Semi-Compact Integrated Amp w/ Excellent Sound Quality?

I have a Marantz PM8006 Integrated & I consider it to be excellent sound quality for me. I am looking for an amp for my desk that has a smaller footprint, particularly width-wise, but has equal sound quality. I am not interested in down-grading SQ. Does anyone have first-hand experience with this?

I am feeding this with a Schiit Modi Multibit & Schiit Eitr. Other than just a basic integrated the only other feature required is a sub-out or pre-out for my 2 subwoofers. Speakers are Aperion Grand Verus III Towers, fairly efficient.

For example, sizewise something like the PS Audio Sprout 100 would be good. But what about SQ? I'm not experienced with Class D. I do not want something that falls apart at 100db. Looking for mostly a neutral-ish presentation with good dynamics, depth to the soundstage, & imaging.

Pricewise I was looking around $1000 but it's flexible.