Standard Box or not box?
If I want the driver to move easily, which box should I use then? Or maybe no box at all?
If I want the driver to move easily, which box should I use then? Or maybe no box at all?
Last edited:
Translation:
If I want the driver to move easily, which box should I use then? Or maybe no
box at all?
English please, per forum rule 6. 😉
No box = driver unbaffled below the frequency defined by its own basket width, so is inherently the lowest efficiency load possible that will cause the highest excursions for a given signal input.
If I want the driver to move easily, which box should I use then? Or maybe no
box at all?
English please, per forum rule 6. 😉
No box = driver unbaffled below the frequency defined by its own basket width, so is inherently the lowest efficiency load possible that will cause the highest excursions for a given signal input.
Never heard horns but I think open baffle does sound pretty effortless compared to simple sealed or bass reflex box, among other things.
Goodevening sirs!
English, yes!
The contest is FR but May be applied ( better, for various reasons) to specialized speakers, i.e.multi-way systems.
Freely=no damping, or, as written above by respectable member S...
First 'make It multi-way' warning
Ok, suppose that you have the perfect speaker flat 20-20000, you'd still want to isolate front emission from back emission.
This Is first general rule.
How do you make It?
Material? Shape?
How do I position the thinghy, that are two, in space?
English, yes!
The contest is FR but May be applied ( better, for various reasons) to specialized speakers, i.e.multi-way systems.
Freely=no damping, or, as written above by respectable member S...
First 'make It multi-way' warning
Ok, suppose that you have the perfect speaker flat 20-20000, you'd still want to isolate front emission from back emission.
This Is first general rule.
How do you make It?
Material? Shape?
How do I position the thinghy, that are two, in space?
Compared to sealed and BR, I think so.
Other guys with lot more experience with all different box types are often fond of horn enclosures, horn will mean lower driver distortion.
For a fullrange, OB means WAW for most people.
I have gotten acceptable bass from just a Alpair 11ms without any EQ on an OB
Other guys with lot more experience with all different box types are often fond of horn enclosures, horn will mean lower driver distortion.
For a fullrange, OB means WAW for most people.
I have gotten acceptable bass from just a Alpair 11ms without any EQ on an OB
Ok, first technical definition: Infinite Baffle
...sort of 'wrap around surface' that satisfies the First general rule
...sort of 'wrap around surface' that satisfies the First general rule
It can be seen all as a horn
The' wrap around surface' can be concave, planar to the speaker, convex, with various grades and shape.
😕 All this surface-area produces some issues that are well known, so sticking with the 'no-baffle' Path might seem doable
🙄
🙄
On the other hand, following the 'basket size' physics and the extension of radiation from the nearby area, you gain something that It would be lost without the baffle..sounds like a paradox
Hey,. you guys are joking...😛
I know what point source Is, and the doubling of emission at each folding of the half sphere ..I..I know the magic Word : stheradian
😎
OK, you'll get a lot of different opinions on this, since there isn't a fixed definition for 'detail'. However, FWIW:
'Detail', assuming it's 'real' rather than an artificial contrivance through, say, excess HD3 or > depends on frequency response over the desired bandwidth, and how low the distortion is. So the ultimate limit in resolution is set by the source, the amplifier, and the basic performance of the driver. In outright terms, a horn can (can) provide the most efficient possible load for a driver over a given bandwidth, reducing the amount of travel it has to make for a given output, and thereby lowering distortion. Assuming you design to achieve a target response, low distortion = greater accuracy / 'detail'.
Yep. 😉 Albeit Allen makes a good literal point -an infinite baffle technically means a baffle infinitely large, and when you get to very extreme sizes that completely swamp Vas, the driver has so little acoustic loading it will reach excursions to all practical intent as high for a given signal input as though no baffle was there.
If there were no baffle then there would also be losses. Excursion would have to increase again to maintain a fixed axial pressure.
You must define 'move easily' and 'more details' for most accurate answer since the driver's compliance [Vas], inductance [Le] specs, frequency response defines how well it performs over 'x' bandwidth [BW].
Do you have a specific driver in mind and/or a maximum box size [height x width x depth]?
Is this a single driver speaker or one as part of a multi-way system?
Otherwise I can only suggest OB using a driver with an Fs = to lowest you want it to play and the highest Vas, ~0.707 - 1.0 Qts, lowest inductance < 0.25 mH or use a Zobel filter.