There were some differences, but I did not really take the time to check them out in detail. I have pictures of the new amp on page 23 of this thread.

LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7