Fi Technical

I am going to be building a box for my 2 15" btl fully loaded, I am curious wat of the two would be the best and how big should i cut/make the port, Also let me know if I mite need to make the box a lil bigger. ( i am also using 3/4 inch mdf) And should I have a baffle in between the subs or would one large box be best? Box 1 height 19" width 39.5" depth 23" Box 2 height 16" width 39" depth 35" Any help would be appreciated.

a question for the man shawn fleming and any body else that know about spl boxes.for spl only,which box would be louder for a btl-18 with 5000 watts.a 6.2cf box with 98 inches of port,tuned to 64 hz. 7 cf box with 114 inches of port at 64 hz or a 8.5 cf box with 138 inches of port tuned at 64 hz also.for spl burps only.this setup is going in a astro van,4-btl's 18's.trying to find best box config.with port on driver side.all thoughts are welcome and valued.thanks BP.

i suck at understanding ohms. i have 3 Fi Qs DVC and i want them to still maintain 1.4 ohms when i put them in a crescendo bc2000d amplifier. do anybody know how i should wire it. thanks for taking your time to help me

Will a 6" aero port be enough for a fully loaded BL 15 in a 3.5 to 3.8 box

Hi, sorry to cross post. I just put this in the wrong section the first time... This i what i'm working with: 2006 Dodge Ram 2500 Diesel Quad Cab Big 3 upgraded 2- 15" fi BL 2- kicker zx1000.1 3/4" MDF custom center console box with 5.6 cuft of airspace after sub disp, bracing, and port. Would love to have a bigger box, but space is LIMITED. No divider between subs/ subs share air space Single Slot Port is 15.5" x 3" and 14.75" long (around 32 hz?) Subs will be down firing and port will face up. Definitely SPL Questions: 1- Are the port dimensions correct for a 32 hz tune? I keep getting different measurements depending on the port calc I use. I think carstereo.com…

Hey everyone, So i recently sold my 2 audiobahn 12'' sub woofers, and my amplifier. I have the money now to buy my 15''BTL fully loaded. I had a few questions that i am still not sure about. 1.What should my "ohms" be if im using a mono amplifier. 2.If my box is tuned to 3.25feet at 30HZ is that too little feet, and too low HZ? 3. Does anyone know a good mono amp to go with 1 fi BTL 15inch 4. Also is a BTL legit 2000RMS? i really aprciate all help, thanks everyone.

My amp is going to be a 1500d, for sure. Two SSD12s have a recommended ported volume of about 5ft^3, and a BTL15 has a recommended ported volume of about 5ft^3 as well. I understand the two 12s will move more air, which may be more impressive as far as my budget will go, and being realistic, I don't anticipate being able to buy another amp or the surrounding electrical to back it up for awhile. Anyway, I ask your advice once again. Should I go with two SSD12s or one BTL15 powered off of a 1500d running at 1 ohm? If built in their ideal boxes, which would get louder, or would it matter? What would be the pros/cons of either? Mahalo, Trevor

hey i got some cliff designs cd120c and im looking for recones need to handle about 1400+ rms they will be on a rd 1750 for now but im upgrading to a sundown 3000d. got anything. pics thanks

I kind of started a post in the wrong area for BTL box questions. But I am looking at getting a 15" BTL sometime soon. I do have somewhat limited trunk space though (40x40x20). I would like maybe a little of extra room in the trunk for putting somethings (ie bags, books, backpacks, skating equipment etc). Can it be done to get the same boom / sound quality with a smaller box? I know on my other post, somebody said it was possible to make a little smaller box with biger ports to even the difference out. But how far can you take it? Like (I know you couldnt but...) making a box that only acted as a brace for the sub and maybe have some sort of diminishing cone around the s…

Im tryna purchase 2 Fi BL 15's and i have a power acoustik BAMF40001/D...Im wondering how I should wire the voice coils and would it be better to get a dual1 or dual2???...This is for daily use also

Can I get someone to assist me with an enclosure design for dual SP4 18s. Max dimensions are 27L x 30D x 30H. I'm currently running 2 15s and wanting to go with 18s. Power is a non issue since I'm now using two Crescendo 3.5ks. If this is possible please let me know. Looking to order the subs this week.

I am going to build a box for a 12" bl or a q. My interior box volume (after subtracting speaker displacement) is 2.1 cu. ft. What kind of port and what dimensions do you guys think I should use . I haven't decided which sub I'm gonna buy yet. Also feel free to leave some feedback on the two subs (is there really a huge sq loss with the bl or is there a substantial bass level loss with the q)

a friend wants a fi q 18" in a blow through box in his S10. my thought was to build a box in the bed with a collar of linexed MDF into the cab. once i have the box built then i would build another box over it to span the distance of the bed rails and help weather proof the box in the bed. a ZX1500.1 will be his amp with a 220A mechman alt and a XS 2500 battery. he mostly listens to chilly peppers, some techno, basically what ever pandora throws on. to that end i think the sub might do well tuned a tad higher than 32 but what are your thoughts? is there anything that most people over look when building a blow through?

I am going to be ordering a 10" BL and was wondering which to get? Should I go with the dual 1 or 2 ohm? I plan on running it off the saz-1000d. If I get the 1 ohm, that would bring it down to .35 ohm, but with the rise, shouldn't that bring it back to almost 1 ohm? Just wondering as the amp reports that it is only 1 ohm stable. or would it be better to go with a Mmats 2100.2 and get the 1 ohm and wire them in series? this isn't something I need ASAP, but any ideas would greatly help the process. Or... another option is to go with the dual 1 ohm wired in series and go with the saz-2000d. Ideas?

Please tell me this is a warranty issue...? It happened last night noticed one sub quit, kind of looks like the wire was to short, there are no rips in the speaker just a broke wire? this is a Q 10.

I am interested in two 12" BTL N2 dual 1 ohm with all options and daily coil. I have 3300wrms available but I will set gains accordingly. I would like to keep the enclosure as small as possible but within an optimal spec. What is the recommended enclosure size for my setup? Thanks edit change of plans

I recently had a s10 ext cab with a 15 inch bl in it which im now selling because I traded it in on a silverado ss....oddly enough bigger truck does not mean more sub room sadly so it won't fit. Ive looked around alot and can't seem to find a case where someone used 2 12s in a ported box under the rear seat of the silverado and im not a fan of sealed boxes but it looks like thats my only option unless smoene could suggest something else. Was thinking 2 12 q's or ssds running off my memphis pr1000.1 amp and im not sure if i want them forward facing or downward facing, Im sure i could get a little more airspace if they were forward facing but does it really matter which way…

im going to be getting a 15 Q soon going to be powered by a sundown 1200rms at 1 ohm and i need a box could someone suggest some box sizes and tunning i want it to be loud hit them lows hard

specs on 09 fi ssd 18

i would like to know the dimensions of what 5-10 cubic feet is...im not a math whiz sorry. i would like to know roughly how long and tall it needs to be to meet 5-10 cubic feet. thnx so much guys, mike

Does anyone have plans for a ported box for a Fi 15" Q? It will be in the back of my 06 impala. I can post the dimensions of my trunk later, but any help would be awesome. I was looking for something tuned around 30-35 hz. Basically, I want something thats gonna really make my Q slam because all I really listen to is rap. Thanks.

I was wondering if 1.75 net cubes per side is too small for a set of 12 inch Q's???

I found this box on woofersetc.com the dimensions are: * 12" Single Ported Box * Height: 15" * Width: 30.5" * Depth: 15" * Mounting Depth: 11" * 3/4" MDF Construction * Volume: 3.00 cu. ft. And I wanted to know if this would be a good box for the fully loaded 12" BTL sub? Thanks for any responses.

Ok, so I'm wondering if the Q is the right choice for me now. Roughly how much power will a fully loaded Q handle? I plan on running the 1500D at 1 ohm, so I suppose around 1600W. Thanks, Trevor

Hey, This will be my first time buying FI subs and just had a question about what I should buy. I was gonna get two 12" FI BTL's and power them with a Sundown SAZ-3500D amp when it becomes available. Under the amp specs it says: ----RMS power, 2 ohm linkable/dual mono 6000W x 1CH ----RMS power, 1 ohm mono 3500W x 1CH I'm confused as to what the difference is would I be able to get 6000W to the two subs if i got the 2ohm versions? or should I get 1ohm? If I can only get 1ohm will 3500 be enough for two of those subs or would that be very underpowered? Any recommendations on the box size and port size would be greatly appreciated as I will have it made by someone. I'm …