Folded Horn/Bandpass 15" Design Pics.

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ARR_PG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 14 October 2013 Status: Offline Points: 89	Post Options Post Reply Quote ARR_PG Report Post Thanks(0) Quote Reply Posted: 29 October 2019 at 10:42pm
	Here is the displacement. Xmax is 6mm :)

Elliot Thompson Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 02 April 2004 Location: United States Status: Offline Points: 5175	Post Options Post Reply Quote Elliot Thompson Report Post Thanks(0) Quote Reply Posted: 30 October 2019 at 8:30am
	It is good to read you are willing to work with the design/loudspeaker than, scrap the whole idea. Best Regards,
	Elliot Thompson

ARR_PG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 14 October 2013 Status: Offline Points: 89	Post Options Post Reply Quote ARR_PG Report Post Thanks(0) Quote Reply Posted: 30 October 2019 at 10:08pm
	What's a "Second Order" Filter. It's not the same as a Butterworth Filter with an order of 2. Hard to find an answer online. I assume I need a digital xover.

DMorison Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 14 March 2007 Location: Aberdeen Status: Offline Points: 1649	Post Options Post Reply Quote DMorison Report Post Thanks(1) Quote Reply Posted: 30 October 2019 at 10:53pm
	A Butterworth filter with an order of 2 is indeed a second order filter, but it has a Q value of 0.707 rather than the 0.5 you modelled. I don't think a Q of 0.5 matches any of the standard alignments like Butterworth, Bessell etc, so you might want to redo that model with one of the more common types selected instead. Certainly, a DSP based crossover like the Behringer DCX2496 is the easiest way into trying out different filter types and alignments, though if you're really into DIY'ing electronics you can certainly build an analogue line level crossover yourself. Rod Elliott (ESP) has a couple of good articles on this if you want to dig deeper: https://sound-au.com/articles/active-filters.htm https://sound-au.com/articles/state-variable.htm HTH, David.

ARR_PG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 14 October 2013 Status: Offline Points: 89	Post Options Post Reply Quote ARR_PG Report Post Thanks(0) Quote Reply Posted: 30 October 2019 at 11:43pm
	I know logic gates in circuitry. Thats about it. Ill give it a read. Would be sweet to have an internal crossover inside the cab.

ARR_PG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 14 October 2013 Status: Offline Points: 89	Post Options Post Reply Quote ARR_PG Report Post Thanks(0) Quote Reply Posted: 31 October 2019 at 12:27am
	I can do a simulate a filter like this in Ableton Live. Just for the test.

ARR_PG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 14 October 2013 Status: Offline Points: 89	Post Options Post Reply Quote ARR_PG Report Post Thanks(0) Quote Reply Posted: 07 November 2019 at 4:41am
	The cab sounds great! Chuffed.

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