Is 60dB gain enough for Kleos?


At age 52, after years of technological philandering, I am once again courting my old vinyl flame. I just bought a VPI Classic 3 because it looks like it was built in the fifties, like me. Now I am obsessing over the selection of cartridge and phono-amp. Every man needs his irrational, unsubstantiated religious beliefs, and mine include vacuum tubes (very fifties-ish) and a transformerless signal path.

So let's say that for the moment I am enamored with the Fosgate Signature phono-amp, which having a 60dB gain without any input transformer. Now I have read that this works best with a high-output MC in the 0.8 to 1.0 mV range.

Here's the rub ... I am very intrigued by the Lyra Kleos, my fascination with which is due in no small part to the musings in these pages of J Carr himself. Alas, the Kleos has an output of only 0.5 mV. So I seek the advice of those who might have pertinent experience!

Dave
david_pully

Showing 1 response by jcarr

Hi David:

Regarding suitable gain of a phono stage for the Kleos, I'd normally suggest 63dB or more, although if you have a high-gain preamp, power amp, or quite efficient speakers, 60dB may be enough (as J. Frech has suggested).

For lower-gain phono stages, I'd suggest the higher-output Delos, which is a better-sounding, better-performing cartridge than the more expensive Helikon (now discontinued).

One thing worth mentioning is that the phono stage design is very important to the perception of surface noise - a phono stage designed to have good high-frequency overload margin and linear, low-distortion in the ultrasonic region will usually sound quieter.

As I mentioned to your question in the other thread, I have used or set up the Kleos on various unipivots like Grahams, Audiocrafts, Moerchs, Spiral Grooves and whatnot, but haven't encountered any problems that I could pin down to unipivots as a category.

kind regards, jonathan carr