PA130 MTM - 93dB under $100/pair

max_andrews · 30th January 2008, 08:46 PM

Hey everyone! This is my first post here, I'm a regular over on the parts express forum and John Kelly mentioned I might like it over here too!

This is a simulation I did for a dirt cheap MTM using two 5.25" Dayton PA130 drivers and an ND20FA 3/4" neo tweeter. The box is small and ported, which gives decent extension for the size, but can be better if made a bit larger. These can also work in a REALLY small sealed box for HT use with a sub. Cost is under $100/pair including drivers, crossover components, terminals, and port tubes (everything but the box).

This crossover has 4dB of baffle step simulated for the woofer, bass will be richer if placed near a wall or corner. Thoughts? I'll be building it soon to see if it's viable.

*the shunt capacitor on the woofer circuit should read 17uf, not 18uf

max_andrews · 30th January 2008, 09:07 PM

well for some reason the other image didn't show up...

here's a rendering of the box layout itself (might change this a bit):

and the crossover:

uprilion · 14th March 2012, 10:27 PM

hi ! you should align vertically all the speaker : it's really better for the horizontal directivity, especially in case of MTM

wushuliu · 14th March 2012, 10:51 PM

Ummm, Max has not posted on this or any other forum in over 3 years....

uprilion · 14th March 2012, 10:54 PM

yep, the slight difference between "2008" and "2012"... -_-' ^^

30th January 2008, 08:46 PM	#1
max_andrews diyAudio Member Join Date: Jan 2008	PA130 MTM - 93dB under $100/pair Hey everyone! This is my first post here, I'm a regular over on the parts express forum and John Kelly mentioned I might like it over here too! This is a simulation I did for a dirt cheap MTM using two 5.25" Dayton PA130 drivers and an ND20FA 3/4" neo tweeter. The box is small and ported, which gives decent extension for the size, but can be better if made a bit larger. These can also work in a REALLY small sealed box for HT use with a sub. Cost is under $100/pair including drivers, crossover components, terminals, and port tubes (everything but the box). This crossover has 4dB of baffle step simulated for the woofer, bass will be richer if placed near a wall or corner. Thoughts? I'll be building it soon to see if it's viable. *the shunt capacitor on the woofer circuit should read 17uf, not 18uf

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30th January 2008, 09:07 PM	#2
max_andrews diyAudio Member Join Date: Jan 2008	well for some reason the other image didn't show up... here's a rendering of the box layout itself (might change this a bit): and the crossover:

14th March 2012, 10:27 PM	#3
uprilion diyAudio Member Join Date: Jul 2011 Location: Marseille	hi ! you should align vertically all the speaker : it's really better for the horizontal directivity, especially in case of MTM

14th March 2012, 10:51 PM	#4
wushuliu diyAudio Member Join Date: May 2008 Location: Los Angeles	Ummm, Max has not posted on this or any other forum in over 3 years....

14th March 2012, 10:54 PM	#5
uprilion diyAudio Member Join Date: Jul 2011 Location: Marseille	yep, the slight difference between "2008" and "2012"... -_-' ^^

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