BG feels that Teonex can withstand higher temperatures and is stronger than the Mylar film used in earlier ribbon designs.īG set out to design a ribbon tweeter with smooth frequency response, low noise, wide horizontal dispersion, and high efficiency, all at low cost. Second, BG makes their diaphragms of Teonex film, developed by DuPont in the 1990s. Magnets made of neodymium have magnetic energy 20–30 times greater than the ceramic magnets used in the ribbons of the 1970s and '80s. First, neodymium has become less costly, making it viable for use in the motor structure of ribbon tweeters. It can be energized more quickly, stores much less energy and inertia, can stop vibrating sooner, and its decay pattern is cleaner.īG credits two major developments in materials science over the last two decades that have enabled further advancement in ribbon technology. Thus, according to BG, the tweeter's mass is comparable to that of the air that is vibrating along with the diaphragm. The mass of BG's tweeter diaphragm is 30–50 times less than that of a typical dome tweeter. The Z1 ($499/pair), the first model in BG's affordable Z series, is a fairly unassuming shielded bookshelf speaker in which BG's ribbon tweeter is coupled with a 5.25" aluminum-cone woofer.īG feels strongly that a ribbon driver is the best way to reproduce midrange and high frequencies. In addition to a line of conventional speaker pairs-the flagship of which, the Radia 520i ($4000/pair), Larry Greenhill reviewed in December 2004-BG manufactures a wide range of in-wall, on-wall, and custom-installation speakers. "Sounds good," said I, and resumed my ivory duties.īohlender-Graebener Corporation, now known as BG Corp., is a Nevada-based company that since 1994 has produced a broad range of loudspeakers, all of them featuring BG's proprietary ribbon-tweeter technology. "It's an interesting little bookshelf speaker featuring a ribbon tweeter." Hmm-an affordable bookshelf speaker matching a ribbon tweeter to a dynamic woofer? Very interesting. As JA adjusted his microphones and I became increasingly nervous about the running, jumping kids splashing chlorinated water on his Nagra digital recorder, he asked me if I'd like to review the Z1 loudspeaker from BG Corp. is their website.Last summer, John Atkinson and I were playing a jazz gig poolside at my local club, and during a break we began discussing equipment. I turn them on at a low/medium level all day long. Double what the manual says IMO (100 hours). ![]() But, you WILL need a subwoofer to enjoy these with any kind of music. These speakers, from the smallest set to the flagship model, don't have an ounce of bass. Also, you will hear everyone say that they will need a powered sub. If you plan to krank them, they will need a 4 ohm stable load at a minimum to avoid shutting down your receiver. True for every speaker that better equipment will make them sound better, but they will run on standard receivers. Some will say they require expensive equipment to sound good. ![]() Bohlender Graebener speakers come standard with a LIFETIME warranty. Magnepans and ML speakers are much more fragile. Martin Logan's are said to be good but only for softer music. All their speakers are way under rated and under priced IMO. Just bought a set of Radia 520's yesterday believe it or not. I've owned 3 sets of BG Radia speakers from Bohlender Graebener. I always recomend a sub but BG is particualrly weak on the low end. You need to budget in a sub when going with BG. I always know what my customer is getting when I recommend BG. They stand behind their products with a lifetime warranty and offer strong customer support. They offer a unique sound that is very forgiving to your room and seating arrangement. Why do I carry them? Sound wise I prefer them over the other planar brands out there. there's not a lot of margin compared to other more traditional brands and BG's demo discount program is one of the worst I've ever seen (they are working on this by the way). IMO the reason that a lot of dealers don't carry them. There aren't a lot of dealers out there so it may be hard to demo a wide variety of their models. They look great, sound great, and are unique. Of course, the more power the better !Īs far as to "what most people are saying" I'd like to see how many "most people" have actually heard and listened to BG's high end products. A $1000 receiver should provide enough power to even their top models. ![]() They aren't thirsty for power and are fine with an 8 ohm receiver. Some of their higher end models are amazing because they virtually have no sweet spot at all. I am a BG dealer and thus am very familiar with their products.
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