Triticum Agricolam Posted May 9, 2017 Report Share Posted May 9, 2017 Other subs I would consider are the FI Alpha 12, FI X-12 (when they become available again), or the FU 750-12. They would all work well. While it is best to position the subs side-by-side in the line, you can position them so one follows the other. If you have the space, you might consider inverting one of the subs (and reverse the wiring so its in phase). When you have a pair of subs in close proximity with one inverted it can help cancel out some excursion asymmetries and reduce certain types of distortion. "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...
fishchris1 Posted May 9, 2017 Report Share Posted May 9, 2017 Of course I've looked at Fi's... and I know they are great subs, but expensive, and who knows how long until their X is available again. But about those FU's, wow ! Those look great ! Nice price too. I couldn't find some of the parameters though... most importantly, the Fs and Qts ? I sent a letter to there support.... Anyway, those are going to be a strong consideration now. Thank you Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted May 9, 2017 Report Share Posted May 9, 2017 Here is what I have for the T/S specs: FU750-12" Re: 4.0 Ohm Fs: 33 Hz Qms: 5.21 Qes: 0.56 Qts: 0.51 Vas: 34.4 Le: 4.36 mH BL: 21.3 SPL: 88.2dB Sd: 490 cm^2 Mms: 243.1 g Xmax: 20mm Power Handling: 750 watts RMS "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...
DLHgn Posted May 10, 2017 Report Share Posted May 10, 2017 You could always check out the B2 IS12v3's. That's what i'm currently running in my room and it's amazing. Very sturdy subs that do what I ask it to do. 1 12" in a 2.5 ft^3 ported box tuned to 26Hz. Link to product: http://www.b2audio.com/is I believe they're still at $150 a piece. That's what I bought mine for. Link to comment Share on other sites More sharing options...
fishchris1 Posted May 11, 2017 Report Share Posted May 11, 2017 Thanks again Trit. DLH, those look pretty nice too. Fat X max ! Interesting that the FS on those is only 33Hz, but your tuning it down to 26Hz ! Hmmm. No problem with that, huh ? Will consider these too though... Thank you. Link to comment Share on other sites More sharing options...
kmb504 Posted May 14, 2017 Report Share Posted May 14, 2017 I'm sure it may has been covered, but I don't want to search this post for it. So let's say I have two subs, one in front the other, where do I start measuring for the port? Link to comment Share on other sites More sharing options...
ShadeTreeMechanic Posted May 14, 2017 Report Share Posted May 14, 2017 Measure from one end to the other. Sub placement has no effect on length. Edit: I think. We need as second opinion. 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
Airborne Posted May 14, 2017 Report Share Posted May 14, 2017 I am kicking around doing a huge tline in the backseat of my dually. Glad this thread still has life... Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted May 14, 2017 Report Share Posted May 14, 2017 1 hour ago, kmb504 said: I'm sure it may has been covered, but I don't want to search this post for it. So let's say I have two subs, one in front the other, where do I start measuring for the port? The length of the line is measured from the closed end to the open end, regardless of sub placement. If you are wanting to place the subs 1/3 down the line (which I always suggest), you would measure from between the subs. "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...
kmb504 Posted May 14, 2017 Report Share Posted May 14, 2017 Is there any way you can post an example? Link to comment Share on other sites More sharing options...
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