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1 Forum: Pi Speakers «» Posted on: Fri, 02 February 2018 10:40 «» By: Wayne Parham
Re: 7pi plan and guidance request
That room will work very well with constant directivity cornerhorns. The seven π constant directivity cornerhorn generates 101dB/W/M and is capable of over 120dB/M at full output. I would put the seven π cornerhorns along the 15-foot wall, just as ...
2 Forum: Pi Speakers «» Posted on: Thu, 01 February 2018 09:44 «» By: Wayne Parham
Re: 7pi plan and guidance request
If you have the right corners, I would suggest using the 2226 drivers in seven π constant directivity cornerhorns and make subwoofers from the 2242 drivers. Put the subs in opposite corners or somewhere distant from the cornerhorns, in a multisub config...
3 Forum: Home Theater «» Posted on: Mon, 22 January 2018 09:13 «» By: Wayne Parham
Re: Custom home theater room
Most times, you can work with what you've got and expect at least reasonably good performance. There are some very difficult rooms though. Examples are basements (or any room with hard walls), very long narrow rooms, very small rooms and rooms with hig...
4 Forum: General «» Posted on: Thu, 09 November 2017 10:12 «» By: Wayne Parham
Re: Small rooms are harder to get good sound?
Yes, small rooms have more problematic room modes than large rooms. The larger the room, the further away the reflections are. This is good both for delay and intensity. Rooms that are very large act more like an anechoic (reflection free) environ...
5 Forum: Room Acoustics «» Posted on: Thu, 02 November 2017 10:13 «» By: Wayne Parham
Re: Why is drywall bad?
That's true. Rooms with framed drywall construction are much better than rooms with brick, stucco, concrete or rock walls. The drywall panels vibrate enough that they absorb some of the bass frequencies, and so act a little bit like panel absorbers. ...
6 Forum: Room Acoustics «» Posted on: Wed, 04 October 2017 15:59 «» By: Wayne Parham
Re: Small-room acoustics
Actually, small rooms are harder to work with than larger rooms. The reflections and room modes are more intense in a small room. Speakers that can provide uniform directivity help reduce problems in the reverberent field, above around 200Hz, and as yo...
7 Forum: Pi Speakers «» Posted on: Wed, 20 September 2017 10:48 «» By: Wayne Parham
Re: Various questions regarding 7Pi
The walls don't need to be rigid; In fact, a lossy wall is best. Just not one that buzzes as it vibrates. The reason we like a lossy wall is it damps room modes. Ideally, we'd like a wall that became increasingly rigid above the Schroeder frequency...
8 Forum: Pi Speakers «» Posted on: Mon, 18 September 2017 18:33 «» By: Wayne Parham
Re: Various questions regarding 7Pi
Answers by numbers: Midhorn questions: 1. In the π constant directivity cornerhorn designs, the midhorn blends with the bass bin in the 100Hz to 200Hz region. There is enough output from both sound sources to mitigate vertical room modes and floor ...
9 Forum: Room Acoustics «» Posted on: Fri, 25 August 2017 02:42 «» By: drake
Re: Foam versus fiberglass
I agree that there are speakers that sound much better than others in the same room. It is interesting to read all aspects regarding insulation and I think it is one of those topics that's non-exhaustive.
10 Forum: Room Acoustics «» Posted on: Mon, 21 August 2017 20:24 «» By: Wayne Parham
Re: Foam versus fiberglass
There are a lot of things that go into making a great sounding room. Some are more important than others. Some are huge, other smaller "Nth degree" things. And sometimes, two different approaches solve similar acoustic problems to varying de...
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