McIntosh or Mark Levinson are the way to go. I favor the McIntosh. You need at least 300 watts of power for those 8's to come to life and not clip the amp. Tubes on the fromt end are sweet. I have 2 preamps in my system McIntosh C-2200 with Telefunken tubes for 2 channel and a McIntosh Mx-132 for HT. McIntosh makes it easy to connect the 2 Pre Amps. And I love the Big Blue Meters! I also use Transparent Regerence XL SS cables. Don't forget to include cables in your budget. LOL Nordost are also great cables Just take your time and buy the good stuff.
Best of Luck
Best of Luck