I have owned the CJ & ARCii but not at the same time. The ARC are very good sounding amp and have a stronger bass than the CJ MVSE but in my opinion the CJ mid range was sweeter. The biasing for the ARC amps for me was also much more difficult to set. So IMHO the ARC will control the speaker better but the CJ mid range was better. Both used are very good buys and you would have to spend quite a bit more a get better sound.
