bass-aholic 10+ year member
CarAudio.com Veteran
Has anyone had any experience using BTL's in a T-line or folded horn? Any reason this would or would not be a good idea?
Folded horn wall mehbeh? Doesn't Pete K have a one of these for 2 15"s?
Pete's horns are really just expanding transmission lines but you could easily argue that they display properties of each, even if neither are "classical" models.No, and for the last god **** time that box was NOT a "folded horn". A real folded horn would perform horribly in a B-pillar wall.
The expansion is so small though, you can't really call them any kind of horn.Pete's horns are really just expanding transmission lines but you could easily argue that they display properties of each, even if neither are "classical" models.
A BTL should work out very well in either a horn or transmission line.
Those enclosures offer more 1/4 wave properties than helmholtz properties; they're much less like bass reflex than they are 1/4 wave resonators.The expansion is so small though, you can't really call them any kind of horn.
Those boxes use design theories and properties from a couple different types of boxes, but truthfully aren't much more than a ported box //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
You took what I said about the expansion rate and twisted it some. I didn't say it doesn't have horn properties I said you can not call them a horn just because there is some properties aka an expansion rate. Even then, an expansion of 2-3" still isn't that much. Please do not insult my intelligence and try to tell me what I'm thinking of. The only reference I made to a exponential horn was post #7 in saying it wouldn't do all that great in a walled vehicle.Those enclosures offer more 1/4 wave properties than helmholtz properties; they're much less like bass reflex than they are 1/4 wave resonators.
You're also wrong about the expansion rate. Just because the expansion is small does not mean it will not have horn properties. What you're probably thinking about is an exponential horn that has a mouth cross sectional area large enough to support the full wave length of the low frequency cutoff. While exponential horns are the archetype of horns, that doesn't mean that anything not exactly like it will not have similar properties. Hyperbolic flares, linear flares, and conical flares are all methods of approach for getting horn properties and there is nothing wrong with them. They all have drawbacks to their design but they're still representations of horn designs.