PDR 1,194 Posted February 10, 2009 Posted February 10, 2009 Heres a one page snip on AVGuide that I came across where Bob talks a bit about his first speaker design. http://www.avguide.com/forums/carver-crm-speaker-review Perry 1
TNRabbit 371 Posted February 10, 2009 Posted February 10, 2009 Wow; I'd been all over the internet searching for stuff on Bob but that's the first time I've seen that one; thanks!
RichP714 3,163 Posted February 10, 2009 Posted February 10, 2009 Interesting read; it somehow landed me here: http://www.newformresearch.com/technology.htm anybody hear of these? A ribbon that efficient and easy to drive would be a godsend
maddmaxxx 39 Posted February 10, 2009 Posted February 10, 2009 Interesting read; it somehow landed me here: http://www.newformresearch.com/technology.htm anybody hear of these? A ribbon that efficient and easy to drive would be a godsend -i didnt read the R factor...and not FS by themselves ? -maybe my eyes are too tired :-#
RichP714 3,163 Posted February 10, 2009 Posted February 10, 2009 They have a few different models. ranging 5R to 8R and ruler flat; the efficiency is so-so 89db/w/m to pretty good 93 /3/m. Like all ribbons, they are NOT fs, they usually have a sub-box underneath them )like the ALS-III's
RichP714 3,163 Posted February 10, 2009 Posted February 10, 2009 A review from AIG: http://www.audio-ideas.com/reviews/loudspeakers/newform_r645.html
PDR 1,194 Posted February 10, 2009 Author Posted February 10, 2009 Rich, do you think they would need a sub? 2x 6" scanspeak? I heard a canadian design that had incorporated 2x8" ( I beleive they were scanspeak)just last week, and I thought they were just cutting it. Perry
RichP714 3,163 Posted February 10, 2009 Posted February 10, 2009 My Cornwall II towers use two 15 inch per channel woofs, and I think they could use a sub! The review says they are 2 dB down at 25Hz, which seems amazing for 2 6" drivers. I'd be VERY interested in hearing them......
RichP714 3,163 Posted February 11, 2009 Posted February 11, 2009 This company, and their idea (a monopole ribbon driver that's high efficiency and easy to drive) has the hook in my mouth. a flat 7R ribbon with 94db/w/m sensitivity might actually be the ticket eh? I read somewhere on their site that they almost resurrected Apogee.
maddmaxxx 39 Posted February 11, 2009 Posted February 11, 2009 -them 45" ribbons are $2300 a pair -bg 48"ers are $1330 pr [4 ohm] deliv'd [stats at partsexpress] -if one has heard bg's...go lo ohm amp/s -thats just me tho o:)
RichP714 3,163 Posted February 11, 2009 Posted February 11, 2009 A bit pricier, but much more efficient and easier to drive 8)
PDR 1,194 Posted February 11, 2009 Author Posted February 11, 2009 Rich, the fellow that designed my arrays...Rick Craig...built his first array with these ribbons. Heres a link to page with a picture of it, and a bit of discussion. If you would like give him a call to discuss the pros & cons.....really nice guy. http://www.audiocircle.com/circles/index.php?topic=62481.0 Perry
RichP714 3,163 Posted February 11, 2009 Posted February 11, 2009 This response from that thread sounds very promising..... "I'm using them with the Behringer DCX2496 crossover and two amplifiers. The cabinets are extremely dead and an infinite baffle. I think he is using 1 "MDF and a heavy bracing pattern? They don't have a square edge or corner and they are heavy. Mine are without the bottom two woofers and the oak on the ribbons along with the complete alignment with the woofers ties in really nice for the eye. I've used PMC's, B&W's and Magnepan's as well as lot's of others. The largest Magnepans that I had were the Tympani 4A's with the 60" ribbon and midrange panel on the same frame and two bass frames on each side for a total of 6' x 7' of speaker panels on each side. I spent hours and hours trying to tweak their position (same with every other speaker) to balance bass, imaging and depth. The Linesource design gives me the plus'es of the big Magnepan's without any of the minuses. " I just might have to save up pennies for this..........
RichP714 3,163 Posted February 11, 2009 Posted February 11, 2009 Same guy, later in his post....I think he likes them ...... "If I had to give up all of my higher end equipment except for one thing, it would be these speakers I'd keep. I would rather listen to an "off the shelf" receiver through these than have $100,000 worth of front-end electronics running any other speakers that I've owned. "
BillD 239 Posted February 11, 2009 Posted February 11, 2009 I think any discerning audiophile would say exactly that. Speakers are at least 80% (to me) of what makes my system sound good. I'm sure it would sound good with many amps and preamps.
RichP714 3,163 Posted February 11, 2009 Posted February 11, 2009 ok....maybe I'm getting myself a BIT worked up
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