I added the AX 5 Twenty earlier this year. Great mids and highs, but not enough oomph to create detail in the low end on my B&W 803D2s. 125 w/c is 125 w/c. Poor choice in hindsight to attempt to use this in my main system. It'll be replaced by PASS INT-250 or Vitus RI-100, then off to drive Dynaudio Focus 160s in the home office.