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1 Forum: Room Acoustics «» Posted on: Tue, 24 November 2020 19:09 «» By: Wayne Parham
Re: Same stereo/speakers different sound
Rooms definitely have a big influence on the sound. Think about how things sound in a small room (like a bathroom) compared to a large room (like an auditorium). The most significant influence is from room modes and self-interference from boundaries....
2 Forum: Speaker «» Posted on: Tue, 08 September 2020 13:02 «» By: Wayne Parham
Re: Radian 475PB
That's awesome, Bruce! The forward lobe is right where you want it to be! Nulls roughly equally spaced and far apart, outside the vertical beam. As for the nearby boundaries - side and rear wall - give a helper woofer setup a try. It will provide t...
3 Forum: Pi Speakers «» Posted on: Tue, 02 June 2020 17:43 «» By: Wayne Parham
Re: Corner horn listening distance
Since your room has a front wall span of just under twelve feet across, the best area to listen to the cornerhorns in your room is in the area between about six feet back and twelve feet back from the front wall. You can sit more distant than that and i...
4 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...
5 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...
6 Forum: Pi Speakers «» Posted on: Mon, 14 October 2019 17:13 «» By: Wayne Parham
Re: Three Pi and Three Pi Sub Plans
If you can mount the speakers in the wall, that's perfect because it removes self-interference from the wall as well as removing any baffle step. It really is the best option. You can setup the subs as distributed multisubs rather than flanking subs. ...
7 Forum: Pi Speakers «» Posted on: Mon, 14 October 2019 10:37 «» By: Wayne Parham
Re: Three Pi and Three Pi Sub Plans
What you propose sounds like it would work pretty well. You would lose a couple synergies that are designed into the three π and four π models though. And you would need to test your design with acoustic measurements, paying special attention to the lo...
8 Forum: Pi Speakers «» Posted on: Tue, 03 September 2019 16:02 «» By: Wayne Parham
Re: Definimax 4012HO - End of Life
I'm not ready to make an announcement, but I can give a status update. I have a pair of Eminence Delta Pro 12A woofers and a pair of B&C 12PLB100 woofers here to test with. Both look like they will work very well from modeling and from free-air...
9 Forum: Pi Speakers «» Posted on: Fri, 17 May 2019 09:33 «» By: Wayne Parham
Re: Three Pi performance at low volumes
It's not an issue if you incorporate flanking subs, which also solve the problem of self-interference from nearest boundaries and room modes at the higher end of the modal region.
10 Forum: Pi Speakers «» Posted on: Fri, 01 March 2019 10:11 «» By: Wayne Parham
Re: 3 Pi plans
Flanking subs are really just "helper woofers" except that they are generally tuned to provide deep extension. That way you get both benefits - Blending in the 75Hz to 150Hz range gives SBIR smoothing and extension below that gives more deep b...
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