Mono Blocks / why are they not more prevalent? + Wyrded4Sound SX1000R

I think the biggest benefit of monoblocks is the separate transformers and power supplies.  If properly done it will provide more control and less noise to the speaker.

What no one mentioned is there is also another class called dual mono that combines 2 mono blocks into a single chassis.

The biggest differences in all of the above are the space and cabling costs (power, speaker, line level). Your space and environment may be the biggest factor that determines what works for you.

Friend

The mono-block does indeed provide a better presentation.  However, factors such as space, weight, and convenience creep into the decision making process.  And to make all of that more complicated - the those factors can change over time only to possibly change again over time.  

It would be worth a visit to a high end establishment that carries both to get a feel for what you may be missing going one way or another.

One advantage to using monoblocks is locating each monoblock close to each speaker thus yielding a very short speaker cable. With that said I agree that a lot of audiophiles don't hear the difference between a stereo amp vs the same amp in monoblock form.

If you notice that most mono block makers also make a stereo version that’s cheaper. I am really happy with my BHK 300 mono blocks, but I have wondered if I’d be able to hear the difference between the stereo version and the mono blocks.

I also like tube monoblock amps.   I am currently running two McIntosh Mc275 amps in monoblock mode.  I believe you get more dynamic headroom, more current, better handling of low impedance drops of specific speakers (like my Wilson Watt Puppy 8).  Crosstalk is also nonexistant.  

Personally, I think the advantage of monoblocks are mostly effected by the architecture of the amps, the type of speakers you choose to use, and the size of the room. So, in my case, a large room, and tube amps with Speakers that dip to low impedance at specific frequencies is a good use case for monoblock tube amps.  So, in the right use case, I do believe you get better sound than the same monoblock amp in stereo mode.