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In Reply to: RE: VOM 1448 Replacing PECs or Tone Bypass posted by lektrik on December 05, 2014 at 22:54:41
About 20 years ago some designers created a fad that no tone controls guarantees better sound. I think the designers found it was cheaper to eliminate tone controls and now are afraid producing a product with tone controls will doom the product due to this ill advised fad.
I think it ridiculous to bypass tone controls. Tone controls allow the system to be tuned for better sound. I have proven this time and time again with quality parts.
Follow Ups:
I don't think of it as a fad to bypass the tone controls. When you hear a problem with the tone control circuit and do not have a way to fix it, then plan B would logically be to bypass that circuit. I would prefer to stick to plan A which would be to get rid of the PECs and put in discreet components, but I believe plan B would be better than leaving it the way it is.
I don't think it's ridiculous to bypass the tone controls. The old PEC components are going to continue to deteriorate with age and continue to sound worse and worse, so either plan A or B would be better than doing nothing. I've had many a tone control-less preamps that sounded wonderful, so I know that I don't 'need' them, personally.
For now, having the controls at 12 o'clock sounds okay at low volumes, but it seems that they are on their way out when you start to put some power through them. I have two other 1448s other than the one I'm working on and they are not near as bad sounding as this one when you turn the tone controls up. All three have been recapped and the same tubes have been used in each amp.
To sum it all up, I think PECs are just a bean counter's compromise and sound like butt and I'm really looking for answers, not arguments.
Larry D.
Errrr, rebuild the PECs, keep the tone controls. I never build anything to plan B either.
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