Melon Head's State of the "DUMB" Open Baffle Design

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lol. A 15" on an 18" wide baffle = yuck.

Just 1 driver probably will roll off below 600hz.

Getting the woofer dialed in passively will be tricky,but you could use a 6db active crossover with a bunch of woofer boost.
Even then the woofer crossover point would be far below the main driver.
And the woofer should move a bunch of air compared to the main (more xmax).

For the price of the an15, I'd use a different woofer, maybe even the silver iris woofer, a longer xmax eminence, or even the IB dayton 15".

But hey, maybe not !!!!!!!!!!!!!!

Look into how the silver iris does it.

Norman
 
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I think once you put the cost of postage into the equation then factor in the cost of a more complicated crossover network the price difference is usually quite close..
In my case it worked out cheaper buying two pairs of AN15s rather than going with 1 pair of AN15 and 1 pair of Eminence.


PHY baffle is a great baffle, hard to beat for a single driver.
Once you go 1.5 it opens the door for more options.
 
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This is what I achieved on a narrow baffle.
However I reckon the PHY baffle will be much better.
 

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how are those drivers hooked up ?
A honker inductor across the 15's ?

response looks really good except that 10db hike past 1khz and 10db hump around 300hz.
I'm not sure the huge ob will help it much.
Flat to 45hz, what more do you want out of it ?

Norman
 
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but the an10 +2 x an15 looks real flat 100hz-1khz (minus that crossover hump at 300hz).

Crossover 6db ? You may want to lower the low pass an octave............

but you are right, it is a fullrange driver plus bass assist.
To me, I get nervous when a woofer goes so high, but if it works..........

Norman
 
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Well remember it is not a woofer. It is a fullrange woofer excellent in its own right, manufactured with the same construction, so tonally it is very similar to the 10" so it should mate fairly seemlessly, and indeed it does. The crossover needs more work though
I agree it would be nice to low-pass around 100Hz to 150Hz, and with the PHY baffle I will predict that will be the case

The filters are just Inductors (ie 1st order)
 
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I came real close to buying 4 10" Dayton Pro woofers to mate with a Alpair 12.2 that I have. I have to wait until GB is done. Can't do sh*t without time. The OB you posted looks so good, I cant imagine the Phy being better, but then again, I haven't heard it.
 
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