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It boils down to the circuit having by far the biggest impact on sound

172.11.32.65

In Reply to: RE: Wouldn't doing that increase HD? posted by Tre' on May 14, 2024 at 07:32:51

of a component compared to tube flavor. People want/need +/- 3 to 6db and more impact on the frequency response when they are unhappy with the sound. If one brand of tube is "too bright", another brand will not produce a meaningful / measurable difference in frequency response unless one of the tubes is broken. The issue is typically boils down to the frequency response and impedance by frequency of the loudspeakers.

Many guitar amps use the cap across the plate load to smooth out the harsh icepick frequencies they can produce. I have played with bypass caps on the plate load resistors and the impact is pretty subtle in the 250pf range when listening. A shelving resistor, as pointed out, is best.

The reality is that people want and need tone controls but are too scared to have them because the cool kids say they are terrible.

Follow Ups:

"people want or need tone controls, absolutely... Sometimes must correct for Engineers or Charlie Parker - Cleantimestream 13:21:49 06/01/24 (0)
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RE: It boils down to the circuit having by far the biggest impact on sound - SoundMann 03:32:14 05/19/24 (1)
The circuit in my EAR clone is a very neutral one. It clearly shows the different strengths and weaknesses of the tubes I have been rolling thru it.

Anyway, the GE 5751 is out of commission with a broken pin.

I have spent several days auditioning the tubes in different positions, and have found that it sounds the most balanced, warm and true with the stock red-label classic Psvane in V1, the GE 12AX7 in V2, and the RCA 6201 in V3.
- RE: It boils down to the circuit having by far the biggest impact on sound - SoundMann 12:38:09 05/19/24 (0)
  I am going to have to dump the RCA do to it having too much emphasis on the edges of metallic objects.
agreed. nt - Tre' 08:58:06 05/14/24 (0)
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