@XRegulatorx man that's a hard question, the FI q's are really good but if you get two you'll have to run them at .5 ohm, idk if the 2500bd is stable for that, my friend has the 15" SP4 and it slams in his Honda, its in a 3.5 cubic foot box tuned at 34 Hz, two 15" subs will be louder than one, but idk what a SP4 sounds like in a sealed box, I'm sure its really clean and has incredibly deep bass, I would go with the two 15's it would be louder in a sealed box.
Hey I'm thinking about one of these for my next install. I have 1 Rockford T25001BDCP. I will have to go with sealed enclosures due to space issues. Would you prefer 2 15" FI Q Sealed or a single 15" FI SP4 Sealed?
@lowhzboom yeah other subs do have a lot of movement, the q's are good but the sp4 will hit lower notes, it has the 4" voice coil and more xmax plus more watts, one would be really loud trust me I would know, I set a car alarm off today with my SP4 running at 600 rms.
OK preciate it. Was bout to get n2 until I seen these videos about sp4. I'm gone put in a order for one next weekend going in a 2000 explorer. On a AP 3000d. Is there a way I can get full specs on this sub so I can build a perfect box for it
@Havenbonebhz space spider means that you coil will have more control when switching bass tone so you will never have coil rub, think about it like this, when you rideing on a stand up bus and you not hanging onto anything your moving around a lot, but as soon as you grad hold of the pole your not really moving, space spider is highly recommend to have if your using for daily.
@jhcutlass350 it looks like a real nice sub! do you think 2 18"Q's would have more lows then a sp4 i want to do a big setup space is not a problem and i know more cone aera genrely = more bass but not allways what would you think
Dannr3- dude I have the lowest volt of 12 of that and this thing is loud man trust me when you get your stuff up to date you will be in pressed, I cant believe yours isn't loud I have the brz2400.1 and you have the t2500bd, yours should be hitting harder than mine.
i dont want to post until its 100% cuz peeps talk there shit no matter what. even if they have gay ass kickers or some weak shit. they dont know how it is haha.
mine is bumpin alright i have volt issues need to upgrade to the mechman 270a alt. but when the kenetik's are charged its at 3500 rms and still doesnt do the full 4iinches of ex. im going to strap my t2500 to another by summer i hope. dont get me wrong i love the sub.
@dannr3 could be the H/U settings.. or something are all your gains set right? and have you checked the voltage drop or if you have one.. doesnt sound right
Thats insane flex man. Yeah for my set up i have a 200 amp alt. My SP4 will be done tomorrow so ill be headed to FI. Make sure to check my vid tomorrow
@XRegulatorx man that's a hard question, the FI q's are really good but if you get two you'll have to run them at .5 ohm, idk if the 2500bd is stable for that, my friend has the 15" SP4 and it slams in his Honda, its in a 3.5 cubic foot box tuned at 34 Hz, two 15" subs will be louder than one, but idk what a SP4 sounds like in a sealed box, I'm sure its really clean and has incredibly deep bass, I would go with the two 15's it would be louder in a sealed box.
jhcutlass350 6 days ago
Hey I'm thinking about one of these for my next install. I have 1 Rockford T25001BDCP. I will have to go with sealed enclosures due to space issues. Would you prefer 2 15" FI Q Sealed or a single 15" FI SP4 Sealed?
xregulatorx 6 days ago
@lowhzboom yeah other subs do have a lot of movement, the q's are good but the sp4 will hit lower notes, it has the 4" voice coil and more xmax plus more watts, one would be really loud trust me I would know, I set a car alarm off today with my SP4 running at 600 rms.
jhcutlass350 1 week ago
OK preciate it. Was bout to get n2 until I seen these videos about sp4. I'm gone put in a order for one next weekend going in a 2000 explorer. On a AP 3000d. Is there a way I can get full specs on this sub so I can build a perfect box for it
havenzonebhz 4 weeks ago
@Havenbonebhz space spider means that you coil will have more control when switching bass tone so you will never have coil rub, think about it like this, when you rideing on a stand up bus and you not hanging onto anything your moving around a lot, but as soon as you grad hold of the pole your not really moving, space spider is highly recommend to have if your using for daily.
jhcutlass350 4 weeks ago
Quick? What does the spaced spider mean do I need it.
havenzonebhz 4 weeks ago
Yes these sp4 woofer have insane amounts of cooling.
jhcutlass350 1 month ago
@jhcutlass350 it looks like a real nice sub! do you think 2 18"Q's would have more lows then a sp4 i want to do a big setup space is not a problem and i know more cone aera genrely = more bass but not allways what would you think
id be puting them on a aq2200d
lowhzboom 1 week ago
Dannr3- dude I have the lowest volt of 12 of that and this thing is loud man trust me when you get your stuff up to date you will be in pressed, I cant believe yours isn't loud I have the brz2400.1 and you have the t2500bd, yours should be hitting harder than mine.
jhcutlass350 1 month ago
i dont want to post until its 100% cuz peeps talk there shit no matter what. even if they have gay ass kickers or some weak shit. they dont know how it is haha.
dannr3 1 month ago
mine is bumpin alright i have volt issues need to upgrade to the mechman 270a alt. but when the kenetik's are charged its at 3500 rms and still doesnt do the full 4iinches of ex. im going to strap my t2500 to another by summer i hope. dont get me wrong i love the sub.
dannr3 1 month ago
@dannr3 could be the H/U settings.. or something are all your gains set right? and have you checked the voltage drop or if you have one.. doesnt sound right
TheJacob7894 2 weeks ago
Mine is comming on tues!!!!!!!
xxbloodstainedlovexx 1 month ago
I have to wait till Monday to get the sub back. @ DBbyDesign we all know they are just as good at excurt . Why even mention it?
dannr3 1 month ago
Dbbydesign- yeah dc is a great brand too but Idk what it is about FI I just like.
jhcutlass350 1 month ago
@jhcutlass350
Maybe that Fi incorperates cooling into their sub? Vs DC having zero cooling?
christopher12344321 1 month ago
For sure man ill be looking for it.
jhcutlass350 1 month ago
Thats insane flex man. Yeah for my set up i have a 200 amp alt. My SP4 will be done tomorrow so ill be headed to FI. Make sure to check my vid tomorrow
dannr3 1 month ago
you know fi needed to make a smd killer lol. shit looks nasty. im jealous lol
lovealotsofbass 1 month ago
Yeah it has major flex on my string wheel, and I only know one other 18" that can move like that, SMD
jhcutlass350 1 month ago
@jhcutlass350 awesome subs. but DC can excurt just as good.
DBbyDesign 1 month ago
@jhcutlass350 SSA's can move but i love FI as well there both great USA brands!
TURBOGSRHATCH 2 weeks ago
@jhcutlass350 re xxx 18 and lms ultra 18 move real good to
lowhzboom 1 week ago
WTF, I felt that earthquake here in New England!
sharief25 1 month ago