Forgesound

Peter Dodd · 23rd September 2011, 10:17 AM

Hi there people. I have joined up to search out ideas and thoughts on areas of common interest. Wanted a "shed stereo" , got a bit over 7kw with four 18"/800w W bins ,JBL 4733s, twenty something rack spaces of music PC digi EQ / Xover, amps. Cant play with it enough. Have done a few Events and looking at more. If you have experience tuning Ws, I want to hear from you.

Cal Weldon · 26th September 2011, 01:52 AM

Hello Peter.

Peter Dodd · 26th September 2011, 12:46 PM

Hi Cal. I had looked at some of your stuff, interesting.I have four Keele Ws loaded with 18' (18 S ) DAS drivers.I think the box maker thought longer port tubes would be good to go lower. They are dia 85mm as per original(I think) by 240mm long. I feel bigger ports say 102-110 mm dia would be better. I am looking for some one who has experience running tuning software to determine lengths of port to tune to drivers FS which I seem to recall is 34hz.Regards Peter, New zealand.

23rd September 2011, 10:17 AM	#1
Peter Dodd diyAudio Member Join Date: Sep 2011 Location: new zealand	Forgesound Hi there people. I have joined up to search out ideas and thoughts on areas of common interest. Wanted a "shed stereo" , got a bit over 7kw with four 18"/800w W bins ,JBL 4733s, twenty something rack spaces of music PC digi EQ / Xover, amps. Cant play with it enough. Have done a few Events and looking at more. If you have experience tuning Ws, I want to hear from you.

26th September 2011, 01:52 AM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Hello Peter. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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26th September 2011, 12:46 PM	#3
Peter Dodd diyAudio Member Join Date: Sep 2011 Location: new zealand	Hi Cal. I had looked at some of your stuff, interesting.I have four Keele Ws loaded with 18' (18 S ) DAS drivers.I think the box maker thought longer port tubes would be good to go lower. They are dia 85mm as per original(I think) by 240mm long. I feel bigger ports say 102-110 mm dia would be better. I am looking for some one who has experience running tuning software to determine lengths of port to tune to drivers FS which I seem to recall is 34hz.Regards Peter, New zealand.

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