Amp question with size constraints


I am in the process of looking to upgrade my amplifier (presently a Rega Brio R), but I am faced with size constraints: given the built-ins I have, I cannot really go much beyond 13 inches in depth. The trouble of course is that better amps tend to be larger in size. 

To add another wrinkle, I primarily listen to vinyl (via custom Linn Sondek TT w/ MC cartridge and Fyne floorstanders). I've seen positive reviews of smaller Cambridge and NAD integrated amps, but they tend to focus on the digital side of things. What I'm wondering is whether an integrated amp with my size constraints would work well with my setup for vinyl, or alternatively if there is a good power amp within that scale that I could just pair with a decent phono preamp. 

I am not married to any particular approach but am not really sure which way to go at this point. Help me, Obi-Wan, etc.

polanskyd

The AGDs sound very appealing but I'll confess I was hoping to keep it under 10k

The AGD Tempo di GaN I mentioned above is $5,500.

Yes though pairing it with AGD's phono preamp would put it at double that. Unless there's a cheaper phono that would work well in this case...

Well, yeah but you’re getting a preamp and phono stage made to match with the amp in the small footprint you require and is only $500 more than your price target. Here’s a review in case you haven’t already seen it…

https://6moons.com/audioreview_articles/agd-productions-alto-tempo/