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In the Forum: Audio Discussions
In the Thread: The loudspeakers for a powerful SET
Post Subject: LF: the fly in the ointmentPosted by Paul S on: 4/14/2008
Maybe we should just start by trying to think of a viable way to get down to 20 Hz in a reasonably sized enclosure driven by an SET that must also drive the rest of the system.  This was always the sticker for me, and this was a major consideration in my choice of the DEBZ compromises.

I especially like the idea of a melded speaker/amp, with taps appropriate to each section.  The LF section will have to be HEAVY, that's for sure, and I suppose this will also mean amorphous core for LF, as silicon steel or M3, etc. are not optimal above LF.

I agree with paper drivers below HF, except Harbeth seems to have figured out a nice alternative for their 40, some sort of petro/paper, I don't know.  And who knows how this driver type might adapt outside their propritary set of compromises?  I also do not accept - at all - the practical implementations I have heard of the "rigid piston" theory.  Ceramics and metal cones I have heard are all so far out there that I really wouldn't know where to start with one.  No, I think paper, "flexion" nothwithstanding, is the easiest and most fruitful path.  Not to mention that paper can be doped, if desired.

Best regards,
Paul S

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