Plans for a mid-bass tractrix horn?

jdubs · 27th June 2011, 11:10 PM

Guys, I want to pursue something like this:

Bass cabinets

But I need better plans. Is there anything else out there like it? Seems pretty ideal for blending with my Unity horns at ~300hz....and it goes down low (enough - 45-50hz).

Thanks!
Jim

moray james · 28th June 2011, 12:30 AM

Dual 15 PPSL is probably your best be to match up with a Unity Horn as it will provide uniform dispersion between the sub and the horn.

jdubs · 28th June 2011, 01:53 AM

Moray, can the dual 15 PPSL run up high enough (300hz or so), frequency-wise, though - and if so, does it sound good that high?

Thanks for the idea.

-Jim

WithTarragon · 28th June 2011, 02:03 AM

The PPSL should be able to reach up to 300Hz, but it really depends on the drivers and the geometry of the cabinet's slot.

I don't think I agree with the above statement that the dispersion is necessarily going to match between the two sections.

jdubs · 28th June 2011, 04:09 PM

Guys, given my application, what would be the recommended PPSL design and 15" driver complement?

Thanks,
Jim

fmena · 28th June 2011, 05:01 PM

See link for 80Hz midbass horn (click sidebar link for diy 80 Hz midbass horn)

inlowsound.com

Hope this helps

Cheers
FM

WithTarragon · 28th June 2011, 05:59 PM

Quote:

Originally Posted by jdubs

Guys, given my application, what would be the recommended PPSL design and 15" driver complement?

Thanks,
Jim

Don't limit your selection to just 15in drivers.
Do a search here (and audio asylum) for PPSL and DJK.

moray james · 28th June 2011, 07:24 PM

Expo 15 since this is what you were asking for I think.
Info on how to blend a PPSL woofer with a Unity Horn about as good as it gets.
William Cowan's Homepage look under heading of Unity Horn. Best regards Moray James.

Brett · 29th June 2011, 04:50 AM

Quote:

Originally Posted by moray james

Info on how to blend a PPSL woofer with a Unity Horn about as good as it gets.
William Cowan's Homepage look under heading of Unity Horn. Best regards Moray James.

Sounds terrific, but it's not push pull.

jdubs · 29th June 2011, 05:13 PM

Guys, I like Eminence drivers...how about plans for 15" Eminence Kappa PPSL? I've done a LOT of searching and can't find actual plans for such cabinets.

Thanks,
Jim

27th June 2011, 11:10 PM	#1
jdubs diyAudio Member Join Date: Jul 2004 Location: NYC	Plans for a mid-bass tractrix horn? Guys, I want to pursue something like this: Bass cabinets But I need better plans. Is there anything else out there like it? Seems pretty ideal for blending with my Unity horns at ~300hz....and it goes down low (enough - 45-50hz). Thanks! Jim

28th June 2011, 12:30 AM	#2
moray james diyAudio Member Join Date: Aug 2003 Location: Calgary on the Bow	Dual 15 PPSL is probably your best be to match up with a Unity Horn as it will provide uniform dispersion between the sub and the horn. __________________ moray james

28th June 2011, 05:01 PM	#6
fmena diyAudio Member Join Date: Nov 2004 Location: Guelph, Ontario	80 Hz midbass horn? See link for 80Hz midbass horn (click sidebar link for diy 80 Hz midbass horn) inlowsound.com Hope this helps Cheers FM __________________ Cheers FM

28th June 2011, 07:24 PM	#8
moray james diyAudio Member Join Date: Aug 2003 Location: Calgary on the Bow	Expo 15 since this is what you were asking for I think. Info on how to blend a PPSL woofer with a Unity Horn about as good as it gets. William Cowan's Homepage look under heading of Unity Horn. Best regards Moray James. __________________ moray james

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28th June 2011, 01:53 AM	#3
jdubs diyAudio Member Join Date: Jul 2004 Location: NYC	Moray, can the dual 15 PPSL run up high enough (300hz or so), frequency-wise, though - and if so, does it sound good that high? Thanks for the idea. -Jim

28th June 2011, 02:03 AM	#4
WithTarragon diyAudio Member Join Date: Jun 2007	The PPSL should be able to reach up to 300Hz, but it really depends on the drivers and the geometry of the cabinet's slot. I don't think I agree with the above statement that the dispersion is necessarily going to match between the two sections.

28th June 2011, 04:09 PM	#5
jdubs diyAudio Member Join Date: Jul 2004 Location: NYC	Guys, given my application, what would be the recommended PPSL design and 15" driver complement? Thanks, Jim

29th June 2011, 05:13 PM	#10
jdubs diyAudio Member Join Date: Jul 2004 Location: NYC	Guys, I like Eminence drivers...how about plans for 15" Eminence Kappa PPSL? I've done a LOT of searching and can't find actual plans for such cabinets. Thanks, Jim

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