Can't speak for the T200, but I have an SA/3 and have had the S150 II and S300 II. The SA/3 is smoother than the S150(these were upgraded by Jon Soderberg)and I liked the S150 over the 300. So, to answer you question, I think they sounded different. If the T200 has the IGBT circuitry, then it is probably similar to my Forte 7 monoblocks. The sound to me is a bit warmer than the Thresholds.
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