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

@OP Mono amplifier toplogy is just one more design choice among many. With the amplifiers you are budgeting for, you should listen to some stereo power amps in the same price range.

The Wyred4Sound amps are pretty decent amps. They got a rave review in TAS a number of years ago - a bit too rave IMHO. The have a fairly typical Class D sonic signature - bags of power and very clean sounding. But one person's clean is another person's sterile so as always, listen before you buy.

I love the monoblocks  if your looking into class d smsl pa  x has a gan fet mono 500 watts for 700$ from apos audio or on Amazon. D sonic Pascal module has a 30 day trial monoblock 1400 watts into 8 ohm 2700$. Short speaker cable and longer xlr cable do sound better.. I have alot of mcintosh 1.25 kw  and they are powerhouse but$  enjoy the search.

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.