I had a Delos customer who had problems with the Parasound JC3 - the high gain gave too much signal output, which would occasionally overload the preamp. He solved the problems by building a fixed attenuator and inserting it between the JC3 and the preamp (there is a very interesting thread about this on the Steve Hoffman forums).
In some systems 64dB may be too much gain for the standard output Kleos (especially if you have horns), but for most, it should be OK, and allows you the possibility to use the half-output Kleos SL version at a later date. I know from experience that 58dB will work, but 56dB may be getting close to the edge.
Compatibility between phono cartridge output and phono stage gain depends very much on the gain of each component after that. The line preamp, power amp, and speakers (sensitivity).
Regarding noise suppression, it is best to have as much of the total system gain as early as possible, and use less further downstream. IOW, combining a high gain phono stage, with a lower gain line preamp, power amp with even lower gain, and low-sensitivity speakers would be best if your primary goal is to minimize noise and hiss.
kind regards, jonathan
In some systems 64dB may be too much gain for the standard output Kleos (especially if you have horns), but for most, it should be OK, and allows you the possibility to use the half-output Kleos SL version at a later date. I know from experience that 58dB will work, but 56dB may be getting close to the edge.
Compatibility between phono cartridge output and phono stage gain depends very much on the gain of each component after that. The line preamp, power amp, and speakers (sensitivity).
Regarding noise suppression, it is best to have as much of the total system gain as early as possible, and use less further downstream. IOW, combining a high gain phono stage, with a lower gain line preamp, power amp with even lower gain, and low-sensitivity speakers would be best if your primary goal is to minimize noise and hiss.
kind regards, jonathan