Yamaha DTXpress/DTXplorer/DTXtreme

> It sounds impressive for computer-system performance. Bose holds the 
> patent on dual-chamber 6th-order design. Though this design is said 
> to increase efficiency and decrease audible distortion, it apparently 
> is a bitch to construct and puts the driver at risk for damage unless 
> the build quality is extraordinary or some serious means of negating 
> the limits on driver excursion enter into it. I've never heard a 
> reputedly high-quality Bose subwoofer in action, but the scuttle is 
> that Bose's transient performance isn't too good, and the overall 
> effect is more suited to something like sound reinforcement than 
> accurate musical reproduction. I've been a high-end audio enthusiast 
> for a long time--listening and reading, anyway--and Bose usually gets 
> short shrift, if any, in the press. 

I remember hearing a really impressive Bose system in Harrogate in the
late 1970s (Annual Hi-Fi show in the UK back then).  It filled a large
hall.  I seem to remember they were always fussy about postioning and
had to be just the right distance from walls - not too far away, not
too close.

> Personally, I 
> don't like boomy and indistinct; I like my toms and kick to have snap 
> and at least a reasonable frequency response. A home theater 
> subwoofer that doesn't have to meet the needs of critical music 
> appreciation could easily thrive on high efficiency and a bottom end 
> of 40Hz or so, even if it really plays only one note. 

I think you are right.  I plugged a CD player into the Logitech and it
isn't what I would call Hi-Fi - I don't think the freqeuncy response
is flat enough for that.  Sub-woofer systems often seem to suffer from
a mid range hole.  But it produces a good range of frequencies without
sloppy bass and LOUD without distortion which is what I wanted.

If you like Hi-Fi, then you might like my Castle Harlech speakers with
two different quarter wave pipes (powered by a 20W class A amplifier).

http://www.castle.uk.com/pages/classic_harlech.htm

Keith.