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Stimpy, can you, or anyone with the knowledge, tell me the differences in the tweeter application in the last two RM2 versions you just posted? The black pair have what appears to be a Fountek or ? unit while the oak veneered pair have the round ribbons that Brian used in many designs. I would love to try a pair and have room for them or possibly a pair of RM-30's. Super Towers or RM-40's would be too big for my room. Keeping my eye open.oldhvymec, you got yer ears on? Got an opinion on the various tweeters Brian used over the years?
Pointing these out. Santa Barbra area VMPS RM-40's without outboard crossovers. Asking $1,500 https://santabarbara.craigslist.org/ele/6688503310.html Too far for me and I am pretty happy with the size and performance of the RM-30's.
VMPS RM40 Ribbon Speakers - (Goleta, CA) $1500https://santabarbara.craigslist.org/ele/d/vmps-rm40-ribbon-speakers/6688503310.html"Considered one of the best speakers ever builtThese come with outboard cross overs New they were $7000The RM 40 was the centerpiece of our 2002 Consumer Electronics Show demonstration room which won "Best of CES" from TechTV, the media arm of the Electronics Industry Association, host of the Show. The RM 40 won as best High End Audio product in a field of 261 exhibitors (of all High End products, not just speakers, although our competitors in that regard all ran 5 to 20 times our price) with 35 total products nominated. A field of 26 judges canvassed the Show for winners, giving VMPS the nod in High End Audio.SpecificationsBass: - 25 cm (10") WCF Megawoofer bass, 25 cm (10") WCF midbass, 25cm (10") Passive RadiatorMid: - four rectangular 10 x 20 cm (4 x 8") Neo ribbons, 280 Hz - 6.9 kHzTreble: - FST, 6.9 kHz - 30 kHzImpedance & Sensitivity: - 4 Ohm (3.6 min.) 90 dB/1W/1mPower handling: - 500 W rms / 4 Ohms, 20 W min.Frequency response: - 24 Hz - 25 kHz +0/-3 dBDimensions & Weight: - 168H x 32W x 43D cm, 109 kg (66"H x 13"W x 17"D cm, 240 lbs)Output levels and distortion: - max. 1% THD fullrange / 1W, max. 115+ dB SPL / 1mFinishes: - standard blackThis 109 kg, 168 cm tall floorstanding speaker boasts the 25cm Woven Carbon Fiber Megawoofer lowbass and 25cm WCF midbass in a symmetrical array with four 20cm Neodymium midrange ribbon panels (280 Hz to 7 kHz) and one Free Swinging Tweeter (flat to 25 kHz) in a column only 32 cm wide and 43 cm deep. Thin dimensions and full driver symmetry guarantee pinpoint imaging and a soundstage both wide and deep, with layering and detail that is simply breathtaking. Cabinetry is 38 mm thick MDF baffles (plus 28 mm sides and top) treated with Soundcoat for 10 dB less panel vibration. The result is 24 Hz bass with ultraclean 115 dB/1m output levels at an unprecedented low price for such achievement.There are three ways to operate the RM 40, so-called because of its 40 inch vertical ribbon mid/tweeter array. The first is full range, with a single amplifier as a source. The system presents a steady 4 Ohm load, resistive above 166Hz, with 90dB/1W sensitivity and enormous output and dynamic range. Second, more ambitious audiophiles can easily switch the system to the biamp/biwire configuration and run a separate bass amp through the speaker's passive bass and mid/treble crossovers which, by the way, consist of all premium parts such as Axon polypropylene caps and hi-Q Erse 14 gauge laminated core inductors. The third option is biamping with the passive bass crossover removed, an outboard 24 dB/octave electronic crossover driving the separate bass amp, and a second amp running the ribbon panels through their builtin 6 and 12 dB filters.No matter if your tastes run to high-end Music or Home Theater, once you have heard the sheer responsiveness and velocity of our unique handbuilt woofers, exclusive high efficiency Neo ribbon midranges and spiral ribbon tweeters, you won't want to go back to dynamic speakers regardless of price."
