Fi Technical

Or should I say my son wants loud. I've e-mailed Scott a couple of times, but I know how busy he gets. I thought I'd try here. What I'm looking for is the loudest possiblw set up that I can get with an honest 1400 watts @1 ohm available. I can build a box any size I need to, so that's not an issue. It's going in a mini-van so I've got plenty of room. He's trying to do better than his current setup of 2 AA Arsenal 12's in a ported box (tuned around 32-35Hz). My initial thoughts were 2 SSD18's w/dual 2 Ohm vc's in a ported box, but I'm looking for advice from someone from Fi. Once the drivers are chosen, I'll need help with box dimensions. TIA, Carl.

Is 324sq in per sub too large for a striclty SPL enclsure using 4 Fi BTL 18's in a 32cu ft. box

Just a quick question, I planning on buying a 12" Q w/BP and I need to build an enclosure, going sealed. With dimensions of 19w 13h 11d, do I need to add int bracing? I was thinking just a strip of 2x2 along the top, back, and bottom. If it doesn't need bracing I can just make the box a little smaller to give the same volume Thanks, Chris

I was just wondering if you guys could make a dual 1 or .7 recone for a 05 XXX?

Are there any 3D designing software to design a custom subwoofers box? thanks -JJ

How do you guys go about breaking your sub in? Do you let it break itself in overtime or do you play a nice tone to help exercise its suspension? Well I should be receiving my 15" full loaded BL today and I can't wait till I get home to get it so im looking to exercise the suspension so that it can be broken in for the weekends upcoming local comp event.

this is a test box i built. okay it's 1.1cu. ft. and i had it tuned from 32-36-40-48. after trying all of these, the other box i have in the car is louder. do i not have enough port or wrong place? i don't know. at 32 hz the test box has a smoother transition. all the rest of the tunings were okay, not great. anyways my question is what size box would you guys recommend for spl and at what tuning? my car peaks at 43 hz in the old box. maybe i was expecting too much but after hearing the bl in my existing box i got all excited. just wanna try and make an spl box the one i have now is a pretty good dd. thank you in advance to everyone. btw it's a 3" port and a 1…

How much does the slug only, on the new BTL weigh? Also, how is the top plate and t-yoke manufactured? Is it milled, molded, cast?

I didn't take into account where I was going to put my amp when designing this box (which is going to take up my ENTIRE trunk...so I had to pull one of the walls in slightly and that brought me down to only 4.7 cubes net after port and sub displacement...is that too small? Will I see any adverse affects?

I was wangin my ssd the other day and it was wangin hard, loud just like fi should then i turned it off went inside and about 2 or so hours later i went back out there was about to leave and the sub or amp just didnt pound like it did before. It just wasnt as loud and didnt vibrate my whole car like it did before. I think it might be the amp, but im not quite sure. I figure it might be a connection problem or somethin, but i checked all that and no problems. Thanks Mike

i have 2 12inch BTL's and was wonderin what the best cuft and hz would sound the best. i listen to lots of rap and like my music low and loud. also how much sq in of port should i have?? should it be a port for each speaker or can it just be a big port in the middle?? i have a drawing that i like but it isnt tuned right. i'll try to get a pic up of it. if someone would like to email me or pm me my email is [email protected]. any help would greatly be apreciated. also someone was tryin to tell me that btl's are not good daily drivers that they wouldnt sound very good...any advice or opinions would be greatly appreciated. thanks

Since the board was wiped out not many old posts to search through. Joining the FI ranks and picking up a 15" Q for the GF's car. Trunk space is important to her so I'm looking at doing: 2.8 -3.0^3 @ 31Hz. Sub will be getting around 1000rms off a PG amp. She listens to most anything but country, so I'm looking for an all around good sounding/respectably loud set up. The few posts I've found most guys are using around 3.5^3, so anyone have experience with this sub in the smallest recommended size of 2.8^3? TIA...Mike

ok so heres the deal. I currently have a 12" btl in a 2.25 @ 32 enclosure being run off a crunch gp3000pro. It is loud don't get me wrong, but of course I am always looking for a little more. So I am thinking of building a new enclosure for it and I am just looking for ideas. Thought about tuning to around 35, but not sure if it would be worth it or not. This is the first single sub set up I have had so maybe I am just setting my expectations to high, i dunno. I figure I might as well try a new enclosure before I jump into a whole new set up, so any suggestions are welcome!

I have 2 Konaki 12's with Incriminator Audio recones on them. Overall they sound great and hit the lows great, but the power handling is lacking. I have them both on a Crunch GP3000D-Pro which is putting out between 2500-3000 watts given my electrical right now. The amp is set correctly and the system thumps hard, but it seems like they bottom out wayyyy too easily. I play a lot of low stuff (<36hz) and when I turn it up too loud, the subs bottom out. Basically, I'm wondering if Fi would have any options to boost my power handling to 1500+ watts a piece and maybe some spiders that would stay stiff and allow me to play low frequencies at high volumes without bottoming o…

Could a X10 with the BP power option be put in a larger box than .55cuft sealed? I have a box that is ~.75cuft and another that is ~1.2 cuft. Both sealed. Just curious how/if it would work in one of the larger boxes. With the BP option, what rms can I expect to run in the .55cuft box? And if poss what rms in the larger boxes? Thanks

would i be fine if i just did the big 3 upgrade with 0 gauge wire. I have a 12bl fully loaded and a sundown sae 1200d.

Is 5ft^3 net to much for a BL 15 running on 1200wrms?? My plan is to make a box with an 8" or 10" PVC aero port. If Im correct... 1. With 5ft^3 net and an 8" port would give me 10 in^2 of port area per ft^3 box area. 10 in^2 seems to low... 2. With 5ft^3 net and a 10" port that would give me 15.7 in^2 per ft^3 box area. 3. But FI recomends running 4ft^3 box and with an 8" port that would give me 12.5 in^2 per ft^3 box area. If I tune my box at 32hz which option would work the best for daily use on all types of music?? Any help would be aewsome.

I have 4 18 inch fully loaded BTLs that I will use for a daily driver. Can anyone help with how many cubic feet each sub should get? I want a ported box and will power them with 2 jbl a6000 amps. The manual says 5- 8 cubic feet but what size should i go with?

i have 2 15 qs and i was planning on putting them in a 08 honda accord, any suggestions on whut box to throw them in, ported?sealed? really not sure on whut direction to go with this

Hey guys!!! So I am currently running a box built from Dave the box guy. Its 2.5 cubes after displacement, tuned at 35 hz. I have a the ssd with flatwound and bp power, a 2010 model. Anyway, I LOVE the way this thing sounds. But I got to thinking.. I know that Fi Recommends the max ported box space to be 2.5 cubes, and thats what I run. But I am still a novice, and got curious about mechanical handling... Would running this at 1000 watts rms daily (MB Quart ONX 1500.D amp) be okay to do? Cuz thats what I am running, with the amp tuned as well. Just wanted to make sure that may check out okay, or do I need to reduce my amps tuning? Thanks guys! -Chance

Hello everyone I'm new to this and need help.Ok I have a 2000 Buick Lesabre I'm gonna purchase 2 fi bl 15's and use a sundown saz-3500d amp.The question i have is should I get a dual 1 or dual 2? Also what kind of box and components should i get?Any suggestions would greatly be appreciated.

well i noticed yesterday when i was listening to late night tip that my sub bottoms out on one of the bass lines... how might i go about fixing this ?? i got a 15Q powered by an hk401sx

So im designing an enclosure for my btl thats coming in for my crew cab truck thats going to sit on top of the seat and im not sure what the best orientation for the sub and port are for trucks for the most spl. Is it sub forward port up? Sub up port up? Heres one design that i put together, about 7.75 cubes net after displacement, 32 hz, the port will be facing up and sub forward. Are there any design flaws that you guys can see with the port? Is there enough space between the end of the port and the back wall of the box? Any other recommendations or comments?

I want to build a console box in my single cab truck and im trying to see which would be the best. Setup 1: 2 Fi X 12 D4's ported Setup 2: 3 Fi X 12 D4's sealed Setup 3: 2 Re SE 10 D4's ported or sealed Setup 4: 2 Fi SSD 10 D1's ported or sealed Only reason im considering Setup 3 because I can save about 80 dollars on the subs over Setup 4. And im trying to be louder than a buddy of mine with one RE SX/BL 12 Hybrid ported as a console box.

hey pm me or shoot me an email at [email protected]