CDC, according to the Brentworth website, their models use a 6.5" cone single-driver and a combination of aperiodic and transmission-line loading, called BSL. They are not planar types.
How do you make an aperiodic transmission line ? I would assume that the TL was terminated in some type of resistive ( probably stuffed ) vent.
Kind of reminds me of the Shahinian Obelisk. This is a TL that terminates into a passive radiator. Both would be somewhat out of the ordinary approaches. Then again, TL's are not very mainstream to begin with. Sean >
Sean, they don't give the details on the website, other than it is a line with "valves" to control air flow. That sounds like what you are talking about with the stuffing. I've never experimented with something like that before. It seems like an interesting concept, but I don't know how well it would work.
"valves" to control air flow? Sounds like the the old Proacs(?) with straws stuffed in the ports (semi ports or multi ports or semi passive radiators?).
Learn something new everyday. And I thought that the covering on Brentworth's opening was the driver. I have only heard 2 SET as dealers don't carry this stuff. Sam Tellig talked with Mike Sanders re Quicksilver Mini Monos / March 2001. Page 36 I quote: "The distortion is so high with Single-ended that when you put negative feedback around it, you get distortion of distortion. . . The distortion is multiplied so the amplifier sounds worse" "The annoying thing is the higher distortion, because you don't get the distortion cancellation that you do with push pull. . . So you can't get rid of the distortion of single-ended with feedback: after a while, that distortion just eats away at you". This is about all I know about SET. I've only been in this hobby 1 year. Sometimes I think I should've gotten another boom box :) Went to 2 live shows last month and the musicians and singer were playing through mics / amplifiers / speakers and even though their systems really did have a lot of distortion compared to audiophile stuff somehow it was better. Seemed like that "immediacy" thing people talk about with SET. So I'm interested in SET stuff.
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