hi everyone...new to this web site, and not the best with computers. I do own 6 pair of bose 901's between boat and home....some series 2 and 3 and some 4. i recently purchased pair of 4 that need reconing... not sure about removing existing foam around cone without damage. some say to remove each speaker. is this necessary? my peavey xr 600 amp has built in equalizer.. do i need bose active eq? On my boat, i have same set up with pair on top and pair below. they are all wired together at peavey amp. sounds pretty nice, but not sure if this is causing harm to speakers. i am a retired musician, and have had my problems with altec, jbl, and other speakers. i think that is why i am a believer in the bose. they seem to perform well at high levels, and that's what i need to piss off the other boaters ( just kidding ) back to forum... can i use alcohol to remove foam on cone.... can i scrape off foam on cone with razor blade, and do i need to remove speakers? thanks for any info, alan