The SDS was about $100 an amp more for things I did not need (balanced inputs, input level adjustment, etc.) The TI amps have greater distortion (their full power rating is actually at 10% distortion, vs. <1%), and were not as well received by the group. In reality, a lot of people preferred the sound of the SDS amp compared to the CDA amp, but most said it was not a difference that was worth the prices. Some people said it had "a deeper soundstage" and "presence". I tend to ignore comments by people who make those statements about amps.


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