Hi End Pre-Amp shoot out in central jersey?

Hi Seldon,

I'd love to hear the Lamm, I've heard some of his power amps before and thought them very musical.

I am not sure what to make of Mechans post either, but hey, it's a public forum and everyone should have the right to express themselves.

Best,

Ron

OK,

I have to ask what is a [b] phonon that has approx. 200db of gain.[/b]?

200dB is a gain of 8,000,000,000.

dave

I think Mechans is referring to a phono stage?

Rlips, your room/system is *very* impressive! I hope you post your shoot-out results on this thread. I too have a Lamm L1 and would be interested in reading about your shootout if Seldon participates.

I think Mechans is referring to a phono stage?

NOT! Very very few phono stages, new or old, go much beyond 60db. And nearly all that have this much gain achieve it with a step-up transformer which takes a typical MM stage of 35-40db up another 20 to achieve 55-60db to support medium-output MC's.

db = 20Log(Av), where Av is the voltage gain. A gain of 200db would be 10 billion; the 8 billion noted above is close enough.

To imagine a line stage with an output of 1v to drive many amps to serious levels, and do this with a phono/line gain of 200db would imply the phono cartridge has an output of less than a nanovolt. This is silly. And to achieve any kind of phono gain beyond 60 db or so with tubes and deal with the noise issue almost requires miracles....something the SP6 is not capable of, heavily modded or not.

And now back to the main program.