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1 Forum: Pi Speakers «» Posted on: Sun, 16 May 2021 09:16 «» By: Wayne Parham
Re: four Pi and subs
Compression driver changes sometimes need different R1/R2 values to match voltage sensitivity. The amplitude and polar response is set by the waveguide, which is has much more influence than the driver. The only things set by the driver are mass-roll...
2 Forum: Room Acoustics «» Posted on: Tue, 11 May 2021 12:55 «» By: mikehende
Re: Is it safe to position a Sub facing a room's side walls?
Thanks. I looked at this thread here: https://audioroundtable.com/forum/index.php?t=msg&goto=92847&&srch=multisubs+flanking+subs#msg_92847 and another on Flanking subs. There some terminologies there which is confusing to me tbh but if I ...
3 Forum: Room Acoustics «» Posted on: Tue, 11 May 2021 12:23 «» By: Wayne Parham
Re: Is it safe to position a Sub facing a room's side walls?
It doesn't matter what direction you face subs if they are crossed over below 80Hz or so. But if they are run higher than that - and you need the upper-end response - then orientation can matter. The only times I would want subs run high are when they ...
4 Forum: Pi Speakers «» Posted on: Wed, 21 April 2021 17:55 «» By: Wayne Parham
Re: PI 4 Upgrades
If you have the H290C waveguide, it sounds like you're upgraded as far as you can go, at least as far as "factory upgrades" are concerned. You could replace the B&C driver with a TAD TD-2002, but I've never offered it because of the price....
5 Forum: Pi Speakers «» Posted on: Thu, 24 December 2020 09:38 «» By: Wayne Parham
Re: Flanking subs with multi-sub optimizer, and other questions
Sounds good. I've always used monopole direct-radiating subs for flanking subs and multisubs. Hornsubs are just too large and dipoles aren't in my wheelhouse. But I would think dipoles might just work very well for various flavors of multisub setups, ...
6 Forum: Pi Speakers «» Posted on: Sat, 16 May 2020 14:36 «» By: Wayne Parham
Re: Horn loaded Corona Build
There are lots of other great build threads too. Some people have built some really great looking home theaters. Some have made super nice dinner theater installations. And there are plenty of great finishes from various builders too. Almost too many...
7 Forum: Pi Speakers «» Posted on: Thu, 30 April 2020 09:32 «» By: Wayne Parham
Re: 4Pi plan request and question.
You've got mail! I recommend you use flanking subs with these speakers. This isn't done just to add extension, but also to provide modal smoothing and reduce self-interference anomalies from nearest boundaries. Some people also like to run one or tw...
8 Forum: Pi Speakers «» Posted on: Sat, 28 March 2020 10:38 «» By: Wayne Parham
Re: Corner horns & flanking subs?
Constant directivity cornerhorns don't benefit from flanking subs. The anomalies created by reflections from nearest boundaries when using traditional loudspeakers don't occur in cornerhorn installations. The sound source is acoustically close to the n...
9 Forum: Pi Speakers «» Posted on: Mon, 17 February 2020 15:13 «» By: Wayne Parham
Re: Three Pi and Three Pi Sub Plans
That's right, exactly. Set the SPL so that 100Hz is the same level as 200Hz and 300Hz. What you'll also get is a reduction in the amplitude of the dip that results from self-interference from the wall behind the speakers and also reduction o...
10 Forum: Pi Speakers «» Posted on: Mon, 17 February 2020 14:25 «» By: OutOfSpace
Re: Three Pi and Three Pi Sub Plans
"If you can hear noticeably louder bass or midbass with the subs on, then they're set too loud. Thus is true no matter if they're set as multisubs, flanking subs or traditional subs" I guess most car 'audio' guys that didn't get the memo. Som...
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