Well, I can't speak for the Pioneer or the JBLs, but I wouldn't classify the P1 as "lo fi". I've listened to it extensively and liked it quite a bit. Actually, I like your approach with the system. Nice work foraging!

I thought the Pioneer SX-1050 is a receiver. If you want to add a little tube sound for a little cash ($118) try putting an AudioDigit Tubalizer in the tape loop.