vad333 Posted January 17, 2007 Report Share Posted January 17, 2007 i cant find that thread. subs barelly move at all, thats hard to belive, tlines cant be that good, but i never heard 1 yet so dont listen to me. i only heard a bose t line in best buy, it was 5" woofer 3 qty in a tline. Link to comment Share on other sites More sharing options...
Forevrbumpn Posted January 18, 2007 Author Report Share Posted January 18, 2007 the small bose jewel cubes use 1/4 wave technology, but the bass module I believe is a ABC box. Its basically a ported box, firing in to another ported box I have a ritual called "terminator". I crouch in the shower in the "naked terminator" pose. With eyes closed I crouch for a minute and visualize either Arnie or the guy from the 2nd movie. I then start to hum the T2 theme. Slowly I rise to a standing position and open my eyes. It helps me get through my day. The only problem is if the shower curtain sticks to my terminator leg. It sorta ruins the fantasy. Link to comment Share on other sites More sharing options...
vad333 Posted January 18, 2007 Report Share Posted January 18, 2007 u know ur stuff Link to comment Share on other sites More sharing options...
Forevrbumpn Posted January 18, 2007 Author Report Share Posted January 18, 2007 I was so called, "BOSE" certified back in 98-00' lol... so I know there bo design... there newer bass module, its looks a lil different, maybe a different design I have a ritual called "terminator". I crouch in the shower in the "naked terminator" pose. With eyes closed I crouch for a minute and visualize either Arnie or the guy from the 2nd movie. I then start to hum the T2 theme. Slowly I rise to a standing position and open my eyes. It helps me get through my day. The only problem is if the shower curtain sticks to my terminator leg. It sorta ruins the fantasy. Link to comment Share on other sites More sharing options...
CompressionFed Posted January 19, 2007 Report Share Posted January 19, 2007 I have a question for you...and anyone else for that matter. If anyone here is familiar with "Waveguide" theory, you know that in order to prevent reflections, the radient of the curves (port path) needs to be greater than 2 wavelengths. (the funny symbol represented in the below figures = wavelength) Is this taken into consideration in the automotive environment? It seems that the folded horn, T-Line 1/4 wave approach is very close, but I'm wondering how a perfect "waveguide" would perform (if it's even plausable in a vehicle). Consider this; in theory, you would only want two "vent passes", not three. Here's why...during the first turn the wave reflects causing it to be 180 out, then on the second pass it would flip another 180 degrees and once again be 'in phase". The comment was made above that t-line boxes sound good, but meter bad. Is this because the waves are out of phase? If you follow waveguide theory, and wave propogation it is. Does anybody have any input? Here is an example of an acceptable curve Here is an example of a sharp turn The reflections that occur at the 45-degree bends cancel each other, leaving the fields as though no reflections have occurred. Link to comment Share on other sites More sharing options...
CompressionFed Posted January 19, 2007 Report Share Posted January 19, 2007 Anyone?? Link to comment Share on other sites More sharing options...
CompressionFed Posted January 20, 2007 Report Share Posted January 20, 2007 Well this sucks...did I offend someone??? Link to comment Share on other sites More sharing options...
vad333 Posted January 21, 2007 Report Share Posted January 21, 2007 is this tappered, it doesnt look the same. Link to comment Share on other sites More sharing options...
vad333 Posted January 21, 2007 Report Share Posted January 21, 2007 simple U- turn box that your friens built Link to comment Share on other sites More sharing options...
Forevrbumpn Posted January 21, 2007 Author Report Share Posted January 21, 2007 offend? if tlines meter bad, why are there lots of people getting above 150 out of them? I honestly dont see the question... The cone and port are in perfect alignment/phase, that is why the line is as long as it is, because its perfectly in phase with the port. But if you feel that is not true, try building a bandpass tline. They get crazy loud, and its just the line, no woofer, yes louder than a conventional tline. But the bend your talking about, I dont see how that effects anything?? I have a ritual called "terminator". I crouch in the shower in the "naked terminator" pose. With eyes closed I crouch for a minute and visualize either Arnie or the guy from the 2nd movie. I then start to hum the T2 theme. Slowly I rise to a standing position and open my eyes. It helps me get through my day. The only problem is if the shower curtain sticks to my terminator leg. It sorta ruins the fantasy. Link to comment Share on other sites More sharing options...
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