For a while, between systems, I ran a Topping MX3 with a tube buffer to Quad speakers.
Imho a great, versatile little box for no money. The buffer defo made a difference too. Both for about your budget.
I have my very first Cyrus 1 available if you are interested Neil?
Do you know I wondered about Cyrus. Never heard them but remember seeing a tower of shoe boxes in the hifi store. Please PM me. Thank you.