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Forum: Pi Speakers «»
Posted on: Wed, 31 July 2002 18:08 «»
By: bmar
Re: Active crossover for 4Pi with 2235 Pi sub
Kelly,The best crossover point will be some what dependent on your room. For instance I have wood floors and some low frequnecy boosting problems because of theat. when I crossed at 80 with a 4th order, It still gave me too much around 100-150hz. I found t...
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Forum: Pi Speakers «»
Posted on: Wed, 31 July 2002 10:06 «»
By: LuxmanLover
Active crossover for 4Pi with 2235 Pi sub
What would be the recommended crossover style nad point for a Professional 4Pi with a 2235 loaded Pi-aligned sub. I was thinking somewhere around 70 Hz with a 18 Db slope. Opinions?Kelly
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Forum: Pi Speakers «»
Posted on: Fri, 26 July 2002 12:52 «»
By: Wayne Parham
Re: altec gear in a pi box??
Hello again Kevin!You wrote:>> The T/S params for the 416b are xmax=.15 Vd=19.20 Fs=25.1 Vas=26.47 Qts=.32 Qms=7.05 Qes=.33 Vid=.2PiAlignments for that motor specify a cabinet of 8.5 cubic feet tuned to 30Hz. It further recommends a rectangular port havin...
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Forum: Pi Speakers «»
Posted on: Fri, 26 July 2002 08:01 «»
By: EZ_Angus
Re: altec gear in a pi box??
Thanks to all for the posts. I don't want a sub, so it seems like the 825 cab will not get the job done for bass down to 40hz or so. does everyone agree about that?The T/S params for the 416b are xmax=.15 Vd=19.20 Fs=25.1 Vas=26.47 Qts=.32 Qms=7.05 Qes=.33...
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Forum: Pi Speakers «»
Posted on: Sun, 21 July 2002 20:36 «»
By: bmar
Re: Thanks! Construction pictures and dimensions
Thanks guys for all the nice compliments. Some how they ended up being more work than I was thinking. The reality did sound better than the dream Till! The reality also looks a lot bigger in the house than in the dream Too. Woa! The wife likes them they so...
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Forum: Pi Speakers «»
Posted on: Fri, 19 July 2002 09:46 «»
By: ToFo
to be fair...
After reading Wayne's Filter Q post I think I should add this. The nearly diagonal rising response caused by the orphaned comp circuit, is seen by the listener as a dip in the mids around the crossover region. Since I ragged on the Rane's midrange, I shou...
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Forum: Pi Speakers «»
Posted on: Fri, 19 July 2002 09:12 «»
By: Sam P.
oops, now I am on "the right page":)
"But the (R1/R2/C1) compensation circuit acts as a damper for the tweeter's Butterworth (L1/C2/C3) crossover filter, and sets filter Q. Without those components - as if the load were purely resistive - the output of the compensation circuit would be a near...
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Forum: Pi Speakers «»
Posted on: Fri, 19 July 2002 08:13 «»
By: Wayne Parham
Filter Q
I think a lot of guys have run active and been pleased with their results. The thing that is most important is using a crossover that has CD compensation. This provides 6dB/octave boost.The passive filter in the π crossover goes one step further. It ...
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Forum: Pi Speakers «»
Posted on: Fri, 19 July 2002 02:51 «»
By: ToFo
Passive Active Midrange Blah Blah ( long)
Stuff I learned, and want to shareI just built a new set of crossovers. after I hooked them up I knew immediately there had been something wrong. My old x-over was perahps poorly built and my active x-over sounded gritty to me. I had enough materials in ol...
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Forum: Pi Speakers «»
Posted on: Thu, 18 July 2002 15:22 «»
By: bmar
Re: 3 and 4 way crossover
Hi Wayne,Thanks for the suggestions! Lots to think about there. I think I can experiement and dial it in with an active setup. Making it easier in the long run. In an effort to conserve an amp and being able to use a 3way crossover. (not having to get anot...
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