Won’t find a Gryphon for that kind of money, unless you get really lucky and it will be an older unit. If you can, try the Hegel H390. With a damping factor of 4K it will handle your speakers just fine. It’s actually quite small for what it puts out, dual mono configuration, runs reasonably cool, so can be used in tighter quarters, and it just sounds really good. I only sold mine to go to back to separates.