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I have an older set of RM-40s w/TRT caps and spiral tweeters. I am gather the necessary components to rebuild these great speakers and bring them to the next level. Here is what I plan to do.1) Midwoofer upgrade2) Vitrifying the PR3) Check and reseal the Neo pannel enclosure4) replace stuffing in pannel enclosure with lamb's wool5) reseal all drivers with 1/8" speaker foam seal6) add internal bracing to cabinetI do have a few questions,1) Is adding damping foam to bass enclosure or pannel enclosure worth the expense?2) if so, how much is needed?3) how much lamb's wool per speaker?Is there something I missed or any advice that can be given on these upgrades?John C., I'll be calling next week to order the midwoofers.
I did a search on this board for Black Hole 5 but the results are a little fuzzy. Is it (4) 12" x 18" sheets per speaker or per pair? I have seen it both ways on this forum.If it were per pair, then I assume you would cut each sheet in half creating 9" x 12" pieces. Two of these pieces on each side of the speaker in the middle of the cabinet basicly covering 9" x 24" of the sidewall on each side.If it were 4 sheets per cabinet, same as above but the coverage would be 12" x 36" of the sidewall of each speaker.At 4 sheets per speaker that would come to $180 each, is it worth the money?
Hi Brax, at Parts Exress the 1 and a quarter inch sonic barrier 18x24 inch sheets are $24.93 each. Yes it's worth the time, money and effort.
I received the mid woofer drivers, they are VERY nice drivers can't wait to install them. I also picked up Early B's LRC he was selling. Although the center was damaged in shipping (the tweetwer is not working) I hooked it up while waiting for the FedEx claim to be resolved. Even in it's condition, this speaker rocks. It has changed my whole sound stage and I couldn't be more impressed. I can't give the LRC a fair review until it's repaired but at this point I can't see how anyone would pick another model or brand over the LRC. There's still work to be done, upgrade the 40's, have the LCR repaired, replace my pre-pro and get some RM2's for surround duty. The last will need to wait till the dust settles on money already spent or the market rises sharply, but I will not settle for anything less than a full VMPS system.