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Push-pull for pneumatic symmetry at VLF [message #18531 is a reply to message #18529]

Mon, 30 January 2006 22:55

Wayne Parham
Messages: 18695
Registered: January 2001

Illuminati (33rd Degree)

Hey, I just thought of something. You have two woofers, so run 'em in push-pull. That provides pneumatic symmetry essentially by having a "strong" driver and a "weak" driver on each half-cycle. They'll combine well at very low frequencies. Seems to me that a shorting ring must work better higher up, but down low the push-pull idea is probably best. Be interesting to measure and find out where the transition frequency is, if there is one, but I would also guess that driver position and orientation would matter a lot. Anyway, it's a thought.

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[Message index]

		And now for something completely different ...... By: Martin on Sat, 28 January 2006 09:53
		Cool! By: Wayne Parham on Sat, 28 January 2006 10:20
		Re: Cool! By: Martin on Sat, 28 January 2006 10:28
		Re: Cool! By: Wayne Parham on Sat, 28 January 2006 10:39
		Re: And now for something completely different ...... By: Manualblock on Sat, 28 January 2006 11:06
		Re: And now for something completely different ...... By: akhilesh on Sat, 28 January 2006 14:56
		Re: And now for something completely different ...... By: Martin on Sun, 29 January 2006 05:48
		Re: And now for something completely different ...... By: akhilesh on Sun, 29 January 2006 21:54
		Re: And now for something completely different ...... By: Martin on Mon, 30 January 2006 10:53
		LF driver By: colinhester on Sun, 29 January 2006 12:10
		Re: LF driver By: Martin on Sun, 29 January 2006 17:50
		Re: LF driver By: colinhester on Sun, 29 January 2006 19:35
		Re:Also look at these drivers By: Bill Epstein on Mon, 30 January 2006 05:40
		Re:Also look at these drivers By: Martin on Mon, 30 January 2006 10:48
		50Hz - 200Hz By: Wayne Parham on Mon, 30 January 2006 11:32
		Re: 50Hz - 200Hz By: Martin on Mon, 30 January 2006 17:47
		Re: 50Hz - 200Hz By: Wayne Parham on Mon, 30 January 2006 17:50
		Re: 50Hz - 200Hz By: Martin on Mon, 30 January 2006 19:20
		Re: 50Hz - 200Hz By: Wayne Parham on Mon, 30 January 2006 20:38
		Push-pull for pneumatic symmetry at VLF By: Wayne Parham on Mon, 30 January 2006 22:55
		Re: Push-pull for pneumatic symmetry at VLF By: Floyd Andrews on Tue, 31 January 2006 10:51
		Re: Push-pull for pneumatic symmetry at VLF By: Wayne Parham on Tue, 31 January 2006 12:42
		Re: LF driver By: Martin on Mon, 30 January 2006 10:46
		Re:"...2 down and one to go, Dorothy Kilgallen..." By: Bill Epstein on Mon, 30 January 2006 05:57
		Re:"...2 down and one to go, Dorothy Kilgallen..." By: Martin on Mon, 30 January 2006 10:50
		Re:"...2 down and one to go, Dorothy Kilgallen..." By: MWG on Tue, 31 January 2006 22:14
		Re:Monty Python! By: Manualblock on Mon, 30 January 2006 11:47
		Re:Monty Python! By: Wayne Parham on Mon, 30 January 2006 12:35
		Re:Monty Python! By: Manualblock on Mon, 30 January 2006 16:01
		Re:Monty Python! By: Wayne Parham on Mon, 30 January 2006 17:59
		Re:Monty Python! By: Manualblock on Tue, 31 January 2006 07:09
		Re:Monty Python! By: Wayne Parham on Tue, 31 January 2006 08:49
		Re:Monty Python! By: Manualblock on Tue, 31 January 2006 11:31
		Re: And now for something completely different ...... By: footstony on Mon, 30 January 2006 18:44
		Re: And now for something completely different ...... By: Martin on Mon, 30 January 2006 19:18
		Re: And now for something completely different ...... By: footstony on Mon, 30 January 2006 22:15
		Re: And now for something completely different ...... By: shayne yasinski on Tue, 31 January 2006 23:03

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