Info on Perreaux PMF 5550.....

I have been searching for a high current amp for my Infinity RS 1B base woofers. I am using a Perreaux 2150 b and I have been advised by many and (sean) that the Perreaux 3150B would be much better. I have had no luck finding one. However, on e-bay the PMF 5550 appeared.
Any comments or anyone familiar with this amp? (SEAN??)