Mach3 Posted January 11, 2012 Report Share Posted January 11, 2012 So about three years ago I bought a set of AR-9s from a fellow in New York. Eventually got around to rebuilding the crossovers (all film caps and new electrolytics for the bass section - and all new wiring). The things sound MAGNFICENT. I have been to an RMAF and did not hear a better sounding speaker. I would not take $10k for these speakers.BUT - and it is a big butt - when I was rebuilding these units I noted that the woofers had a square magnet structure. But they fit the hole in the cabinet (and the cabinet is that of an AR-9 being 53" tall) so I assumed they were original AR-9 woofers (the seller did share that he had these units refoamed - and the surrounds were in fact brand new).Unfortunately pictures I have seen of the original 12" AR woofer all show a circular magnet structure - and for the 10" woofer a square magnet structure.So my question is; is it possible that somebody has placed a 10" AR woofer magnet structure on my 12" woofers? Is this even possible? Or did the factory itself have a reputation for swapping the magnet structures back and forth? The drivers fit the holes in the cabinet perfectly - as in no room to spare. So the speaker baskets are in fact that of the AR 12" speaker.I do know this - I have prodigous bass - flat down to 30 Hz (measured it with various devices) IN THE ROOM. I do NOT seem to be lacking in the bass department.I do wonder - has somebody been messing around with these drivers? I would imagine that a profit could be turned somehow by changing out magnet structures. Generally if a profit can be made somebody will be out there doing it. Human nature and all of that.Next question: If in fact I do have a "modified" woofer driver (or actually FOUR OF THEM) can anybody suggest a good replacement? ABTech? Simply Speakers? Both of which advertise that they are selling OEM drivers.And insight would be appreciated.Thanks Link to comment Share on other sites More sharing options...
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