Thanks for your responses. George hifi, is true about the cvt-3030. It difficult to find one in my area.
AMC 2100 or Emotiva UPA-200
I have sold my B&K ST1400 amp due to financial situation. Also lost my job due to COVID-19 so my budget is very limited. Right now I have looked at 2 brand, AMC 2100 or a Emotiva UPA-200 amp. This is going to driven by a Rotel RC-970BX preamp. I have a pair of DIY speakers with Dayton Audio drivers. Thanks in advance and happy listening