I need help with selection of a pre-amp


I currently have paradigm reference studio 80's, a parasound hca-3500 amp, and a denon dvd 2900 as my source, and i am using an onkyo reciever as my pre amp. I am looking for recomendations on a pre amp with this combo. I would prefer to buy a used one and am willing to spend up to $500. i would also like a thru put so that i could run my home theater pre amp though it but not required.(just as a side note i also have a parasound hca 2005 and paradigm refrence surrounds and center and i am looking to integrate my 2 channel and 7.1 channel systems.)
cadence151f38a
Upgrading the Onkyo will make a bid difference. Try to find a McIntosh C712. It has a processor loop and beat many other preamps (in my system) with its beautiful sound quality. Great preamp for the money. Arthur
I love my little Parasound hp850 preamp. It matches well with the hca 1000 thx amp. Linn LP12 > Parasound > Tannoy Revolution 3's. That's it.