>30 is the right answer. In most systems, the number has been in the 100-150 range. In some rare configurations, I've found 35-50 works best.
Now, with my Atma-sphere MP-1, I am running wide open (no loading resistors). Just when you think you have it nailed down, your world turns upside down.
I'm beginning to think that we're not hearing so much the ultrasonic resonance peak direcly as much as we're hearing how this peak gives some phono stages fits (throws them into resonance).
I'd be curious to hear the thoughts of some preamp designers on this.
Cheers,
Thom @ Galibier
Now, with my Atma-sphere MP-1, I am running wide open (no loading resistors). Just when you think you have it nailed down, your world turns upside down.
I'm beginning to think that we're not hearing so much the ultrasonic resonance peak direcly as much as we're hearing how this peak gives some phono stages fits (throws them into resonance).
I'd be curious to hear the thoughts of some preamp designers on this.
Cheers,
Thom @ Galibier