Was told by a dealer that if I was interested in a used Threshold go for a earlier "S" as opposed to latter T series as something went wrong on latter ones.Anybody know what I am talking about?Or he was talking about?
I have not listened to the T series, but own the Threshold S300 and the S550E. Both are excellent, with the latter wining out in just sheer power and room and better defined and deeper low-end.
The "T" series makes use of output devices that are no longer available from what i understand. Having owned several amps that made use of similar circuitry with the same devices and pounding on them day after day, i would not worry about this too much if you like the amp. Just pay attention and be careful like you would with any other electronic component. Sean >
Sean is correct. The T series used IGBT transistors which is a cross between bipolar and MOSFET. I think Toshiba and International Rectifer used to manufacture them but not anymore.
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