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Re: 4 Pi Design Questions [message #64650 is a reply to message #64648]

Fri, 12 November 2010 07:52

Wayne Parham
Messages: 18791
Registered: January 2001

Illuminati (33rd Degree)

Nichol1997 wrote on Thu, 11 November 2010 21:11

By the way, I swapped the 10uF caps to the 20uF caps and I haven't noticed much difference. Of course it has been 5 months since I heard them with the old caps so that could be part of the reason.

It's very subtle, in fact, I'm not sure that even describes it. In some listening positions, it does nothing at all. The only thing that's changed is the position of the forward lobe, shifted slightly upward.

The original cap had the forward lobe pointing down about 5°. The pattern was good from about -30° to +20°. The new cap centers the forward lobe, so the pattern is good from -25° to +25°. If you're not listening way above or way below the speaker, it sounds the same.

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[Message index]

		4 Pi Design Questions By: Nichol1997 on Sun, 17 January 2010 22:09
		Re: 4 Pi Design Questions By: Nichol1997 on Mon, 18 January 2010 06:36
		Re: 4 Pi Design Questions By: Wayne Parham on Mon, 18 January 2010 08:46
		Re: 4 Pi Design Questions By: Nichol1997 on Wed, 20 January 2010 20:59
		Re: 4 Pi Design Questions By: Wayne Parham on Wed, 20 January 2010 21:09
		Re: 4 Pi Design Questions By: Nichol1997 on Thu, 01 April 2010 21:15
		Re: 4 Pi Design Questions By: Wayne Parham on Fri, 02 April 2010 09:25
		Re: 4 Pi Design Questions By: Nichol1997 on Fri, 02 April 2010 20:58
		Re: 4 Pi Design Questions By: Wayne Parham on Sat, 03 April 2010 09:32
		Re: 4 Pi Design Questions By: Nichol1997 on Wed, 07 April 2010 21:17
		Re: 4 Pi Design Questions By: Wayne Parham on Wed, 07 April 2010 21:55
		Re: 4 Pi Design Questions By: Nichol1997 on Sun, 20 June 2010 08:18
		Re: 4 Pi Design Questions By: Wayne Parham on Sun, 20 June 2010 08:54
		Re: 4 Pi Design Questions By: Nichol1997 on Thu, 11 November 2010 21:11
		Re: 4 Pi Design Questions By: Wayne Parham on Fri, 12 November 2010 07:52
		Re: 4 Pi Design Questions By: Psychoacoustic on Thu, 11 November 2010 22:06
		Re: 4 Pi Design Questions By: Doc Jr 8156 on Fri, 12 November 2010 09:41
		Re: 4 Pi Design Questions By: Wayne Parham on Fri, 12 November 2010 14:44
		Re: 4 Pi Design Questions By: Nichol1997 on Thu, 17 May 2012 19:38
		Re: 4 Pi Design Questions By: Wayne Parham on Thu, 17 May 2012 22:46
		Re: 4 Pi Design Questions By: Nichol1997 on Fri, 01 June 2012 19:30
		Re: 4 Pi Design Questions By: Wayne Parham on Fri, 01 June 2012 21:35
		Re: 4 Pi Design Questions By: mantha3 on Sat, 02 June 2012 08:56
		Re: 4 Pi Design Questions By: Wayne Parham on Sat, 02 June 2012 10:30
		Re: 4 Pi Design Questions By: Nichol1997 on Mon, 18 June 2012 19:50
		Re: 4 Pi Design Questions By: Wayne Parham on Mon, 18 June 2012 21:12
		Re: 4 Pi Design Questions By: mantha3 on Tue, 19 June 2012 07:52
		Re: 4 Pi Design Questions By: Wayne Parham on Tue, 19 June 2012 07:55
		Re: 4 Pi Design Questions By: Nichol1997 on Tue, 19 June 2012 19:08
		Re: 4 Pi Design Questions By: Wayne Parham on Tue, 19 June 2012 21:34
		Re: 4 Pi Design Questions By: Nichol1997 on Sun, 24 June 2012 20:04
		Re: 4 Pi Design Questions By: Nichol1997 on Sun, 24 June 2012 20:08
		Re: 4 Pi Design Questions By: Wayne Parham on Mon, 25 June 2012 07:48
		Re: 4 Pi Design Questions By: mantha3 on Mon, 25 June 2012 17:15
		Re: 4 Pi Design Questions By: Wayne Parham on Mon, 25 June 2012 18:12
		Re: 4 Pi Design Questions By: mantha3 on Fri, 31 August 2012 15:13
		Cabinet design, port placement and internal standing waves By: Wayne Parham on Fri, 31 August 2012 18:28
		Re: 4 Pi Design Questions By: mantha3 on Fri, 31 August 2012 18:39
		Re: 4 Pi Design Questions By: Wayne Parham on Fri, 31 August 2012 18:51
		Re: Cabinet design, port placement and internal standing waves By: dheflin44 on Wed, 27 February 2013 15:16
		Re: Cabinet design, port placement and internal standing waves By: Wayne Parham on Wed, 27 February 2013 15:50
		Re: Cabinet design, port placement and internal standing waves By: dheflin44 on Wed, 27 February 2013 17:06
		Re: Cabinet design, port placement and internal standing waves By: Wayne Parham on Wed, 27 February 2013 17:25

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