@
christoph ,
@DeadWax,
A Bit of History...
The TRP is my first venture into the Lampizator universe. So I really can't comment on it versus prior or current versions. Never even heard one at any audio show. Just thought it was a novel idea worth hearing. And after reading so many posts here on WBF from all the very knowledgeable users, I pulled the trigger.
When I did get my TRP, my first step was to listen to it, get a feel for its signature then compare it to my then current Meitner DAC. Both DAC's were fed by my Aurender N10 server. The Meitner via AES/EBU, the TRP via USB (both Shunyata cables). Both were then connected to my XP30, the Meitner via XLR, TRP via SE (again both Shunyata Alpha). The XP30 to the XA60.5 monos via XLR, can't remember what interconnect was used.
After countless A-B sessions, I was stunned.....they both were so close it was shocking. Had I just spent thousands to actually get maybe a 1/2 % difference. It was this that led me to try going direct to the amps from the TRP. Could not do this from the Meitner.
This was a revelation for me. Music now was more real, alive, emotional, etc. What more can I say, well bass thumped more, vocals had body, detail, very lifelike. Highs did not change much, maybe slightly less detailed. I was amazed. Now, was the preamp the issue. If I were to venture a thought, it would be that the XP30 maybe homogenized both. I really don't know but I am convinced that with the type of music I listen to, at the lower volume levels used, and with my particular room and gear, It works extremely well. As always, we have so many variables to deal with in our rooms and systems. I can't lay claims that it was definitely the preamp, maybe it was the DAC, Maybe minimizing cables, equipment, etc. But I definitely like what I hear and i'm very satisfied.
Now onto to a balanced version. Why? Well given that there is always a bit of noise in electronics, my speakers (Zu Definition 4's), because of their 100db efficiency, let you hear everything. At some point in this adventure something changed. The only thing I have ever heard when no music was playing was a very slight hiss from the tweeters. With full disclosure I have to say that you could only hear this when your ear was within a few centimeters from the tweeter. Since these changes, I can now hear a slight buzz form the other drivers and additional hiss from the tweeter. At times, I have woken up, with no music playing and could hear this from my listening position. I won't bore you with the many steps I've taken to eliminate this or at the least minimize it. But I've always heard that Pass gear works best when utilized balanced. I may have read somewhere that it was recommended by Pass. Was it the change to SE, I don't know. At any rate, this is what has led me to investigate a balanced connection to my amps. Now all I have to do, when I actually get my balanced TRP is find a quad of of the Psvane 6CA7 TII's to get an apples to apples comparison of differences between TRP in SE and XLR.
Ok, you have heard enough and I have taken probably too much of your time. Anyone with anything to add, I welcome comments on your experiences. Feel free to comment thru private messages if you wish.
Happy Holidays
Ed