mrd6 Posted September 23, 2014 Report Share Posted September 23, 2014 ^Very efficient enclosure style. Ive only built them for smaller drivers but they always impressed me. Had a pair of t-line towers I built for my girlfriends apartment a few years back with a single $25, 6.5" dayton mid in each tuned @ 35. Those things would fill and shake the entire apartment all the way down to 25hz on ~35 watts each. It was nutty for what it was. My Build Log: http://www.stevemead...-sundown-power/ Team NorthWestSPL Link to comment Share on other sites More sharing options...
Subwoofer Stokes Posted September 23, 2014 Author Report Share Posted September 23, 2014 Thats all ive been seeing. People putting small speakers and cheaper sub in them and make them slam. So Im like, lets build a tline for the 18 lol <p>Black 1997 Chevy C1500 Ext. Cab5.7L 350 VortecDual 22" Glasspack ExhaustRacing Chip/Programmer.373 Gears W/ Shift KitCold Air IntakePioneer Deh80-PrsSubwoofers-Fi Q motor, 18 6 spoke basket, SPL Audio recone Link to comment Share on other sites More sharing options...
Mr Bigolsworth Posted September 23, 2014 Report Share Posted September 23, 2014 should be interesting. I'm tuned in for sure 2002 chevy avalanche Currently have: 2 dc xl 18 set of T2652-s scv-6k Ct sounds 75.4 270a mechman xp3000 d3400 Wanted: saz 200.4 Second set of T2652-s D3100's deadner Link to comment Share on other sites More sharing options...
CleanSierra Posted September 23, 2014 Report Share Posted September 23, 2014 Well the Fs is 32 Hz so if you tune to resonant frequency you get an 8.5 ft line. Here's the trick, it's not just the fact that it's a line that is 8.5ft long, but the port width that will get you. To give the vent opening your cone area(which I believe is recommended for design style), you'd need a port that is a constant 17X15" the entire length of that 8.5 ft. That's a monster box man. Im not the one you want to try to troll. Just a fyi for you. Link to comment Share on other sites More sharing options...
csermonet47 Posted September 23, 2014 Report Share Posted September 23, 2014 What is the benefit of a T-Line over other box designs? More output with less power? Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted September 23, 2014 Report Share Posted September 23, 2014 What is the benefit of a T-Line over other box designs? More output with less power? The function of both a T-Line and a ported box is to delay the sound wave coming off the back of the cone so that it will work in tandem with whats coming off the front. How they do this is completely different, but the result is similar. When comparing a T-Line to a ported box of similar volume the efficiency is about the same, but since T-lines usually end up being much larger boxes that's where their perceived extra efficiency comes from. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
Subwoofer Stokes Posted September 23, 2014 Author Report Share Posted September 23, 2014 So i should make my line 17"x15"? <p>Black 1997 Chevy C1500 Ext. Cab5.7L 350 VortecDual 22" Glasspack ExhaustRacing Chip/Programmer.373 Gears W/ Shift KitCold Air IntakePioneer Deh80-PrsSubwoofers-Fi Q motor, 18 6 spoke basket, SPL Audio recone Link to comment Share on other sites More sharing options...
Subwoofer Stokes Posted September 23, 2014 Author Report Share Posted September 23, 2014 The diameter of the cone inside the surround is 13.5 and the outside is 17 <p>Black 1997 Chevy C1500 Ext. Cab5.7L 350 VortecDual 22" Glasspack ExhaustRacing Chip/Programmer.373 Gears W/ Shift KitCold Air IntakePioneer Deh80-PrsSubwoofers-Fi Q motor, 18 6 spoke basket, SPL Audio recone Link to comment Share on other sites More sharing options...
Subwoofer Stokes Posted September 23, 2014 Author Report Share Posted September 23, 2014 I already have a "blueprint" of how i want to build it. I just dont know what size to make the line. Is there a way i can post a pic of the drawing i made? <p>Black 1997 Chevy C1500 Ext. Cab5.7L 350 VortecDual 22" Glasspack ExhaustRacing Chip/Programmer.373 Gears W/ Shift KitCold Air IntakePioneer Deh80-PrsSubwoofers-Fi Q motor, 18 6 spoke basket, SPL Audio recone Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted September 23, 2014 Report Share Posted September 23, 2014 So i should make my line 17"x15"? Not sure where those dimensions came from. Typically you make the line so it has the same amount of area as your cone, so in this case about 187.5 sq in. If you make it 17" wide it will need to be about 11" deep. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
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