| |
392 Search Results Found |
| 1 |
Forum: Pi Speakers «»
Posted on: Wed, 07 September 2022 06:36 «»
By: suddenko
4Pi Plans & a question
Hi Wayne, huge fan of your work. I would love a set of 4pi plans.
Also a question. Have you explored the option of lining the enclosure with sheet lead to absorb standing waves? Seems a couple of guys do this to their high end models.
Thanks...
|
| 2 |
Forum: Pi Speakers «»
Posted on: Tue, 23 August 2022 09:09 «»
By: Wayne Parham
Re: My 3π adventure
I meant to add some comments about the Helmholtz frequency in each of my responses above, but forgot. It was more important to me to discuss the use of flanking subs and multisubs, and the reasons for needing them. So I became involved in those respons...
|
| 3 |
Forum: Pi Speakers «»
Posted on: Mon, 22 August 2022 17:01 «»
By: Wayne Parham
Re: My 3π adventure
Measured in-room, I think your response curves are pretty good. This is typical in-room response. Looks to me like all is working as designed.
In-room measurements show the room more than they do the speakers. But having a waveguide speaker really ...
|
| 4 |
Forum: Pi Speakers «»
Posted on: Fri, 01 July 2022 14:38 «»
By: tomlang
8 pi speakers install tweeter waveguide inside cabinet?
Attached is a picture showing the recommended enclosure with the tweeter waveguide on top of the bass bin.
Also shown is installing it inside the bass bin. Installing it inside reduces the bass bin volume negligibly, however, will doing this possibly...
|
| 5 |
Forum: Pi Speakers «»
Posted on: Mon, 31 January 2022 14:48 «»
By: Wayne Parham
Re: Three Pi Sub Plans
You've got mail!
And - yes - you can modify the dimensions as long as you maintain the internal volume. You can't usually do that with mains - internal standing waves change if dimensions change - but in subs, the wavelengths are much larger than the...
|
| 6 |
Forum: Pi Speakers «»
Posted on: Fri, 28 January 2022 12:13 «»
By: Wayne Parham
Re: 4Pi - alternate compression driver mounting?
The quality of your environment will be reflected in the quality of your measurements. Oh, such a pun in that sentence.
For measurement charts that will be published, I would recommend no less than 30 feet of unobstructed reflection-free area. O...
|
| 7 |
Forum: Pi Speakers «»
Posted on: Thu, 18 November 2021 09:07 «»
By: Wayne Parham
Re: Aztec Monet Cabinets
That sounds reasonable. Be sure to measure and pay close attention to the response between 200Hz and 400Hz. The standing wave nodes above that are damped very effectively by the fiberglass insulation. It's the lower frequency nodes - the ones in the m...
|
| 8 |
Forum: Pi Speakers «»
Posted on: Thu, 18 November 2021 07:45 «»
By: two.dogs
Re: Aztec Monet Cabinets
I found free online software called Boxnotes that calculates internal sound reflections to minimize standing waves. The Monets should be about an inch less tall, and a few inches narrower with the woofer offset just slightly. That ensures none of the inter...
|
| 9 |
Forum: Pi Speakers «»
Posted on: Wed, 17 November 2021 09:38 «»
By: Wayne Parham
Re: Aztec Monet Cabinets
The midwoofers used in the four Pi models work well in 2ft3 to 5ft3 cabinets with Helmholtz frequency between 35Hz and 40Hz. So that part is pretty easy.
It's dealing with the internal standing waves that's tricky.
|
| 10 |
Forum: Pi Speakers «»
Posted on: Wed, 17 November 2021 08:51 «»
By: two.dogs
Re: Aztec Monet Cabinets
The Omega driver's recommended vented enclosure is 3.28 ft3 with an Fb of 48hz. I think the 4pi is 3.14 ft3 tuned to 42hz. I could keep the woofer centered in its enclosure or move it up closer to the horn. Perhaps I should make the woofer enclosure sligh...
|
Posting Rules
Members
Search
Help
Register
Login
Get a T-Shirt!
