I have owned the Parsound A21+ and liked it though I thought it was a little thick. A good amp for a bright speaker.
My recommendation is the Schitt Wotan at $2k. I consider it as good as a couple of $8k SS amps I owned in the past. The Wotan has tremendous bass like the A21+, it is much cleaner on top.
It does need about 2 months of heavy play for the top end gremlins to completely go away. I have listened to this amp with the Yggi+ LIM | MIB | OG on Magnepan Mini speakers.
BTW - over the past decade I have bought and sold the AHB2 about 6 times. I was doing a lot of audio swapping then. The AHB2 was replaced by the Wotan because the AHB2 is not great with Maggies. The AHB2 is a bit cleaner on top over the Wotan, but that is usually the case for ALL amps compared with the AHB2. The Wotan has a lot more power and grunt that the AHB2 cannot deliver. I love the AHB2 since it is such a unique sounding amp.