2Pi Tower questions [message #70361] |
Fri, 02 December 2011 17:07 |
Bill Epstein
Messages: 1088 Registered: May 2009 Location: Smoky Mts. USA
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Illuminati (2nd Degree) |
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Wayne, it's been a long time since I built the Towers but IIRC the crossover is first order around 4K with a 1/2 mH coil on the woof?
First, in lite of the post you made recently about more complex crossovers for the comp drivers, how would you fel about
, say, 3rd order BW and lower down as my recent positive experience? Might the Alpha benefit from a lower cutoff?
Second, I'm thinking about stuffing Alpha 12s in the Utah boxes. The 10 & 12 are close enough That I could use them as 2pi tower woofers if the experiment flops?
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Re: 2Pi Tower questions [message #70554 is a reply to message #70549] |
Wed, 21 December 2011 16:54 |
Bill Epstein
Messages: 1088 Registered: May 2009 Location: Smoky Mts. USA
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Illuminati (2nd Degree) |
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Thanks Wayne.
I found that the vintage Utah woofers from Ron sound somewhat "muffled" even with the lower, 1200Hz, crossover. Certainly not what 2226 listeners are used to. Still, the quality of the SB-29 tweeter continues to knock me out, so today I decided to install 10" Alphas in place of the Utahs.
I'll make a Frankenspeaker first, retro-fitting the 10" Alphas to the current 12" sealed cabinets. If I hear more clarity, I'll go ahead and build the 2Pi Towers. I have all the drivers, including a pair of DX-25s, so comparisons will be fun. Since the existing c/o, 4th order L-R is for a 4 ohm woofer, I'll use the Tower crossover as you describe. Let you know how it goes.
Merry Christmas and a healthy and happy New Year to all.
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JBL 2226 [message #70610 is a reply to message #70557] |
Fri, 23 December 2011 21:04 |
spkrman57
Messages: 522 Registered: May 2009
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Illuminati (1st Degree) |
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I think it is the ultimate driver for a 2-way which plays low enough for me in my small living room using a SET amp.
And has a clean midrange response!
Ron sends...
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