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Hello all! This will be really really slow going since this is a high school build lol. Anyways, I started out 2 years ago with a 92 pontiac sunbird and put a little pioneer 12 in it and its been a steady road ever since. Here i am now with a newer vehicle and bigger plans. Vehicle: 03 Jeep Grand Cherokee Current Gear: Kenwood KDC-X397 4 gauge knu cca Alpine MRV-500 SSA Xcon 18 Future: Crescendo Symphony 1500 (hopefully soon) 1/0 Welding Cable ....maybe two xcons c-pillar wall.... The jeep Kenwood Most recently removed setup Box And its In!!!!
OK, So I recently aquired a 1996 jeep grand cherokee and am in the planning phase of the project. I am looking at running a 3:1 ratio 4th order with either 4 15" or 18" drivers. The issue I am running into is that I am concerned that the box height will end up too low to mount the drivers on a flat baffle. With this being said I was wondering if anyone has toyed around with angled baffles. With this setup I was going to do a driver's side port and tune around 45-50hz. Would this be too much of a hassle and prove to be a nightmare, or should I try to use a more upward firing baffle to fit the 4 drivers (similar to watt's truck but larger and drivers stacked in a 2x2 config instead of 1x4). By my figures I should have roughly 27 cubes to play with as far as interior box volume. If anyone has any ideas im all ears (i like getting loud but like lows also). Planned power is in the 15-18k range, and since my last build ran 12k and only touched 54s, id like to get as close to 60s as I can. Not really new to box building, just having "writers block". Thanks, Chris
i just got a new box built for my subs ( 2 12 inch dual 2 ohm L5 kickers in a 6.5-7 cube box tuned to 35 htz). i picked it up from the guy and set my amp at 25 htz with the gain set at about half way from what i can see on the dial. first, i must say it sounded amazing! i was running a 3.3 cube box that was kinda jimmy rigged together by the guy i bought them from so this is exquisite great sound, good range and a ton of sound pressure. if anyone needs a box built in central to eastern washington/ central idaho let me know i'll get you in contact with triticum audio. ok, so the guy that built my box also installed the subs and wired in at a 4 ohm load. about a week after i got them home i got curious and pulled the subs out and switched everything to a 2 ohm load. it sounded awesome. great lows, tons of pressure and great sound quality. next time i had it going and my amp kept shutting off at mid to high volume and it sounded like i had a couple of crap tens in cardboard boxes. never had this issue. i'm running a kenwood amp rated at 500rms@ 4 ohm, 900rms@ 2ohm and they were even advertised to be 1 ohm stable. i have 1/0 power cable and 2/0 ground with solid copper terminals on both ends cause i filed down a set of terminals to actually bolt into my amp. i replaced my body ground with a piece of 1/0 instead of the 4 gauge i have for my big 3. changed the subs back to 4 ohms. i'm still not picking up the really low frequencies i was getting. tuned it in, and it sounded decent. tried running at 1 ohm and blew out 2 fuses simultaneously. back to 4 ohms. NO CLUE WHATS HAPPENING!!!!! is my amp taking a crap? could it be my off the shelf kenwood deck? could it just be my subs? do you have to acoustically reference each sub according to which voicecoil produces what? NO CLUE!!!!!
hey everyone, so, soon I will be getting a 1998 Jeep Grand Cherokee Laredo. I have the majority of my system ready to install. (please dont judge, i was not as educated when i bought this stuff) Rockford Fosgate P2 12" (2011 model) (it meh...), Rockford R500-1 amp (low efficiency, 58% @ 2 ohms) , Sony CDX-GT565UP (love it), and KnuKonceptz 4 gauge kit. right ow I have a crappy box to test with, its 1.72 cuft tuned to 31Hz via 4" aero. I will be building a 2-2.2 cuft box tuned to 32 once i am sure how i want the port and sub positioned. the current box i have the sub is on one side and the port on the other. so it will be easy to experiment how it will be positioned. my question is, how should i position my sub and port? i will test and tune once i get the jeep, but im curious if anyone is/was in the same position and could give some advise. im thinking either sub up center, port back driver side. or sub up center, port side (driver). any opinions? I guess im just eager haha. thanks for your help!