Preamp for Odyssey Khartago

Looking for an under $500 used preamp to match with Odyssey Khartago Plus. Would be happy with a simple, bare bones unit. Do not need remote, tape options. Just need volume control, would prefer two inputs but one would be ok Thanks.
Dynaco PAS 3 a good match for this amp.Eastern Electric mini-max does as well, shows up around that price on here sometimes.