Research Rogue Audio. The RP-1 is $1.5K and the RP-5 is $3.5k . I really like my RP-1 and the folks at Rogue have been really confidence inspiring on the phone. Only issue is no Balanced out until you get up to the RP-7.
Tube Preamps.....
I am running 2 GFA 565 Musical Comcepts modded Amps with Vandersteen 2ce v2. I am looking for a good quality tube preamp. With or without a built in dac. Should I stick with shopping for a used Mac? Or should I look at others also. Suggestions? Like to keep it under $3000. Could stretch to 3500. Thanks for your input.