davef1959
I'm not sure you understand how this should work. Or, maybe I'm not understanding you properly.
The headphone preamp input should be connected to the Krell's "tape out" jacks. Whatever source is selected on the Krell should then go the the headphone preamp - but do not select "tape monitor" on the Krell. That should be left on "source."
Please try that and report back.
I did try connecting the headphone amp to the preamp L-R output jacks. Still not working.
I'm not sure you understand how this should work. Or, maybe I'm not understanding you properly.
The headphone preamp input should be connected to the Krell's "tape out" jacks. Whatever source is selected on the Krell should then go the the headphone preamp - but do not select "tape monitor" on the Krell. That should be left on "source."
Please try that and report back.