CheezyMane13 Posted May 17, 2010 Report Posted May 17, 2010 Damn so the 10s are going to be like 5 cubes each huh Y probably about 5 cubes. I mean it could be like 8 feet long for your line but since its a ten Im not sure I have never ran numbers for a 10" take baby steps, u cant do it all at once unless u have a roll of 100's big enough to choke a donkey 1998 Chevy Venture "Swagger Wagon" Kenwood Excelon KDC-X994 Headunit 3 15" Alpine Type R's in seperate T-Lines 1 RF T1500-1bd for 2 of the 15s 1 RF P1000-1bd for the single 15 3 sets of Hifonics Zeus ZXi6.5C Components( 1 more set to come for Front stage) 1 Hifonics HFi100.4 4-channel amp Stock alt for now (DC HO SPL 400A when funds come in,currently working on buying this) Stock battery and one Optima Redtop for now (looking at XS batteries) 3 15" Alpine Type R's (aka Swagger Wagon Build 1.0) Swagger Wagon Build 2.0 Youtube Videos
rizzy71 Posted May 17, 2010 Report Posted May 17, 2010 Exactly, just make sure when you do the math, you redo it a few times, to make sure everything is right, cause one bad measurement will equal a bad t-line, even a measurement off as much of a 1/4" will be bad. That's not right, a t-line designed for an E8 should have around 30^2" of port area, I did mine with 40^2" and it's a lot better than the one I made with only 30^2". I have made t-lines for one of my 12"s with different port lengths and there wasn't really a difference. As long as the port area stays the same all the way through it will be just fine, but a 1/4" is not going to make a noticeable difference at all. T-lines are hard to fuck up, or make sound bad. BRENT1997 GMC Yukon1-DC xl18"Stetsom 2K5E3-Kinetik HC1800's 1967 Pontiac GTO
STEvil Posted May 17, 2010 Report Posted May 17, 2010 you dont even have to know the Fs of your sub, just pick the frequency you want, but remember that under that frequency you really are literally "free-airing" the driver, much more so than the average ported enclosure. The lower the Fs the longer the T-line. More diaphram area means you make it slightly larger internally. You can make it smaller as well for better power handling but then you're going back towards ported enclosures if you make it too small. MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed.
rizzy71 Posted May 17, 2010 Report Posted May 17, 2010 damn this sounds kinda complicated. It really is quite simple actually, the only hard part is figuring out the turns in it. It might be hard to do if going in a trunk though, with them having to be bigger and trying to fit in through the trunk opening. Mine fits with about an inch of clearance on each side, and my trunk opening is pretty good sized. read through forevrbumpn's tutorial, it explains a lot. If you need some help PM me and I'll help as much as I can. Read through my build log too, it might help a little. http://www.stevemeadedesigns.com/board/topic/55270-sundown-e8-t-line/page__p__766488__fromsearch__1entry766488 BRENT1997 GMC Yukon1-DC xl18"Stetsom 2K5E3-Kinetik HC1800's 1967 Pontiac GTO
thehoe92 Posted May 17, 2010 Report Posted May 17, 2010 this was claimed to be a t-line zfrerichs can jump in and say whether thats true or not Fi BL 18 on a t1k pushing over 1500 watts Wouldnt be thehoe92 without teh purple
rckstar Posted May 17, 2010 Report Posted May 17, 2010 I ve been planning to do a T line for a while now, I just haven't found the right sub. I've got 1000w rms to play with, with that in mind , do you guys think it would be safe to use a 1500rms rated sub or 2000w rms as I believe the lack of back pressure would reduce the power handling. my motto: hit it, quit it, never admit it
IH8PunkRok Posted May 17, 2010 Report Posted May 17, 2010 beyond just the enclosure the woofer plays a big role too in foreverbumpn's tutorial (stickied at the top of this section) he list criteria that a sub should fit in. i suggest you look at those as well. if the specs arent in the right area then it wont sound or perform as good as others may. and there are also many sizes of t-lines whole wave - largest and lowest playing. to find length: 1130/fs of sub half wave - still quite large and is based off of the first octave of the desired frequency. for example say you want a frequency tuning of 35. a 1/2 wave will actually be tuned to 70 hz (ie have a larger peak at 70 than 35) but it will still play the lower frequency, just not as loud as the full wave. to find length: (1130/fs)/4 quarter wave - easier to use in car audio but still very large for any large woofer. once again it works on the octave theory. to find length: (1130/fs)/4 eight wave - can often be the same as a standard ported box. however this box will have 3 peaks louder and higher than your desired tuning frequency. some have had great luck with these boxes in car audio applications. you can continue to divide by two off into infinity but with each division your actual tuned frequency will be one octave higher than the last. -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build
CheezyMane13 Posted May 18, 2010 Report Posted May 18, 2010 Nevermind found the sticky What sticky I cant find it take baby steps, u cant do it all at once unless u have a roll of 100's big enough to choke a donkey 1998 Chevy Venture "Swagger Wagon" Kenwood Excelon KDC-X994 Headunit 3 15" Alpine Type R's in seperate T-Lines 1 RF T1500-1bd for 2 of the 15s 1 RF P1000-1bd for the single 15 3 sets of Hifonics Zeus ZXi6.5C Components( 1 more set to come for Front stage) 1 Hifonics HFi100.4 4-channel amp Stock alt for now (DC HO SPL 400A when funds come in,currently working on buying this) Stock battery and one Optima Redtop for now (looking at XS batteries) 3 15" Alpine Type R's (aka Swagger Wagon Build 1.0) Swagger Wagon Build 2.0 Youtube Videos
toylocost Posted May 18, 2010 Report Posted May 18, 2010 half wave - still quite large and is based off of the first octave of the desired frequency. for example say you want a frequency tuning of 35. a 1/2 wave will actually be tuned to 70 hz (ie have a larger peak at 70 than 35) but it will still play the lower frequency, just not as loud as the full wave. to find length: (1130/fs)/4 quarter wave - easier to use in car audio but still very large for any large woofer. once again it works on the octave theory. to find length: (1130/fs)/4 Did you mean for half wave to be (1130/fs)/2? 99 4runner - So far: Alpine PDX4.100 & AQ1200D. Needz speekrz yo.
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