"Holographic" presentation

As with most hifi subjectivity, the proof is in the listener's pudding so to speak. Also, many (many) other factors not including the use of mono amps (dual mono? most well made stereo anything?) can have a profound effect on what basically is great stereo imaging where the players seem to be sitting in front of you in a defined group, or simply soundstaging at its best. Sound engineers either strive for a realistic soundstage or they don't...I complain about the 17 foot wide jazz drummers sometimes, but often I'm not bothered by that if the music is great.

IMHO, a "more holographic" presentation has nothing to do with whether the amp is a monobloc or a stereo version.

Circuit Design, implementation and parts quality has way more to do with sound than if the amp(s) is/are a one piece or two piece design.

I've owned MANY of each kind and have found both to be either good or bad, but had nothing to do with them being a mono or stereo unit.

I should add that each mono amp does has it's own power supply and of course, they have less likelihood of any interaction between channels, since there is only one, but again, a poorly designed mono amp is just that, a poor design. Same holds true for stereo amps.

Plus you need to be aware that the amp/speaker interface plays a big part also.

The largest factor of holography is media itself and recording quality.
Carver made preamp with sonic holography effects, but they don't qualify for audiophile market due to 'purity' sacrifice.

Thanks for your informative responses. I've wondered about
this for some time.

TWo mono amps, or a stereo amp that consists of two highly isolated mono amps in a single box even, may well have better channel separation and less crosstalk, which could work in favor of a more "holographic" presentation, but whether or not this would be heard in comparison to something else or not would still depend.

Assuming quality gear designed well in all cases, using two mono amps is probably a good insurance policy that overall performance of each is fairly independently optimized which should always work in ones favor.

In a nutshell, more can be done better with a single self contained monoblock, with dedicated power supply, etc., than can be done for similar cost otherwise.