Hi !
        Ref: your hitting the Phoenix area someday when on the road.
        My house is yours, anytime! We would love to have you. In the
event you have never been to Phoenix before, it is best described as being
"exactly like Las Vegas", except without any of the excitement, 
entertainment, big hotels, big casinos,and interesting/fun  things to do. 
Other than that, they are identical! (Not that bad)8-)
        I never knew the Dolby C was B doubled at different freqs! Hummmm. 
Still, when you start talking about crossovers and high/low pass filters in 
line and trying to add to those after market...it can be a very delicate 
process and easy to goof up what purity and blend of drivers you already 
have. I have heard a simple resistor turn a really exceptional bookshelf (on 
a good stand) from excellent to lifeless blah. Just one little tweak that 
would have seemed to make a logical improvemenet ( but against the advise of 
the factory I hasten to add). Really surprised me, and the gentleman that was 
trying it. So I try to steer away from that as much as possible. I just don't 
have the knowledge to be doing that.
        Most of my speaker building has been with subwoofers. Filtering is a 
pretty straight forward matter with them. There is no real magic. But once 
you get into full range/ 2 or more driver systems, you have to have a pretty 
good idea of what your doing and where you are going with it. Just too easy 
to make a good system sound less than optimum.
        Finally.... On bi-wired, full range speakers, there is both high and 
low pass filtering. Each taking care of its' own range of freqs. This is one 
of the advantages to bi-amping and bi-wiring. One less crossover/filter for a 
given signal to have to pass through, while offering more of cable surface 
area for the signal to pass through. One set of cables goes to the woofers 
and is filtered so only the lower frequecies make it to the driver. While on 
the upper side, an equal signal goes to the mids (if so equipped) and 
tweeters for the midrange and treble. This signal is filtered to eliminate 
bass material so only the midrange and treble signal is passed on to thos 
speakers.
        A single cable (+&-) would cause the highs and mids to first pass 
through the filter for bass and be directed to the filter for mids and higher 
frequencies before being passed on to those drivers.(Slightly 
versimplified).
        I have always believed that the absolute least amount of devices you 
can have in the signals path, whether it be in the amps/preamps/processors, 
etc., or between the amp and the drivers, the better the sound. Am I all wet 
here?
        Cheers, John
--- Maximus/2 3.01
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