Loud_Low_SuperSlowed Posted May 22, 2016 Author Report Share Posted May 22, 2016 Yes they are the BFM Tuba Ht design 24.5 inch overall. and currently 3 but i measured and 4 will fit in a toyota seqouia with all back seats out if course. port facing up. and ive only ever tested 2 in a car. i have them in my room until i turn 16 in 10 days. I will also try to post pictures. as soon as i figure out how to... Link to comment Share on other sites More sharing options...
Loud_Low_SuperSlowed Posted May 22, 2016 Author Report Share Posted May 22, 2016 [/url] Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted May 22, 2016 Report Share Posted May 22, 2016 The Tuba HT, like pretty much all horns, is picky about what subs are going to work in it. Most car audio subs are not going to give you good results, they have too stiff of suspensions and too high of Fs. Also, when it comes to subwoofers, the sensitivity measurement is pretty much meaningless. Of the subs you were considering, both the SA-15 and the B2 IS 15 have too stiff of suspensions (too low of a Vas). The PSI Platform 1 15 would be acceptable. My suggestion would be for a FI X-15. Its QTS is a little higher than ideal, but other than that is looks pretty good. No matter what sub you choose, if you are going to be putting much more than a couple hundred watts to them, you need to set your subsonic filter to about 26 Hz or you risk damaging your 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...
Loud_Low_SuperSlowed Posted May 22, 2016 Author Report Share Posted May 22, 2016 Thank you very much for your time and effort. I will be upgrading to the Fi X15's with BP option and filter them at 26hz Link to comment Share on other sites More sharing options...
ckeeler11 Posted May 23, 2016 Report Share Posted May 23, 2016 Isn't one of the best things about those horns how low it plays? so you are going to set your subsonic filter to 26 hz and kill all the low end output. Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted May 23, 2016 Report Share Posted May 23, 2016 Isn't one of the best things about those horns how low it plays? so you are going to set your subsonic filter to 26 hz and kill all the low end output. They do play low, but with most subs the power handling drops off fast below 30 Hz. You can play as low as you want if you only put 200 watts to them, but if you are going to push closer to the RMS rating of the subs, you need the high pass filter to protect them from over-excursion. If you look around BFM's website he mentions that you don't "need" more than 200 watts with one of those subs, he fails to mention what happens if you exceed that power level though. THTs are actually tuned to about 30 Hz, below that the basically function as a sealed box and rely on room gain to boost the low end. "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...
Loud_Low_SuperSlowed Posted May 26, 2016 Author Report Share Posted May 26, 2016 Link to comment Share on other sites More sharing options...
Loud_Low_SuperSlowed Posted May 26, 2016 Author Report Share Posted May 26, 2016 the smaller side of the access panel is 8 and 5/8inches and the larger side is 10 1/2inches and right where the sub mounts toward the smaller side is over 9 inches. and anways the magnet on a sub isnt the whole diameter of the sub(ie. magnet diameter isnt 15 inches) but bfm says max mounting depth is 8 inches?? is this so that the pole can habe enough space to exspell air in and out? if thats the case some subs dont even have a back pole opening. my question is can i mount a slightly larger depth sub in this box? lets say 9 inches max? Link to comment Share on other sites More sharing options...
ckeeler11 Posted May 26, 2016 Report Share Posted May 26, 2016 mounting depth is usually measured from the bottom of the flange so make sure when you measure you account for that depth since you are reverse mounting the sub. Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted May 26, 2016 Report Share Posted May 26, 2016 Sorry, I was going to reply to this yesterday but then I forgot. ckeeler11 pretty much said what I was going to. The total height of a sub is going to be its mounting depth plus the thickness of the mounting flange plus however much the surround sticks up above that. "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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