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Infinity RS IIB

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MacGeek:
Hi all,

I recently came across a pair of Infinity RS IIB loudspeakers while helping clear out the estate of a family friend.  These are, at best, in fair shape cosmetically, but will clean up and look decent.  Electrically there are challenges.  All of the  connections to the Emit and Emin drivers are disconnected.  I found a schematic for the RS IIA model that uses cone drivers and preceded these, but no luck finding help for the IIB.  Also, the rear firing Emit in one cabinet is missing.  Can the speaker be safely driven with out it, or do I need a resistor to create a dummy load for the crossover?

The prior owner was too young to be the original owner.  He must have fancied himself an electronics wizard because there was lo and mid fi gear installed all over the house (you wouldn't believe the wiring); mostly older stuff in rough shape.  I suspect he tinkered with the Infinities and removed the missing rear firing Emit to replace a blown front firing driver (over driven in all likely hood-there wasn't a decent amp in the house), but that is pure speculation on my part.

These will need a bit of work to get them in good operating condition, but should be worth it, based on the reviews I read.  I want to get them operating before I commit to foaming woofers and the other things that need to be done to make them sound the way they should.  Thanks for any help

McG

Sir Thrift-a-Lot:
Rather than putting in a resistor, I would look for some sort of modern equivalent.   Yes, I[m sure that electronically the xover needs to "see" that load at that point, but I would think even a close substitute would do a better job of recreating the intended sound than just having nothing there.

MacGeek:
Thanks, Mark and I agree.  However, all I am trying to do for the short run is get them operating so I can determine if they are worth restoring.  If I find they have a number of blown Emits/Emins, I'll either part them out or recycle them.  I already know the woofers need to be re foamed.

scorpio333:
I've got a pair of Qe's that are daily drivers. I've never opened them up so I don't know how easy/difficult removing the EMIT driver is. If it helps get you out of a jam, I can bring one over or meet or whatever, let me know.

MacGeek:
Thanks for the offer; we can always get together just to play.  I have a pair and can put together one working speaker with what I have and then swap drivers as needed to test a second speaker.  The Emits and Emins don't look to difficult to remove.  Where I need help is with the wiring to those drivers.  It is all disconnected and I am concerned about proper phase between the woofers and the mid/tweeters as well as phase between them.  I cannot find any pics on line and the schematic I did find is for the model RS II A version

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