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Re: 4 Pi and 7 Pi bass response- More similar or different? [message #61596 is a reply to message #61595]

Mon, 21 December 2009 20:55

Wayne Parham
Messages: 18786
Registered: January 2001

Illuminati (33rd Degree)

The seven π cabinet is tuned to 38Hz, same as the four π. JBL specs out 40Hz tuning, which is pretty much the same thing.

As an aside, most of my cabinets are tuned a smidge low, going for a slightly overdamped alignment. My goal is to have smooth rolloff that generally conjugates room gain and is also an easy blend for subs. It's a friendly alignment that is tolerant of electro-mechanical shifts from heat or high-output impedance. Also tends to keep the speaker from sounding thumpy in its early days when the suspension is brand new and still too stiff.

Room gain, pressure region, modal region and reverberent region

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[Message index]

		4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Wed, 16 December 2009 22:57
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Thu, 17 December 2009 09:44
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: tom-m on Thu, 17 December 2009 18:32
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Thu, 17 December 2009 19:28
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Thu, 17 December 2009 19:16
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Thu, 17 December 2009 21:12
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Fri, 18 December 2009 09:09
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: tom-m on Fri, 18 December 2009 09:51
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Fri, 18 December 2009 10:41
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: tom-m on Fri, 18 December 2009 16:52
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Fri, 18 December 2009 18:44
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: tom-m on Mon, 28 December 2009 13:00
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Mon, 28 December 2009 13:10
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Mon, 21 December 2009 19:44
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Mon, 21 December 2009 20:55
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: feket663 on Sun, 27 December 2009 11:02
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Sun, 27 December 2009 12:12
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: feket663 on Sun, 27 December 2009 14:53
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Sun, 27 December 2009 17:52
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: feket663 on Mon, 28 December 2009 14:56
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Mon, 28 December 2009 21:41
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Thu, 31 December 2009 17:37
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Fri, 01 January 2010 08:39
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Tue, 12 January 2010 22:39
		Cornerhorn Ruminations By: Wayne Parham on Wed, 13 January 2010 08:56
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Wed, 13 January 2010 18:14
		Room Treatments By: Wayne Parham on Wed, 13 January 2010 21:25
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Wed, 13 January 2010 22:58
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: tom-m on Wed, 13 January 2010 23:22
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Thu, 14 January 2010 17:30
		seven π photos By: Wayne Parham on Thu, 14 January 2010 19:32
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: tom-m on Fri, 15 January 2010 15:31
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Fri, 15 January 2010 16:55
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: tom-m on Fri, 15 January 2010 22:01
		Cornerhorns and constant directivity By: Wayne Parham on Fri, 15 January 2010 23:50
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Sat, 13 March 2010 04:56
		Crossover considerations - power handling, frequency, slope, etc. By: Wayne Parham on Sat, 13 March 2010 10:35
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Sat, 13 March 2010 17:38
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Infrasonic on Tue, 16 March 2010 17:54
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Tue, 16 March 2010 18:29
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Infrasonic on Tue, 16 March 2010 19:06
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Tue, 16 March 2010 21:15
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Wed, 27 November 2013 20:16
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Thu, 28 November 2013 09:35
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Infrasonic on Wed, 17 March 2010 00:50
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Sun, 06 June 2010 06:25
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Sun, 06 June 2010 09:22
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Mon, 07 June 2010 20:19
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Mon, 07 June 2010 21:01
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Psychoacoustic on Mon, 07 June 2010 21:11
		Re: 4 Pi and 7 Pi bass response- More similar or different? By: Wayne Parham on Tue, 08 June 2010 08:17

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