My main system: C-J: ART 88, ART Phono, 27A
My summer home system: Marantz PM10 and matching SA10
I did compare them together before sending the Marantz stuff to it's new home. The Marantz PM10 has a Class D amp, separate power supplies for each channel and also another separate one for the preamp section. The C-J 27 A is Class A. The C-J has better micro detail, but the difference is subtle. Both offer superior liquidity, sound stage depth, and allow hours of listening without fatigue. The Marantz has much more power and handles difficult impedance loads with ease. It is a great match for B&W 802D diamonds, which is why it was my choice. There is clear superiority for both the C-J 88 Line Stage and Phonostage. Greater resolution of detail, more life like imaging, just more magic.