you Prima Luna owners I apologize for the miss-spelling of the name :). 
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