3x mono (vintage) 1x budget (more modern)

Thanks for all of the responses.  They were very helpful.  Cheers!

Keep the MA500’s.  Those are great little amps

I wouldn’t bother.  If anything I’d consider upgrading the center speaker, preferably with a dedicated midrange, since that’s so important for HT and think you’d experience more of an overall improvement from that.  Something like this would likely be a nice upgrade…

https://www.audiogon.com/listings/lisbegc9-svs-prime-center-channel-speaker-open-box-svsprimectrba-subwoofers

Thanks!  I forgot to add, I already have the 3x MA500’s (2 more sitting on a shelf).  And all of the other stuff is already in place, with the exception of the 3-ch amp.  The Preamp is a Proceed AVP.

I am considering purchasing a 3-ch amp.

I would think that would just be a sideways move. Maybe take that $800 and…
https://www.usaudiomart.com/details/650124053-proceed-amp-5/