Magnepan 3.7 and Nuforce Reference 18

Hi, I need to power my Maggies 3.7 and I am looking for some advice.

I already have a Musical Fidelity Int Amp 500WPC @ 8 Ohms Dual Mono(@4 Ohms data has not been released).

I am considering buying Nuforce Reference 18 Class D Amp. Does anyone know if they will drive the Maggies 3.7 with full authority?

These amps have excellent reviews as far as sound quality is concerned, but I am not sure if they can compare to a 500WPC Class AB amp when driving the Maggies.

I am considering Class D as they can fit in my suitcase :-)

Thanks!!