Hey, i was on ebay today looking for a power conditioner finally and i saw all these furmans wth M in the model numbers. And they are cheaper too....Anyone know what is with them? Or is all the same "protection"... Playing mostly in small coffee shops that you wouldnt think you could fit 250+ kids in, space is a big thing, so using only one plus is a big advantage. Thats why i want a power condit.