Posted by spkrman57 on July 24, 2002 at 07:53:08

Wayne,
I will first admit you like 2-way systems (Yes, I love my 3677's w/2226 and 2418/2373-maybe like first cousin of your Pro 4 Pi). I have various speakers here and there in my house and was wondering about a 1 Pi with a 1st order low-pass on a 15" mated with a 1st order high pass on the Alpha 8. Actually, I was thinking 6 mh coil on Jbl 2205A and 47 ufd cap on the Alpha 8. (these values were picked as closest matching components I have in-house at moment and seemed to maybe mesh somewhere around 300 hz. The Alpha 8 and KSN-1038 would be housed in a sub-enclosure within the 2205's enclosure. I looked at your 4 Pi plans (1982w/2205-x1/2105-x2/KSN-1041-x2) and then it hit me, I liked the idea using the Alpha 8 instead of 2105(x2) and the KSN-1038 you use to match up the Pi 1 with could be used instead of KSN-1041(x2). I think this would be a great combination. The entire setup would be no larger than your orig 4 Pi (of 1982) being around 2 to 2 1/2 cubic '. Just my lone "Braincell" running loose again. But, seriously, I would love to hear comments on this. This would be cheaper to some folks than buying compression driver and horn, and crossover parts I think would be cheaper. You use 1.8 mh coil on JBL 2205A/H for psuedo (shave midrange only). You used a 3.6 mh coil on your (1982) 2205A/H for 1st order crossover. but you had both 2105's shunted with cap and resistor in series with each other through I think (off top of my head - memeory shortage here) 1 mh coil and 8 ufd cap. I really liked the piezo crossover (I think 18db/oct RC network). Could the Ist order solution I gave work with only coil on 15" and cap on 8" using natural rolloff for the rest???????
Thanks for listening.
Capt Ron

• Re: Some questions to Wayne about variations of this idea - Erik Johansson 13:55:02 07/29/02 (4)
  • Theater three π vs. four π - Wayne Parham 23:36:11 07/29/02 (3)
    • Re: Theater three π vs. four π - Erik Johansson 00:32:10 07/30/02 (0)
    • Re: Theater three π vs. four π - Erik Johansson 00:27:56 07/30/02 (1)
      • Theater three π, Theater four π and Thermionic four π - Wayne Parham 01:08:30 07/30/02 (0)
• Re: One Pi with sub in one cabinet (ie: 3-way) - Wayne Parham 14:55:54 07/24/02 (3)
  • Re: One Pi with sub in one cabinet (ie: 3-way) - spkrman57 09:03:50 07/26/02 (1)
    • Re: One Pi with sub in one cabinet (ie: 3-way) - Wayne Parham 14:07:54 07/26/02 (0)
  • Re: One Pi with sub in one cabinet (ie: 3-way) - Chris R. 10:27:35 07/25/02 (0)