Tubes Asylum

" As you say in guitar amp it is different and the distortion overdrive is what they look for "

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FenderLover

In Reply to: RE: My results in my Marshalls posted by notben on March 30, 2014 at 17:15:50

Mike, just to anal, what most guitar amps shoot for is harmonics & OD in the pre-amp and input stages. Harmonics in the output stage. OD in the output = very, very loud. Some output bottles have that magic overtones, even at moderate volume levels.

Edits: 03/30/14

Follow Ups:

RE: " As you say in guitar amp it is different and the distortion overdrive is what they look for " - Michael Samra 22:22:28 03/30/14 (2)
In the driver stages? I was wondering because Apsen Pitman and Myles at Groove Tubes were always telling me about distortion ratings and what I need for hifi vs guitar applications.

Honest amplification is better than excessive 2nd order distortion anytime.
- RE: " As you say in guitar amp it is different and the distortion overdrive is what they look for " - FenderLover 23:49:00 03/30/14 (1)
  Mike, I've found that a clean output stage, not pushed too hard can yield pleasant results. Most vintage 6L6GC Fender amps run around 65% rated max dissipation. Large percentage of the tone is derived from setup of the gain stages and feedback parameters. I use the toughest, cleanest sounding output stage tubes that most hi-fi guys are after. Except for SET amp tubes.
  Even with this setup, you can really hear the difference between makes, types, and era of output tubes. Every tube has its own characteristics.
  
  Edits: 03/30/14
  - Don't forget the Phase Inverter - notben 08:12:13 03/31/14 (0)
    Marshalls and others based on Marshall's take on the Bassman can have a lot of clipping in the Phase Inverter. It is one of the reasons I LOVE smooth plate Telefunkens in the PI, as well as bp Raytheons and RCA long plate 7025s.
RE: " As you say in guitar amp it is different and the distortion overdrive is what they look for " - notben 19:56:41 03/30/14 (0)
Grey glass mov genalex are such bottles for sure. Swirly, 3d, rich and all other sorts of adjectives.

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