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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Tube rolling preamp or power amp gain tubes, which ones (or both)? posted by Chuck Y on January 17, 2017 at 08:49:54:
I would agree with Chuck Y. Have both the HP and non HP versions of this amp. Would have to say I hear a bigger change with power tubes, but again depends on which tubes power tubes. I like a warmer sound so pulled the stock PL power tubes and inserted Mullard KT88 re-issue tubes.
The input or front end tubes will make a difference, but mainly its the first two 12AU7s that will have the largest effect. The other 12au7s is minimal by comparison.
As some of the other posters noted, the cost of tube experimenting can become large very fast. If you have friends that will let you try out a set of power or input tubes that is one option.
and as mentioned previously, coupling caps can make as big or bigger difference in the sound. PL uses metalized SCR caps in both the HP and non HP amps. they are ok, but not great. If you like the sound of the SCRs, a quick swap to the white film and foil SCRs will give you greater detail than the stock caps.
best
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- RE: Tube rolling preamp or power amp gain tubes, which ones (or both)? - mcgjohn@yahoo.com 09:35:21 01/17/17 (0)
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