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Re: 4Pi with feet [message #78273 is a reply to message #78272]

Sun, 03 November 2013 22:52

Wayne Parham
Messages: 18686
Registered: January 2001

Illuminati (33rd Degree)

It's a little hot above 1kHz. I'm not completely comfortable with the measurements because the graphs show more top-octave rolloff than I would expect and that's common with uncalibrated measurement systems and microphones.

But then again, putting aside the top-octave rolloff, the chart looks about right except for that amplitude shift at 1kHz. So that makes me wonder if the woofer is a little low or the tweeter a little high.

What compression driver are you using? What resistor values are installed in positions R1 and R2? Are you sure your woofers have genuine JBL cones with 8Ω voice coils?

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[Message index]

		4Pi with feet By: lucasmateo on Thu, 17 October 2013 10:41
		Re: 4Pi with feet By: lucasmateo on Thu, 17 October 2013 11:03
		Re: 4Pi with feet By: tom-m on Thu, 17 October 2013 15:27
		Re: 4Pi with feet By: lucasmateo on Thu, 17 October 2013 16:25
		Re: 4Pi with feet By: Wayne Parham on Thu, 17 October 2013 16:53
		Re: 4Pi with feet By: lucasmateo on Thu, 17 October 2013 17:16
		Re: 4Pi with feet By: Bill Epstein on Thu, 17 October 2013 20:46
		Re: 4Pi with feet By: lucasmateo on Thu, 17 October 2013 21:46
		Re: 4Pi with feet By: lucasmateo on Fri, 18 October 2013 10:41
		Re: 4Pi with feet By: my0x on Sun, 20 October 2013 20:18
		Re: 4Pi with feet By: shallow pockets on Mon, 21 October 2013 01:04
		Re: 4Pi with feet By: lucasmateo on Sat, 26 October 2013 13:25
		Re: 4Pi with feet By: Wayne Parham on Sat, 26 October 2013 17:30
		Re: 4Pi with feet By: Nick77 on Sun, 27 October 2013 04:10
		Re: 4Pi with feet By: lucasmateo on Sun, 27 October 2013 09:44
		Re: 4Pi with feet By: lucasmateo on Mon, 28 October 2013 07:28
		Re: 4Pi with feet By: Wayne Parham on Mon, 28 October 2013 08:13
		Re: 4Pi with feet By: lucasmateo on Mon, 28 October 2013 14:53
		Re: 4Pi with feet By: Wayne Parham on Mon, 28 October 2013 18:30
		Re: 4Pi with feet By: lucasmateo on Mon, 28 October 2013 19:10
		Re: 4Pi with feet By: Wayne Parham on Mon, 28 October 2013 19:18
		Re: 4Pi with feet By: Bill Epstein on Mon, 28 October 2013 19:28
		Re: 4Pi with feet By: lucasmateo on Mon, 28 October 2013 20:07
		Re: 4Pi with feet By: lucasmateo on Tue, 29 October 2013 18:24
		Re: 4Pi with feet By: Wayne Parham on Wed, 30 October 2013 01:21
		Re: 4Pi with feet By: lucasmateo on Wed, 30 October 2013 08:12
		Re: 4Pi with feet By: lucasmateo on Wed, 30 October 2013 11:06
		Re: 4Pi with feet By: Wayne Parham on Wed, 30 October 2013 12:03
		Re: 4Pi with feet By: Matts on Wed, 30 October 2013 14:06
		Re: 4Pi with feet By: lucasmateo on Wed, 30 October 2013 15:12
		Re: 4Pi with feet By: Matts on Wed, 30 October 2013 17:45
		Re: 4Pi with feet By: lucasmateo on Wed, 30 October 2013 18:29
		Re: 4Pi with feet By: Matts on Thu, 31 October 2013 18:01
		Re: 4Pi with feet By: lucasmateo on Thu, 31 October 2013 19:27
		Re: 4Pi with feet By: my0x on Sat, 02 November 2013 22:15
		Re: 4Pi with feet By: lucasmateo on Sat, 02 November 2013 23:27
		Re: 4Pi with feet By: lucasmateo on Sun, 03 November 2013 16:52
		Re: 4Pi with feet By: Wayne Parham on Sun, 03 November 2013 22:52
		Re: 4Pi with feet By: lucasmateo on Sun, 03 November 2013 23:07
		Re: 4Pi with feet By: Wayne Parham on Mon, 04 November 2013 00:28
		Re: 4Pi with feet By: lucasmateo on Mon, 04 November 2013 08:29
		Re: 4Pi with feet By: Wayne Parham on Mon, 04 November 2013 10:16
		Re: 4Pi with feet By: lucasmateo on Mon, 04 November 2013 14:48
		Re: 4Pi with feet By: Wayne Parham on Mon, 04 November 2013 15:10
		Re: 4Pi with feet By: HPower on Tue, 05 November 2013 08:59
		Re: 4Pi with feet By: lucasmateo on Tue, 05 November 2013 10:24
		Re: 4Pi with feet By: Matts on Tue, 05 November 2013 11:24
		Re: 4Pi with feet By: dheflin44 on Tue, 05 November 2013 12:01
		Re: 4Pi with feet By: lucasmateo on Tue, 05 November 2013 14:14
		Re: 4Pi with feet By: lucasmateo on Fri, 08 November 2013 12:03
		Re: 4Pi with feet By: Wayne Parham on Fri, 08 November 2013 12:38
		Re: 4Pi with feet By: lucasmateo on Fri, 08 November 2013 15:06
		Re: 4Pi with feet By: Wayne Parham on Fri, 08 November 2013 15:17
		Re: 4Pi with feet By: lucasmateo on Fri, 08 November 2013 15:27
		Re: 4Pi with feet By: Wayne Parham on Fri, 08 November 2013 18:38
		Re: 4Pi with feet By: lucasmateo on Sun, 10 November 2013 08:46
		Re: 4Pi with feet By: lucasmateo on Sun, 10 November 2013 11:46
		Re: 4Pi with feet By: Wayne Parham on Sun, 10 November 2013 15:06
		Re: 4Pi with feet By: Duncan McBride on Sat, 16 November 2013 21:34
		Re: 4Pi with feet By: lucasmateo on Sun, 17 November 2013 18:17
		Re: 4Pi with feet By: tubemax on Mon, 25 November 2013 15:16
		Re: 4Pi with feet By: Wayne Parham on Mon, 25 November 2013 17:12
		Re: 4Pi with feet By: tubemax on Tue, 26 November 2013 15:13
		Re: 4Pi with feet By: lucasmateo on Wed, 27 November 2013 07:16
		Re: 4Pi with feet By: Wayne Parham on Wed, 27 November 2013 08:53
		Re: 4Pi with feet By: lucasmateo on Thu, 28 November 2013 21:34
		Re: 4Pi with feet By: Wayne Parham on Fri, 29 November 2013 08:48
		Re: 4Pi with feet By: dmeckstr on Sun, 01 December 2013 01:45
		Re: 4Pi with feet By: lucasmateo on Sun, 01 December 2013 08:16
		Re: 4Pi with feet By: NWCgrad on Wed, 04 December 2013 19:29
		Re: 4Pi with feet By: lucasmateo on Mon, 09 December 2013 16:52
		Re: 4Pi with feet By: Wayne Parham on Tue, 10 December 2013 10:37
		Re: 4Pi with feet By: lucasmateo on Tue, 10 December 2013 13:01
		Re: 4Pi with feet By: Matts on Tue, 17 December 2013 14:13
		Re: 4Pi with feet By: lucasmateo on Tue, 17 December 2013 14:43
		Re: 4Pi with feet By: Matts on Thu, 26 December 2013 16:24
		Re: 4Pi with feet By: lucasmateo on Sun, 30 March 2014 19:03
		Re: 4Pi with feet By: Wayne Parham on Tue, 01 April 2014 10:32
		Re: 4Pi with feet By: Matts on Fri, 04 April 2014 14:30

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