Originally Posted By: edmondwolfman
 Originally Posted By: SRoode
I'm not that familiar with Sunfire, but I quick review of the owners manual for that amp reveals a 0.5% THD. That's 10x the THD of the Denon you have now. A 70W gain from 130W is only about a 1.5db gain. You will not notice that headroom.

I would recommend going for a quality 2 channel power amp rated at least 400W per channel to get a noticeable headroom improvement. Try to get one that is in the 0.07% THD range or better.


I do a lot of multi channel SACD etc. How would adding just 2 channels of 400W affect that?


Even in multichannel, most of the audio is coming from the mains. The surrounds and rears do not get the amount of output that the mains get. 130W/channel for the surrounds is more than adequate, and imo, not contributing at all to the fatiguing sound you are perceiving.

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