Benchmark AHB2 power amp impressions?

I have an all Benchmark system - DAC3L > HPA4 pre > 2x AHB2 in bridged mono.

I completely disagree with the comments that the AHB2 is clinical sounding. To me it sounds beautifully balanced and fully capable of reproducing the full range of musical colours and emotions. Notice I say reproducing. The AHB2 is definitely not a coloration machine for injecting flavour, it's an 'as is' device for reproducing whatever is provided by the source. 

I've had 6-7 amplifiers of all types through my system in recent years and have found that amplifiers with 'flavour' eventually become tiresome as the 'thumbprint' is heard on everything that passes through them. I prefer the revealing, chameleon like, character of the AHB2 where the sound changes with the qualities/intricacies of the source. 
I also appreciate these qualities in the ATC monitors I'm using in my system and find the combination musically compelling. YMMV.

I had a Halcro MC30 class D amp for a while which I really liked. It was also very revealing and not overtly coloured. 
I sold that amp mainly because the highish gain wasn't a good match with the preamp I was using at the time.
Hard to make a fair comparison because I didn't own both amps at the same time and the other components were different. My feeling is that the AHB2 may be superior at low levels, in the high frequencies and in terms of low noise floor. However the Halcro was still impressive in those respects, so it's relative I guess. 
My thoughts aren't really much help to you because I never did the direct comparison and the Halcro isn't necessarily similar to the other Class D amps you mention. 

@douglas_schroeder I've read a bit of the double interconnect thread. It seems people are experimenting by using 'Y' adapters for RCA interconnects. I presume you are using balanced connections with the Benchmark gear - have you done that by bringing both cables into the balanced shell and double terminating on the single connector?
May I also ask which fuse brand you substituted into the Benchmark gear? 
BTW, I agree about the power cords. I use only the relatively inexpensive VH Audio DIY cords with Furutech connectors - but would never go back to stock.
As you know the DAC3 IEC inlet positioning makes it impossible to use round barrel IEC connectors without obscuring the usb socket. So I initially used a just a decent shielded cord I had lying around with moulded connectors.
Later I decided to re-terminate one of the VHA cords (which I'd used with other DAC's) using the compact Furutech rhodium plated IEC. I was shocked by the improvement. 
I'm sure if John Siau reads this he'll be doing a double face palm.

@douglas_schroeder I'm going to make myself up a set of double interconnects to try between my Benchmark HPA4 and mono AHB2's.

I was initially going to make up XLR 'Y' adapters but was put off by the extra cable breaks and all the extra connectors required.
Of course for people who want to experiment extensively the adapters would be a good idea.

Since I'm using pro cables - Mogami Gold studio (W2534 star quad) - it's pretty cheap to make up double runs of w2534 with the same gold Neutrik connectors terminating both cables to a single XLR at both ends.    

I'll reply back with my results to the double interconnect thread as it'll be more relevant there.