bumpinTL364 Posted August 19, 2011 Report Share Posted August 19, 2011 Hey all, I've been thinking about designing a smallish t-line to go into my dorm room for quite some time now. I plan on using a 6.5" Tang Band woofer, the specs of which are: Frequency range: 38-800 Hz • Fs: 38 Hz • SPL: 83 dB 1W/1m • Vas: 0.416 cu. ft. • Qms: 2.65 • Qes: 0.47 Qts: 0.40 • Xmax 13 mm • Dimensions: Overall diameter: 7", Cutout diameter: 5-1/2", Depth: 3-5/8". According to my calculations, I would need about 28 sq. in. of port and a line length of 97.5" for tuning of 36hz. My main questions are; should I bother adjusting the line length to tune the box up by just 2hz, or is 36 going to be close enough? Also, I've seen and read a lot about adding a sort of dampening material throughout half of the line; is this actually necessary/required in order to have proper response, or is it just an extra step that someone more experienced would take in order to get everything they possibly can out of their setup? Lastly, I'm open to any constructive criticism of my box, so what do you guys think? Sorry for the long read, now here's the box: Quote masterbation is free, and even saves you money.sorry but someone had to say itsorry, Jimmy...beat you to it (no pun intended) LOLDON'T get a wife. Best advice I never got, and now it's too late My build: 12" DCON in a dorm room. New/current build: 8" woofer, custom amplifier block, fiberglassed speaker pods Link to comment Share on other sites More sharing options...
Mr.JaunDurfle Posted September 2, 2011 Report Share Posted September 2, 2011 I know this is a couple weeks old, but from what I've read on the subject, in the Tline sticky, your box seems like it would be good. I didn't do any math to see if your figures are right, but it looks good. I've read you can tune your box higher than the Fs of your speaker, but not lower because of unloading. Post some pics up of your progress. I just planned out a TLine for a Kicker Comp VX 10. It's a double bend, sub firing up and ported up also. Don't know if I will build it or not yet. Good luck on yours. Quote 2001 VW Passat Sportwagen Alpine ICS-X7HD DC Audio 5K SSA 15" XCON Tantric Sounds 6.5HD's, Sundound Audio SA-6.5CS Incriminator Audio IA6.4 XS batteries, KnuKonceptz wirez, Second Skin Link to comment Share on other sites More sharing options...
bumpinTL364 Posted September 23, 2011 Author Report Share Posted September 23, 2011 thanks man. i didn't know about the tuning up, but now i do remember hearing that subs in a t-line will hit an octave below the tuning of either the box or the sub, not sure which.... Quote masterbation is free, and even saves you money.sorry but someone had to say itsorry, Jimmy...beat you to it (no pun intended) LOLDON'T get a wife. Best advice I never got, and now it's too late My build: 12" DCON in a dorm room. New/current build: 8" woofer, custom amplifier block, fiberglassed speaker pods Link to comment Share on other sites More sharing options...
94retta(219) Posted September 23, 2011 Report Share Posted September 23, 2011 You want the sub and port as close to eachother as possible. Quote BUILD LOG Link to comment Share on other sites More sharing options...
IH8PunkRok Posted September 23, 2011 Report Share Posted September 23, 2011 You want the sub and port as close to eachother as possible. really? why? Quote -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 Link to comment Share on other sites More sharing options...
94retta(219) Posted September 23, 2011 Report Share Posted September 23, 2011 You want the sub and port as close to eachother as possible. really? why? It has to do with how the waves meet up. Its just like on ported boxes with multiple subs you want to keep them as close to each other as posible. Quote BUILD LOG Link to comment Share on other sites More sharing options...
94retta(219) Posted September 23, 2011 Report Share Posted September 23, 2011 It reduces cancellation Quote BUILD LOG Link to comment Share on other sites More sharing options...
Airborne Posted September 23, 2011 Report Share Posted September 23, 2011 You want the sub and port as close to eachother as possible. I have an E8 in a t-line with the sub and port on opposite sides of the front and it wangs. Are you saying that if the sub were closer to the port it would be louder? Quote Link to comment Share on other sites More sharing options...
94retta(219) Posted September 23, 2011 Report Share Posted September 23, 2011 You want the sub and port as close to eachother as possible. I have an E8 in a t-line with the sub and port on opposite sides of the front and it wangs. Are you saying that if the sub were closer to the port it would be louder? Yep. How much of a difference it makes is all in the room/car you have it in. But from what i have noticed the bigger the area the more it matters. Quote BUILD LOG Link to comment Share on other sites More sharing options...
94retta(219) Posted September 23, 2011 Report Share Posted September 23, 2011 Op do you plan on whatching movies with this? Quote BUILD LOG Link to comment Share on other sites More sharing options...
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