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In Reply to: RE: Tubes in the preamp stage......specifically two simultaneous preamps before the amplifier posted by wolters_jason@yahoo.com on September 30, 2015 at 06:44:31
Not really knowing exactly what I AM talking about - here it goes.
Even thou you have a tubed preamp it may not mean you will get a tube sound. True some functions will offer a lot in the way of tube rolling.
However if you tubes function is a phase splitter then you may not ear anything or very little in the way of the tubes effect.
Just a wild shot in the dark.
charles
Follow Ups:
Phase splitter tube? What does that mean? I like the sound of tubes, but literally know nothing about them. So you are suggesting that if my tube is just a "phase splitter" that it should not still sound any different than the solid state circuit option on the same unit? If that is the case, then why would Peachtree even bother giving the user the option?
The phase splitter is an essential stage in Push-Pull power amp circuits. Most of the time, it's a fairly colorless stage. I've rolled many tubes in guitar amps, and I'm hard-pressed to tell the difference between tubes except if they have different characteristics, tested parameters, or wildly different construction types (so, a 5751 versus a Sylvania long plate 12AX7; or, weak versus strong tubes).
As for your amp and why they used a tube, well, ask yourself the same question with the Samsung tubed soundbar. It's for show. It's like others explained: most of the gain and tone shaping is present early in the circuit and is done by transistor amplification. Having a tube so late in the amp's staging is like driving a new hybrid car with a vintage fuel injection system for show.
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May your tubes be warm, long-lasting, and always lively. Holy be thy heater.
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