anyone tried this m.o.d.o.?

[Tomac]

http://www.wescomponents.com/CTS/QuasiMoDo.htm

it is pretty simple and seems to work fine,maybe not highest end but for such a cheap project i think it's worth of money and effort
anyone build this?

[Nappylady]

Full-range drivers seem to be favorite in dipole arrangements.

My latest project was high-SPL PA dipoles for treble use using 5" full-rangers. Unfortunately, their treble response isn't any better than the famous Radio Shack 8" full-range! (No whizzer, I guess)

I find that by turning the treble knob all the way up and the 500hz mid to -6, I can get pretty good sound out of mine... pictures later.

Full-range drivers are fantastic.

[Ken L]

Dependant on where it was to be used

I would think about it for a while before committing to a design that had a tweeter underneath configuration.

It seems that high pitched sounds emanating from below the height or plane of ear level frequently come across as un- natural.

While I enjoy seeing and hearing innovative designs, this tweeter level thing is something that I don't believe I would want to be in the forefront of.

regards

Ken L

PS if you do build it come back and let us know what you think -

[sreten]

It seems that high pitched sounds emanating from below the height or plane of ear level frequently come across as un- natural.

Tweeters are used below drivers to tilt the polar response
up at crossover, due to the relative offsets of the drivers.

With a piezo horn, with its large offset it should be used above.

I'd suggest checking out baffle step correction circuits for such
a design, the builder appears to be unaware of the problem.

If BSDC is included it also gives an easy way of boosting
treble with circuit modifications rather than an additional driver.

sreten.

[zygibajt]

I know this Monacor SP-200X quite well.
It's a shame to use it with such a cheap tweeter!
Also it works very good in closed box.
It also works fine in very wide open baffle,getting rid of the coloration of the box.

Bartek