Interesting. In response to the old post regarding how much of an improvement the TNT-200 is over the DH-200, I can sum it up in one word "INCREDIBLE".
I have used and tested the following amps for powering my Acoustat Model 3's w/Medallion transformers:
Hafler DH-500
Hafler DH-200
Perreaux PMF-2150B
Threshold S/300
Several years ago I became interested in replacing my Hafler 500 with a Perreaux PMF 2150B. Out of the amps listed above I had found the 2150B had much better detail and was a significant upgrade in overall sound. During my quest, I found that used 2150B's had become popular among the "e-Bay" audio speculators. So much so that they were priced much more than they were worth to me. I did a bit more research and came to the conclusion that "on paper" if I could find a TNT-200 it should provide a similar upgrade in sound quality. Well, I found one and bought it at a very reasonable price. What happened next was nothing short of awesome. I just couldn't believe how good the TNT 200 was. It was amazing. There was so much detail I was dumbfounded. CD after CD, there were details that I had never heard before. Amazingly on some you could hear people whispering in the background very clearly.
After I bought the TNT 200, I sold the Hafler 500 for $100 more than the Acoustat. Hafler amps are great, but the Acoustat TNT-200 is so good that you would have to pay at least $5000 today for an amp that could even compete against it. In my mind, an Acoustat TNT-200 in working order is priceless.
I hope that answers the question albeit a year later...
BTW, the DH-200 has better sound driving my Acoustat Model 3's than the 500. I bought a used 200 for my son's birthday awhile back and after listening to them drive the Model 3's I tried trading my 500 for it, but my son would hear none of that. :-)
I have used and tested the following amps for powering my Acoustat Model 3's w/Medallion transformers:
Hafler DH-500
Hafler DH-200
Perreaux PMF-2150B
Threshold S/300
Several years ago I became interested in replacing my Hafler 500 with a Perreaux PMF 2150B. Out of the amps listed above I had found the 2150B had much better detail and was a significant upgrade in overall sound. During my quest, I found that used 2150B's had become popular among the "e-Bay" audio speculators. So much so that they were priced much more than they were worth to me. I did a bit more research and came to the conclusion that "on paper" if I could find a TNT-200 it should provide a similar upgrade in sound quality. Well, I found one and bought it at a very reasonable price. What happened next was nothing short of awesome. I just couldn't believe how good the TNT 200 was. It was amazing. There was so much detail I was dumbfounded. CD after CD, there were details that I had never heard before. Amazingly on some you could hear people whispering in the background very clearly.
After I bought the TNT 200, I sold the Hafler 500 for $100 more than the Acoustat. Hafler amps are great, but the Acoustat TNT-200 is so good that you would have to pay at least $5000 today for an amp that could even compete against it. In my mind, an Acoustat TNT-200 in working order is priceless.
I hope that answers the question albeit a year later...
BTW, the DH-200 has better sound driving my Acoustat Model 3's than the 500. I bought a used 200 for my son's birthday awhile back and after listening to them drive the Model 3's I tried trading my 500 for it, but my son would hear none of that. :-)