rawlins87 Posted September 28, 2009 Report Share Posted September 28, 2009 Here is the parameters of the btl 18 that FI has on their website. Can anyone tell me what the options were on this sub that was tested for parameters (cooling? high xmax coil ect?). Thinking about buying two and doing a T-Line. Whatever options are on this sub is perfect for the application I want to use it in. BTL18 DUAL 1 | DUAL 2 Fs: 31.9 Hz | 31.1 Hz Re: 0.7 Ohms/coil | 1.4 Ohms/coil Qms: 6.26 | 6.42 Qes: .26 | .24 Qts: .24 | .023 Mms: 313g | 329g Sd: 1210cm^2 | 1210cm^2 Vas: 163.1 l | 163.1 l Spl: 94.9dB 1W/1m | 94.9dB 1W/1m Bl: 18.3 N/A | 27.2 N/A Xmax: 28mm * | 28mm * Rms: 2000W * | 2000W * Sealed box: N/A cuft | N/A cuft Ported box: 5-10cuft | 5-10cuft Sub OD: 18.500” | 18.500” Cut ID: 16.750” | 16.750” Mounting depth: 10.250” | 10.250” Displacement: 0.26cuft | 0.26cuft Quote Link to comment Share on other sites More sharing options...
Guest Posted September 28, 2009 Report Share Posted September 28, 2009 2 18's in a t-line? good luck fitting that in a car...unless its for the home. Quote Link to comment Share on other sites More sharing options...
rawlins87 Posted September 28, 2009 Author Report Share Posted September 28, 2009 (edited) its an suv and i have PLENTY of room. i plan on doing 2 off a sundown 4500 (when it comes out) for the time being until i have enough money to buy 2 more subs and another 4500>>>then a wall will be built Edited September 28, 2009 by rawlins87 Quote Link to comment Share on other sites More sharing options...
cnate777 Posted September 30, 2009 Report Share Posted September 30, 2009 Unless you have a box truck I dont think they will fit......what SUV do you have.........1 18 you can do but I am thinking 2 will be a stretch.....might be wrong though Quote Rockford Fosgate Sundown Audio DC Power Inc XS Autometer Pioneer Link to comment Share on other sites More sharing options...
rawlins87 Posted September 30, 2009 Author Report Share Posted September 30, 2009 (edited) I can fit one tuned to 31 hz. or 2 tuned around 40 hz I not here to bicker with people whether it will fit or not, i just need to know sub build specs regarding parameters. Thanks Edited September 30, 2009 by rawlins87 Quote Link to comment Share on other sites More sharing options...
justin smith Posted September 30, 2009 Report Share Posted September 30, 2009 a t-line is not just a big ported box Quote justin smith 1996 mercury grand marquis 20'' bentchi b7 lexani n3000 245/35/20 cactus 5kw at 1ohm dcr(beast) 2 18'' btl's in a 14.15^ft wall tuned to 35hz with 210'' of port kicker zx650.4 componets in still the works 200amp motorcraft alt xs power d3100 (beast) kenwood ddx512 h.u. you mean my EX? the one I dumped? just remember every time you kiss her that i used to cum in her mouth and BTW your girl just called me.... pure pwnage Link to comment Share on other sites More sharing options...
Guest Posted September 30, 2009 Report Share Posted September 30, 2009 you cant tune a t-line to w/e freq you want. it has to be the Fs of the sub. you will NOT fit 2 18's in a t-line in your truck. im 95% sure about it. and you cant really throw that much power to a woofer. 4000rms is alot for a woofer, especially in a t-line Quote Link to comment Share on other sites More sharing options...
AI James Posted September 30, 2009 Report Share Posted September 30, 2009 hes putting the 4500rms on 2 woofers so they would be seeing about 2250 each Quote Link to comment Share on other sites More sharing options...
FiBTLforlife Posted October 1, 2009 Report Share Posted October 1, 2009 hes putting the 4500rms on 2 woofers so they would be seeing about 2250 each im not gone say it cant or it can. i just want to see it done with a video and ill be happy. good luck with your build and keep us posted on the progress. Quote 2 AQ 10'' HDC3 copper subs 1 3500d AQ amp 146.3db on TL with stock electrical in single cab truck at 32hz RESULT: 1st place at comp, 3rd overall out of 20 cars Link to comment Share on other sites More sharing options...
rawlins87 Posted October 1, 2009 Author Report Share Posted October 1, 2009 a t-line is not just a big ported box I understand this (i assumed that you could make the line anything ABOVE Fs. I was wrong) you cant tune a t-line to w/e freq you want. it has to be the Fs of the sub.you will NOT fit 2 18's in a t-line in your truck. im 95% sure about it. and you cant really throw that much power to a woofer. 4000rms is alot for a woofer, especially in a t-line Ok again i was wrong about the Fs. And now remeasuring everything it will have to be 2 15s. I need help know what the parameters will be given certain "options". If you cant help with this your are you cluttering my thread? And it was 1 4500 for 2 subs not 1 Kthxbye im not gone say it cant or it can. i just want to see it done with a video and ill be happy. good luck with your build and keep us posted on the progress. Thanks for the help, and now knowing that I cant tune above Fs I only have room for 2 15s. But again this is temp, just before i build my wall Quote Link to comment Share on other sites More sharing options...
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