I need to keep heat low in my office, so I used these two pieces together for many years
a Carver M-400T amp
https://www.carversound.com/carver-amplifiers/M-400t
and one of these for it's 4 inputs, remote volume and remote balance
https://www.ebay.com/itm/234116696552?hash=item36827149e8:g:FOsAAOSwhNlgmIqc
Now with small integrated 10wpc tube amp. I still use the Chase unit just for it's switched power outlet for remote system on/off
a Carver M-400T amp
https://www.carversound.com/carver-amplifiers/M-400t
and one of these for it's 4 inputs, remote volume and remote balance
https://www.ebay.com/itm/234116696552?hash=item36827149e8:g:FOsAAOSwhNlgmIqc
Now with small integrated 10wpc tube amp. I still use the Chase unit just for it's switched power outlet for remote system on/off