Horizontal Driver Placement

[chichi]

So, I have 12 of these Hi-Vi B3Ss here that I purchased for use in a Christmas present project for my father-in-law. I decided, to instead, give him my small bookshelf 2-ways (using the DC28 and the RS125) after a crossover rework that seemed to really do the speakers justice. Only thing is, those bookshelves served as my center channel.

Now I need a center channel.

Being impressed with the center channel that Darren @ PE created, I figured I might have the perfect solution to my quandry. After reading the article on non-domes over at <A HREF="http://www.zaphaudio.com">www.zaphaudio.com</A>; I purchased a Neo3PDR to serve as the tweeter.

I've modeled different wiring and crossover schemes, and have decided on a series-parallel (for the Hi-Vi's) wiring scheme (6 ohms) with a 2 way crossover. I wanted to try a 2.5-way setup, with 4 of the innermost drivers (wired in an 8-ohm configuration) stepping in at 2500Hz, but the final impedance was quite low with the outer drivers in a 4-ohm series-parallel wiring scheme.
The enclosure will be 50.5" wide, 12" deep, and tall enough to accomodate the Neo's waveguide faceplate (dimensions match my Mitsu's top panel).

Should I consider this setup a type of horizontal line array? Will the dispersion characteristics of the Neo change the need for center-to-center placement? Should I tune the enclosure for an F3 of 70Hz (when taking into account what was said at <A HREF="http://zaphaudio.com/audio-speaker18.html">http://zaphaudio.com/audio-speaker18.html</A> about the B3S)? Does this sound plain stupid? Thanks.

[biff]

> So, I have 12 of these Hi-Vi B3Ss here that
> I purchased for use in a Christmas present
> project for my father-in-law. I decided, to
> instead, give him my small bookshelf 2-ways
> (using the DC28 and the RS125) after a
> crossover rework that seemed to really do
> the speakers justice. Only thing is, those
> bookshelves served as my center channel.

> Now I need a center channel.

> Being impressed with the center channel that
> Darren @ PE created, I figured I might have
> the perfect solution to my quandry. After
> reading the article on non-domes over at
> <A HREF="http://www.zaphaudio.com">www.zaphaudio.com</A> ; I purchased a Neo3PDR to
> serve as the tweeter.

> I've modeled different wiring and crossover
> schemes, and have decided on a
> series-parallel (for the Hi-Vi's) wiring
> scheme (6 ohms) with a 2 way crossover. I
> wanted to try a 2.5-way setup, with 4 of the
> innermost drivers (wired in an 8-ohm
> configuration) stepping in at 2500Hz, but
> the final impedance was quite low with the
> outer drivers in a 4-ohm series-parallel
> wiring scheme.
> The enclosure will be 50.5" wide,
> 12" deep, and tall enough to accomodate
> the Neo's waveguide faceplate (dimensions
> match my Mitsu's top panel).

> Should I consider this setup a type of
> horizontal line array? Will the dispersion
> characteristics of the Neo change the need
> for center-to-center placement? Should I
> tune the enclosure for an F3 of 70Hz (when
> taking into account what was said at
> <A HREF="http://zaphaudio.com/audio-speaker18.html">http://zaphaudio.com/audio-speaker18.html</A>
> about the B3S)? Does this sound plain
> stupid? Thanks.
The neo 3s vertical and horizontal dispersion are almost identical, so shouldn't make a difference.