| |
211 Search Results Found |
| 1 |
Forum: Pi Speakers «»
Posted on: Mon, 20 May 2013 13:13 «»
By: Wayne Parham
Uniform Directivity - How important is it?
…
That's why I often refer to speakers with uniform directivity rather than constant directivity. It is more important to me that the power response be uniform than it is for directivity to be constant. They are similar, but not exactly the same.
To…
|
| 2 |
Forum: Pi Speakers «»
Posted on: Thu, 26 June 2008 13:50 «»
By: Wayne Parham
Uniform directivity
… net effect is that the reverberent field is uniform.But if you're used to the sound of a typical direct radiator that falls off off-axis, then having a uniform reverberent field can sound fuller. There is definitely a difference. It's unnatural to me …
|
| 3 |
Forum: Pi Speakers «»
Posted on: Tue, 16 March 2010 11:31 «»
By: Wayne Parham
Baffle Step
…than acoustic power.
When designing uniform-directivity loudspeakers, one should avoid the temptation to optimize on-axis response using electrical filters to modify what is entirely an acoustic matter, because this tends to only improve the amplitude…
|
| 4 |
Forum: Pi Speakers «»
Posted on: Thu, 10 June 2010 13:07 «»
By: Wayne Parham
Woofer size for uniform directivity loudspeakers
…in. The main objective is to provide a uniform reverberent field, one with good spectral balance. Probably the most annoying abberation is the one that's most common, where there's too much midrange energy in the room. This is caused by having too wide…
|
| 5 |
Forum: Speaker «»
Posted on: Sun, 13 July 2008 18:58 «»
By: Wayne Parham
Re: Woofer directivity
…where they'll be close enough to give very uniform polar response.It is also important when selecting the crossover point to consider the null angle in the vertical plane. I like to set it just outside the vertical angle of the HF horn at high …
|
| 6 |
Forum: Pi Speakers «»
Posted on: Thu, 08 November 2012 15:45 «»
By: Wayne Parham
π Constant Directivity Cornerhorn: Bass Bin Design Details
…to its midhorn, actually, both providing uniform 90° horizontal beamwidth. It would remain constant down to very low frequency if it weren't for room modes. But in large enough rooms, modes don't come into play until the lowest frequencies. It's a …
|
| 7 |
Forum: Pi Speakers «»
Posted on: Tue, 05 September 2006 15:04 «»
By: Wayne Parham
Re: Learned some more audio truth outdoors
…determines the reverberent field. Uniform directivity along with uniform response makes a uniformly charged reverberent field. If directivity fluxuates up and down, then the reverberent field won't be uniform even if on-axis response is good.Uniform …
|
| 8 |
Forum: Pi Speakers «»
Posted on: Mon, 30 April 2001 22:46 «»
By: Wayne Parham
Pi horn design philosophies
…design.The cornerhorn quickly evolved into a uniform directivity experiment. I noticed right away that the Pi cornerhorn did something special, even when loaded with only direct radiators. I built them in several varieties, always with a rear-facing …
|
| 9 |
Forum: Speaker «»
Posted on: Mon, 22 February 2010 19:48 «»
By: Wayne Parham
Re: Help me make the leap
…- it will sound nice and give a good, uniform pattern.
The thing is, getting back to the point source, the use of a controlled directivity tweeter, and matching to the midwoofer or midwoofers, I think the whole point of using a CD horn / waveguide is …
|
| 10 |
Forum: Pi Speakers «»
Posted on: Mon, 02 February 2009 13:02 «»
By: Wayne Parham
Re: What's your favorite horn and crossover for the DE250?
…directivity in the horizontal plane and uniformly collapsing directivity in the vertical. The vertical beamwidth is approximately 50° from the crossover point up to about 5kHz, and above that it drops to about 40°. The collapse of vertical directivity …
|
Posting Rules
Members
Search
Help
Register
Login
Get a T-Shirt!
