Well the only reason I got the 740a was because I got a good deal on the pair with the cd player. I ended up selling the 740a and went back to the tube amp. I posted a new video on YouTube, with the new cd player and tube amp playing some Duffy.
Sonically the 740a and the tube were both good. The tube is slightly warmer in the lower mid. Lost a tiny tiny bit of detail. But the added warmth in the vocals was well worth it. I'll have a few more upgrdes in the next couple weeks. Getting some biwire cable, and some nice 4 pillar target stands. Hopefully it'll make a difference!