Murgeshj: My Luxman 590ax sounded good when I first started playing it. However, it really sounded great after about a month of daily playing time.
I am using the Apple MAC Book Pro Computer, a LaCie external hard drive, the Ayre QB-9 DSD DAC and the Sonus Faber Olympica II Speakers. This Luxman Class A amplifier drives the SF Olympic II speakers to loud levels in my living room. The Luxman L-590ax is fully balanced and I am using Harmonic Technology Magic Link Two Interconnect Cable balanced cables from the Ayre QB-9 DSD DAC to the Luxman. My local retailer has suggested I replace my Harmonic Technology IC with another cable so I am thinking about it.
The Luxman amplifier is very heavy and the box is huge (doubled boxed). And, yes, it does get warm to touch but the heat is not a problem. It does need plenty of open air around it.
It is hard for me to describe how it sounds. For me, the music is fuller, with more detail and better bass control. It seems I am hearing more things than I did with my Ayre AX-7e amplifier. The mid range is outstanding. I do not understand but it seems classical music sounds much better on the Luxman than the Ayre. The music is clearer, more airy and easier to listen to. Overall, the new amplifier sounds excellent in my system. I listen to classical, jazz, blues, country and new age.
I have owned the Luxman since May 2012 and I like it very much. I have stopped looking at other integrated amplifiers since the Luxman 590ax sounds excellent. As you know, the Luxman is a class A amplifier and I really like class A sound. In summary, I highly recommend the Luxman 590ax amp.
I encourage you to listen to the amplifier and see what you think. If possible, you should try it in your own system.
Do you have any more questions?