TRL 595-how good is it?

Paul Weitzel views the mods as a proprietary process which is fairly common. He does not publish or disclose specific details to my knowledge.
They "optimize all circuits" and if I recall correctly form my emails with Paul they used their $30,000 reference signal processor to voice and tune the mod.

What I will tell you is whatever they do-it is quite an extraordinary unit which defies all logic in terms of the modest investment. The sound is breathtaking.

Jahaira: You are correct sir... I talked to Paul and as you stated the power switch is disabled for improved sonics.
I have to say that I have been sceptical of the whole burn in phenom that I read about so much.I have never experienced it myself until now. After about 2-3 weeks of burn in this thing is really sounding phenominal (not that it didn't sound good to start with). That's the good news.. the bad news is that I've suddenly got the upgrade rash and find myself scurring to look for new speakers. I feel like I just put a piece of equipment in my system that signifcantly leaped frogged everything else.

Thanks Lokie, but it wasn't me who answered your question. It was Jes45 .... Anyway, the break-in time with this Sony models are long ( with my 2000ES took over 250 hours) but worth it.

Don't get caught in the upgrade game until you get used to your new system. Maybe your actual speakers found their perfect match.

The 2000ES is basically the same unit ( 595) with a few additions and the use of 2 transformers. The main board is the same but has 1 less cap ( replaced with the additional transformer...?...).

Paul responded me and told me that he also offer the same mods to the 2000ES at the same price and conditions. What he does to the units is, like LKDog said, propietary. The important thing is that the unit with mods are affordables and represents a great investement.

I have to agree that the break in is extensive and since the mods likely add another element of break in required I am still hearing changes (good ones) after nearly a month and probably 325 hours.

I had not played the unit for about a day and a half as I just added a new phono preamp I am playing around with.

I think the "rest" did something. The bass extension and air is now at another level. This is quite a piece of gear.

We are talking about changes and improvement but have not specified where they are...CD and/or SACD playback? The circuits on these babys needs extensive break-in on both formats. My unit was set 24/7 with 3 CD's and a SACD's inside. Since the unit determined what format was playing ( front light is on when it's a hi-rez multi-disc) he has several hours on each format. The Default set the 2-channel SACD on and no hybrid side was playing during break-in.

My 2000ES is very good on both formats and bass has improved over my previous system ( which was nothing fancy but included good pieces and was 6:1 in cost). Sony has done something really nice with this cheap units and TRL seems to add the remaining piece on the puzzle.