The tall, thin towers must be anchored to their flat brass bases with ¼" hex-head screws. Some assembly is required before the Radias can be used.
#Bg radia neo3w driver
The crossover uses modified fourth-order Linkwitz-Riley filters, with an in-phase driver connection. Levitsky complements the ribbon with two 6.5"-cone woofers mounted in the 520i's 7.75" by 13.75" lower enclosure, made from MDF. The ribbon itself consists of a diaphragm of polymer film strung with aluminum conductors, which carry the audio signal, suspended between push-pull magnet arrays.
The 520i's ribbon covers the spectrum above 350Hz and fires through a 30mm-wide slot in an aluminum frame.
Levitsky mounted the 520i's ribbon driver in a tall, open aluminum frame to minimize cabinet resonance effects. A line-source speaker radiates a cylindrical wavefront, which suffers milder propagation losses than does a conventional cone driver. This narrow driver offers wider horizontal dispersion than a panel speaker, while suppressing strong early reflections from the floor and ceiling by acting as a line source. (aka BG Corp.), has taken advantage of the slim tower motif in the design of the Radia 520i speaker, which has a 50" midrange-tweeter ribbon driver. Igor Levitsky, speaker designer for Bohlender-Graebener Corp. While these slim speakers fit more easily into home décor and living spaces, to fill out their bass response they depend on being used with the subwoofers that are standard in multichannel systems. Large floorstanding cabinets, required for reproduction of bass frequencies, are being replaced by tall, graceful towers with small footprints. Loudspeaker cabinet design has been strongly influenced by home theater.
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