Recently, I have been been listening to the HT2-TL with AIFF files through an AVA Transcendence 8+ tube DAC, an AVA Insight+ SL solid state preamp, and an AVA Ultimate 70 tube amp. The tube DAC and tube amp are very detailed, and in some ways, I prefer the Ultimate 70 to the Insight 440 solid state amp. I am considering trying an AVA Transcendence 8+ tube preamp with this combination.