Musical Fidelity A 3.2 dual mono integrated amp

Hi guys, I just want to ask your views or opinion regarding a possible upgrade(or downgrade) to my amp section. I'm currently using an MF A 3.2 which gives out 115 wtts at 8 ohms to power my NHT SB3 speakers which has a sensitivity of 86db. I'm being enticed to get the Naim Nait 5i integrated amp which has a rated output of 50 wtts/rms at 8 ohms. The Naim has a "distinct" sound and I must say I like it. Could the Naim Nait 5 i power the 86db speakers efficiently? The SB3's are sealed and I must say inefficient. I would appreciate any response and  comments on this matter. Are there anyone of you guys who own the same amp that I'm using? Any views on the MF A 3.2?