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In Reply to: RE: Cathode Follower Line Stage posted by Triode_Kingdom on May 16, 2017 at 10:24:08
I'm curious. What would happen if you put a volume control with each set of input jacks? Also why no volume control on the amps? I like the extra fine tuning you get with dual controls.
Edits: 05/16/17Follow Ups:
Vinnie, there are several reasons not to cascade volume controls in the way you suggest. For one thing, every stereo volume control exhibits errors in channel-to-channel tracking. Then there's the noise of wipers and carbon tracks, as well as the effect a variable input resistance has on frequency response due to Miller effect. These issues can be significant, even with only one volume control, and they're cumulative when the controls are connected in series in the audio chain.
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Buy Chinese. Bury freedom.
The output impedance of a 100k pot adjusted to the -6db point will be 25k.
25k driving the Miller capacitance of the first stage will likely cause a loss of high frequencies in the audio band.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
If it above 12khz I probably can't hear it anyway. One of the joys of being 70!
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