Okay so I see a couple of options:
My unused channels on the Marantz 8077 amp are at 150 watts per channel into 8 ohms. On my SubAmp 600 currently driving the subs, it's 230 watts per channel into unknown ohms. So I could get a mini DSP HD and drive the Def Tech subs with the Marantz instead of the Def Tech SubAmp. The question, will the power loss be very noticeable with the drop from 230 to 150 watts?
The second option, buy a dedicated 300 Watt per channel 2-channel amp to run both Def Tech subs. If I go this option, what's the best 2-channel amp (I know this is pretty subjective, just looking for opinions). Money isn't the deciding factor, but I want to keep in mind the quality of the subs. For example, I would not buy the NAD masters amp to run a couple of Def Tech subs. Also, will I blow my IW 10/10 subs up with 300 watts given they are currently using 230 watts?
Thanks!