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<blockquote data-quote="thylantyr" data-source="post: 2270036" data-attributes="member: 560358">I read the thread this time. lolYou have a tube front end and tube amp and arn&#039;t satisfied with the noise fromthe tube preamp. You should look into my suggestion, reduce the gain... callthe company up? Fish for a schematic? You can probably reverse engineerthe wiring and draw up a schematic, it can&#039;t be that hard.&nbsp; How much stuffis inside the rogue?Right now the solution is to migrate from a tube preamp to solid state?If so, does the tube amp support higher voltage preouts? or can youadjust the gain on that tube amp, even if you need to mod it.Basically, that&#039;s what I&#039;m getting at. A high voltage SS preout and reduce gaintube amp will offer less audible noise. The balanced issue is a secondary issuenot applicable to your situation.I had a problem with a SS amp where it was too noisy for my taste. A simplemosfet design that when you placed your ear inches away from the tweeter,you can hear audible hiss. The root cause is the circuit design, the quick fix isto reduce the amp gain and feed this amplifier a higher voltage &#039;clean&#039; inputto compensate. All it took was a opamp preamp circuit on the front end, simple.This cured the amplifier problems, you could place your ear right on the tweeterand hear no hiss.</blockquote>

[QUOTE="thylantyr, post: 2270036, member: 560358"] I read the thread this time. lol You have a tube front end and tube amp and arn't satisfied with the noise from the tube preamp. You should look into my suggestion, reduce the gain... call the company up? Fish for a schematic? You can probably reverse engineer the wiring and draw up a schematic, it can't be that hard. How much stuff is inside the rogue? Right now the solution is to migrate from a tube preamp to solid state? If so, does the tube amp support higher voltage preouts? or can you adjust the gain on that tube amp, even if you need to mod it. Basically, that's what I'm getting at. A high voltage SS preout and reduce gain tube amp will offer less audible noise. The balanced issue is a secondary issue not applicable to your situation. I had a problem with a SS amp where it was too noisy for my taste. A simple mosfet design that when you placed your ear inches away from the tweeter, you can hear audible hiss. The root cause is the circuit design, the quick fix is to reduce the amp gain and feed this amplifier a higher voltage 'clean' input to compensate. All it took was a opamp preamp circuit on the front end, simple. This cured the amplifier problems, you could place your ear right on the tweeter and hear no hiss. [/QUOTE]

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