A few months ago, my son dragged home a set of VMPS RM/2 speakers along with a pair of B&K amps and a B&K preamp. Just got around to hooking them up for a listen. For today, I hooked them up to a Pioneer Sx-650 I had handy, set the pots on the speakers to flat, and let it rip. My oh my, these sound really good. I haven’t tuned the passive radiator, run them in biamp mode, or experimented with placement yet, but if it gets better from here I’m sold. For as big and imposing as they are, they offer a very delicate presentation. I think they’ll be sticking around for a while!
VMPS RM/2, UP and Running
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jazzmans
Super Member
yup, that's an Emit-R tweeter. No infinity branding on it anywhere? interesting.
this is a broken emit-R
and here's one in an Infintesimal IV, so it doesn't have the 'normal' faceplate.
StimpyWan
Addicted Member
That's an awesome find. I'd love a set of RM-2's.
Your pair are 2nd generation. An earlier version, with Bohlender/BG Radia mids came first. The dual spiral ribbon "Emit" tweeters came next, followed later, by a version with a single FST ribbon tweeter, an Aurum Cantus G2Si.
The final mid panels were made by Sonigistix, a Canadian company, from a design licensed through Eminent Technology. They marketed the planar mid panels through their Monsoon brand. They were used in both computer and home speakers.
The 12" carbon fiber woofers, were custom designed by Brian Cheney, and built by Misco Speakers. The exact same 12" woofers and down firing passive radiators, were even used in Brian's Original Subwoofer. So, you should get exceptional bass performance from your speakers, once tuned!
Enjoy!
Your pair are 2nd generation. An earlier version, with Bohlender/BG Radia mids came first. The dual spiral ribbon "Emit" tweeters came next, followed later, by a version with a single FST ribbon tweeter, an Aurum Cantus G2Si.
The final mid panels were made by Sonigistix, a Canadian company, from a design licensed through Eminent Technology. They marketed the planar mid panels through their Monsoon brand. They were used in both computer and home speakers.
The 12" carbon fiber woofers, were custom designed by Brian Cheney, and built by Misco Speakers. The exact same 12" woofers and down firing passive radiators, were even used in Brian's Original Subwoofer. So, you should get exceptional bass performance from your speakers, once tuned!
Enjoy!
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Thank you everyone for the wealth of information. I read through the setup instructions posted online, and I knew that tuning them, achieving proper placement and getting them biamped would be a time consuming task. Time that I just didn’t have yesterday. Hence, the quick listen with the Sx-650. Does anyone know which foam I should use to replace the strips that line each side of the tweeters? It’s becoming soft and gooey.
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StimpyWan
Addicted Member
I've seen people use tweeter diffraction foam rings. You'd just have to clean off the foam strips first. Also be sure the diameters match.
StimpyWan
Addicted Member
Oh, one other diffraction foam possibility, is Sonic Barrier. It's a damping foam, sold by Parts Express. They have a 1/2" foam, that should be the correct thickness. You could cut it into strips, of the correct length, and stick it on, as it has an adhesive backing.
StimpyWan
Addicted Member
Hi...can you tell me which foam you ended up using? My foam also dry-rotted on these...
StimpyWan
Addicted Member
Brian probably used whatever type of foam he could find. He was not a guy worried about aesthetics. Regardless, Madisound sells Tweeter Diffraction Rings, that would probably work. Round, instead of strips. But, one around each tweeter should do the job.
Good luck.
Thanks!
fredgarvin
Super Member
On my R626's which had the foam removed by the previous owner, I used self adhesive foam weather stripping.