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Re: New 3Pi build [message #86518 is a reply to message #86517]

Sat, 11 November 2017 10:36

Wayne Parham
Messages: 18683
Registered: January 2001

Illuminati (33rd Degree)

I love Crown amps and have a couple of them myself. I prefer the older Class AB amps to the Class D amps, but I'll bet if I was lugging them around for gigs I might change my mind. But they're great for all-out SPL, and your speakers will love them.

About the port, the truth is the 2.5" O.D. tube would have worked just fine. The difference from the slight change of Helmholtz frequency is minor - Much less than the fluctuation you'll see from the shifting electro-mechanical parameters as voice coil temperature changes at various power levels. I design all my speakers with a wide margin of tolerance for this kind of shift.

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[Message index]

		New 3Pi build By: tubemax on Sun, 10 September 2017 17:03
		Re: New 3Pi build By: Wayne Parham on Mon, 11 September 2017 08:36
		Re: New 3Pi build By: tubemax on Mon, 11 September 2017 12:34
		Re: New 3Pi build By: Wayne Parham on Mon, 11 September 2017 15:19
		Re: New 3Pi build By: tubemax on Sun, 29 October 2017 16:06
		Re: New 3Pi build By: Wayne Parham on Sun, 29 October 2017 18:41
		Re: New 3Pi build By: tom-m on Tue, 31 October 2017 22:11
		Re: New 3Pi build By: Wayne Parham on Wed, 01 November 2017 12:23
		Re: New 3Pi build By: tubemax on Fri, 10 November 2017 16:12
		Re: New 3Pi build By: Wayne Parham on Fri, 10 November 2017 16:39
		Re: New 3Pi build By: tubemax on Fri, 10 November 2017 17:12
		Re: New 3Pi build By: Wayne Parham on Sat, 11 November 2017 10:36
		Re: New 3Pi build By: tubemax on Sat, 11 November 2017 17:53
		Re: New 3Pi build By: tubemax on Sun, 19 November 2017 16:12
		Re: New 3Pi build By: Wayne Parham on Mon, 20 November 2017 08:39
		Re: New 3Pi build By: tubemax on Mon, 20 November 2017 15:18
		Re: New 3Pi build By: tubemax on Sun, 26 November 2017 10:49
		Re: New 3Pi build By: Wayne Parham on Sun, 26 November 2017 11:46
		Re: New 3Pi build By: tubemax on Tue, 12 December 2017 13:11
		Re: New 3Pi build By: Wayne Parham on Tue, 12 December 2017 15:42
		Re: New 3Pi build By: tom-m on Wed, 13 December 2017 12:22
		Re: New 3Pi build By: tubemax on Tue, 12 December 2017 16:34
		Re: New 3Pi build By: Wayne Parham on Wed, 13 December 2017 08:09
		Re: New 3Pi build By: tubemax on Sat, 16 December 2017 16:05
		Re: New 3Pi build By: tubemax on Sat, 16 December 2017 16:10
		Re: New 3Pi build By: Wayne Parham on Sun, 17 December 2017 09:27
		Re: New 3Pi build By: tubemax on Thu, 28 December 2017 15:13
		Re: New 3Pi build By: tubemax on Sat, 30 December 2017 18:19

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