fuses - the $39 ones or the 85 cent ones

Dave_b, what do you mean when you say you elevated your sub? Did you place them on a pedestal/slab? If so what was the result. I'm considering placing mine on a pedestal to get it decoupled from the floor.

Yes, do it now Timrhu!! I used home made wood plinths with brass footers..1" thick and 15"x15" for my subs. My subs also have Mapleshade brass heavyfeet footers attached for even more decoupling and isolation. The results are so impressive that I could swear I had a pair of new $27K wilson 8's or the like ...I did have a pair of the 6's once and the sub elevation has surpassed the bass quality and dynamics of those $20k speakers. The improvement was quite startling across the board; Better slam, improved weight and definition with increased clarity and soundstaging has improved as well. Image specificity and instrument placement are stunning...it seems that proper integration and decoupling of the subs effects more than just low bass response. The ear seems to pick up a better sense of coherence well up into the mid band...remarkable!!

Thanks Dave, a project for this weekend.

I e/m the engineers at MBL to ask their opinion on upgrading to the HI-FI fuses- they felt that it may cause damage to the units and felt it did nothing to the sound???- they HIGHLY rec. I stay with the regular (cheap) fuses)- bill

Says something about MBL and how highly they trust their customers. Not surprising though..they don't want some nimrod screwin around with their amp and then sending it back for repair!