Summary: Previously had Melody astra-black 50 tube integrate, which had lush and warm sound, however bass was missing and u know yearly maintenance(tube life), use to left on for 5to6 hours daily. to get the rid of the yearly hassles, planned for SS. Brought the Luxman l505Ux in exchange offer.
Summary: My amp is currently with about 70 hours break in and is stil improving sonically. Highs are silker and with better resolution on the top end and mids are getting nicely warmer. Out of the box L-505u sounded great from the very beginning but for my tasting it lacked a bit of warmth.
Summary: I've read some reviews qualifying L-505U as being valvelike, but I disagree. It's a very natural and neutral amp which shows how the balance of your system is exactly as it is (not cold nor warm).
Summary: This amplifier is really great. I bought it brand new and let it burn in for about 200 hours before I had a good listen. I just let it play for 8 days and nights. Wow this really makes a huge difference.