Fi Technical

hey nick just tryin to see if this was indeed fixable, i got it from david (basebalz13) the magnet is cracked and its seized. i got pics not sure if david showed you or not already. if you want i can upload em.

Hey guys, bottom line is i have designed a few enclosures and they sucked. I'm not so bad on the building part, just the calculating port length and area and volume and stuff. I have a 15Q and was wondering if someone could design me a box of around i dunno 3-4cubes tuned to like 30-33hz. My trunk limits the box to be like 16-16.5 inches tall (otherwise it won't slide in) and uhh yeah thats the only real limitation. Thanks in advance.

HOw would 2 15 inch Bl's or Q's sound in a T-line? would it get really loud?

Ordering one x12 4 ohm sub today with BP Power option. It will be running in the 320 to 400 watt range. The specs call for a box .6 to 1.1 cuft. Why is there such a range and what is the difference if i built a box at .6 cuft versus building it at 1.1cuft? I have the room to build it to the max dimensions, just would like some more info? How do I figure out exactly what size I need to make it sound great? I listen to mostly older rock, 70's and 80's, but some newer stuff to as well as a little rap if it is a good song.

ok here goes we have the box made (except for the ports) it's 19.3 cuft after dis. for subs(3 18 btl fully loaded)and bracing, i still need to make the ports........just to give you guys an idea first i cant make just 1 large slot port would have to be 3 at most (med. size ports)and i would like to tune it around 33-35hz oh and the ports would be facing the same way as the subs it's somewhat of a wall/slant design any help would be highly appricated ............................. thanks ahead of time...........................

i have four btl 18s. is it safe to try to drill the terminals to make them just a little bit wider? i cant fit a full piece of 8 gauge into one terminal, i have to trim it just a little bit. and trying to fit two 8 gauge wires into one terminal i might as well just use 12 or 14 gauge because i have to trim the 8 gauge down so much its ridiculous. how bout taking either a unibit/varibit/stepbit (call it what u want), or a slightly bigger drill bit and try to make them bigger? extremely bad idea and i'm gonna end up needing to replace something because i'll break something? or be very careful and go slow and it will work? 2000 rms u would think u could fit a big ass wire …

Im planning on purchasing a single 12" SSD not sure what to get DVC1 or DVC2, i have a 08 ZX 750.1 kicker mono (2ohm stable). Now for the axcual question i listen to rap/hip hop, trance, and alternative rock and i have no clue what so ever on the enclosure that i need to use for the type of music i listen to. I have no idea on tuning ports. I would really appriciate if poeple could help me out to get what im supposed to use. Im looking to get a ported enclosure and this will be used in a Blazer(SUV). BTW how many cubic feet would be good for the sub. Im not looking into getting a humungous box in my cargo area. THNX

Before anything, how much power will a Q with BP cooling handle, if gains are set properly, no audible clipping, etc.? Okay, first off, the SSD should be louder then the Q, IN THEORY (disregard the box and everything), due to it's higher sensitivity, correct? Second, the SSD is known to be heavy on the low end bass, but a bit lacking in the higher freqs. How does the Q do? Will the Q slam as hard as the SSD? In other words, will the Q reach that ass-dragging low bass that rap music is typical of? Thanks, I'm going to ask a couple more questions based upon the answers I receive to this, so check back. -SteveSan

I need to get my box done before my subs get here. So I need to know how deep to cut so the subs will be flush mounted. Does anyone have that info or have a bl to check for me. Thanks

***FIRST*** I have a 15" fully loaded btl. the box its in is pretty big its 5 cubes. it has dual ports with sub and ports firing forward. i think the ports together is 80 sq inshes of port. the speaker is centered in the box with the ports on the ends of each side. just curious but would a box of the same size with a single port with sub in center or on the end with both firing forward be louder or the same. my video is posted on you tube and people are telling me it would be louder with a single port then dual. ***SECOND*** i am running mt btl with stock electrical alt, battery , and chitty 4 guage wire. no big 3. i have a ssl soundstorm 4000.1 mono amp. i have heard th…

Can Fi recone this sub, it has a Tc9 motor with 3 inch coils. A guy over on ROE is selling one, it is only the motor and 4 spoke basket.

Hello, i want to build a box for (2) FI Q 15s, here is the size of the area i have too work with WIDTH = 32 INCHES HEIGHT = 18 INCHES DEPTH = 29 INCHES I will be able to add height to the box if I shorten the depth for a sealed box i can use the cutout sheet that FI recommended at 2.5 c.f., i'll just build two seperate boxes then just bolt them together. now for a ported box i have no idea what volume or what to tune it to??? i listen to metal, rock, country, blues,everything inbetween, but i don't listen to rap. FI specs for a ported box is 2.8 - 4 cu. ft. and use 12-16 sq. inches of vent area per cubic ft. of volume. i would like a box that would not be too boomy, i lik…

I'm looking at building a custom box for my 2 fully loaded fi btl 15s and need some help with the dimensioning. Im looking at have a 9.5 net cubic foot box tuned to 32-34hz with a solid wall brace in the middle separating the two subs. For power im looking at either 2 rf t2500-1bds, 2 sundown audio saz 3000ds, or a autotek mean machine 4000.1. Does this seem like a good setup. Im looking at putting it into a chevy silverado ext. cab of course with all of the electrical upgrades also. Thanks for any help

hey whats up guys just got my box built from this guy that has built them for me before and never had a problem but this one just looks not right so i need help from you guys....the deminsions are....width is 48" height is 22" depth is 31.50 port hole is 3.75 x 22 port length is 27.75 and it is supposed to be tuned at 32hrtz...does this sound right or do i need to have him redo it thanks if i forgot something let me know thanks again

Its almost time and Planning has started. I still need to find out if I can make a slot port work if not maybe two square or even aero ports. Suppose will have to do some maths and cross-checks. Draft box (not to scale) Let me know what you think.

I just recieved my Q12 D2 and am now shopping for an amp. I'm looking at the Rockford Fosgate Punch P1000-1bd. This amp sends 1000w X 1 @ 1ohm or 250w X 1 @ 4ohms. I can run my Q12 in series and have a 4 ohm or parallel and have a 1 ohm. If I run this parallel, one of two things will happen, I don't know which, my understanding of electronics is limited, obviously. Either each voice coil will see 1000 watts, meaning 2000w are being run through the sub or each voice coil will see 500w, meaning 1000w are being run through the sub. If I run it in series, will each voice coil see 250w, meaning the sub sees 500w or will each voice coil see 125w, meaning the sub will s…

Looking for some help designing a new box for my sub. I listen to a lot of rock/metal, but I do like rap and would like to be pretty loud. Any help with sub placement, volume, what to tune it to would be great. also it is in a blazer. As of now its in a sealed box around 2.6 cube with a Hifonics 1208d and i know it has so much more potential. Thanks and if any other info is need please let me know

I am kinda worried about something damaging my Q. It is going to be firing upward, toward the roof of my tacoma in the extra cab. But i don't want it to be in the way of the sub (excursion)

look at the cooling channel around the one o'clock position, it isnt lined up but all the rest are! is this normal? if not any performance issues from this?? thanks

So this is how much room I would like to use, but I have more room if necessary (I need some trunk space :laugh:) My dimensions are 33x21x17 and here is a picture with how what space I would like to take up. Just post your input on if this is good or if I should add more space for the box and how much! This should be around 6.817 cubes without any displacement. (btw this picture isn't mine I just googled what an 05 equinox trunk looks like, and no those side panels do not come out) hmm for some reason the picture came out a little blurry, but I think you should get the point and for the height I can also do up to about 21 inches so if i wanted to mount the sub back i cou…

Hello, I recently purchased an Fi Q 10" and have it in a .6^3ft sealed box (Before displacement). I am running it off an Alphasonik PMA1200D @ 4ohms (approx. 1200 watts) and I notice that the output seems to be really low and kind of dissapointing. It seems to get any real output the gains have to be turned very high along with the bass boost (which of course in not what you want to do). At this point I am not sure if I should try it in a ported enclosure or if something could be wrong with my amp perhaps. Has anyone else had any of these issues? Any suggestions? Thanks, Jim

Without going over my windows and taking the whole back up, i have 40" D x 46" W x 22" H, which is 11.8 cubes gross, will that be enough for 2 BL 18's? It says to use 5-10 cubes each, thats a wide range, i guess depending on power to them mostly. I will be running 2 saz1500d's strapped to them. I have more room than that if needed, just want to leave a little space for batteries and amps.

I just added the D1 copper coils to the SSD series. Previously the copper coils were available only in D2. The addition of the copper coils to the SSD subs adds a bit more SQ in some applications. It also allows the subs to play deeper in the same sized enclosures as the standard aluminum coiled SSDs, or have the same response curves in slightly smaller enclosures. Thanks... Scott

hi im about to order a bl which im gonna use for my daily setup. but i also wanted to use it for spl comps locally so i wanted to make 2 different boxes. i have a mini van so size is not a concern i can make a box in the back as big as 20 cubes. so can u guys help me w/ measurements and stuff??

A lead came off my BTL as I explained here. Wondering if this lead is the proper size/wattage...or possibly what you would recommend. Love my sub...thanks for the help! ~Abstract~