The Crown XLS 2002 issue
So I had some serious issues getting the proper sound out of the Crown Amp even at .775v. It was brought up that a cleanbox would pump the gain. However, it made a large thud if I turned it off in the wrong order and I also didn't like all of the cords and (right or wrong) I didn't trust it.
You can enjoy the long threads here:
The bridged amp solution
I tried some consumer amps and got great results. So I began to search eBay and bought 2 Rotel 981's that I can run in mono for an alleged 360W. They sound great. In classic AVS fashion I figured I'd try to blend via active crossover the MBM's with the mains and then run double bass (fronts to large).
Blending the mids and fronts with no LFE
So in order to do that I needed another amp (Rotel 981) in stereo and a MiniDSP 2x4HD because the regular miniDSP is not high fidelity enough for full range (and I needed the ports).
Input sensitivity issue (I think)
I had the same issue as I did with the pro amp and MiniDSP HD. I speculate it had to do with the input sensitivity on my NAD.
So that went out the window. I needed to return the MiniDSP HD and one of the amps (on ebay, not easy).
Testing the heat
I ran a test and pounded gravity at -15dB with the subs at full range (which is loud for me) and let it run for 5 hours and left the room. I came downstairs and felt in the tight media console, it wasn't super warm. But I still didn't want them running full time.
The older amps didn't have triggers and would pull a bit of power and heat. So now I needed a trigger enabled powerstrip. A Panamax 5300M-PM caught my eye. They are $500 new but I found one on Audiogon for $175, it was damaged in shipping but the only real issue is one LED is out.
Closing the show
Now I just need to sell the Crown on Flea-Bay, sell my old Atmos audiosource amps, and send my NAD in for warranty fix for their Atmos pre-out bug. Then it's done!
I love the sound and I think Dirac really blends it well. I'm going to run MSO given that I'm running these near full range. I plan on adding a HPF at 20Hz for protection but that's basically full-range.
77" C9 + NAD 758 v3 with Dirac 7.6.4 + Rotel 976 + Panamax M5300-PM
Speakers: Paradigm Prestige 75F's + 55C; 8x Paradigm CI Pro P65-R's
Subs1: 2x LRK Build Thread
+ 2x Rotel 981 (bridged); retired: VRK Build thread
Subs2: 2x Rythmik LVX12; 2x Dayton HF 12's Ultra-NearField + Crown XLS 2002
MiniDSP HD & Non; DIY Room Treatments: Dutch Floral Prints