Subwoofers / Speakers

For the longest time I ran my SPL15 inverted due to my box being just under 4 cubic feet net. I also made sure to reverse the polarity on my pioneer HU when I ran inverted . A few days ago I got bored and decided to mount the sub in the "normal" non-inverted fashion. HU sub polarity setting was set back to normal rather than reversed. The sub sounds much louder now and low end reproduction is much more powerful. I thought by putting the motor in the box would decrease net volume therefore raising the tuning a bit. Doing so seems to have had the opposite effect. Box is tuned to 37ish with sub mounted inverted. Can anybody explain why this happened?

I'm building a 99 2dr Tahoe with 4 DC level 6 18's with 20k watts going to them, and I need some suggestions on the mids and highs. I have an Eclipse 7200 mkII head unit and an Audision bit one laying around that I will be using. I lalso have a DD C2 and an Alpine pdx 150.4 that are not being used that i can use or I might just buy new amps. I need a front stage that will keep up with the bass and not sound horrible. Thanks

I'm trying to make a descision between these 2 subs. I plan on running only 1, off of 1500 watts rms. I can make any electrical upgrades that are necessary. I drive a Dodge Ram 1500 Quad-Cab, so space is somewhat of an issue. I currently have a box with 2 12's taking up 2 of my back seats, and would like to try and free up some more space. I have heard that the Sundowns do well in smaller enclosures. My main goal is to hit lows, get loud, and sound smooth. I listen to rap/hip hop and Chopped and Screwed music. Any personal experience with either of these subs is appreciated.

What would be louder an sa12 in a tline or a sa 15 in a lport? Amp suggestions?

im thinking about getting some ppi subs i have read that they have pretty good SQ for there price and i was just wondering if anyone knows if this is true? ive tried looking on youtube and other places but not alot of people have them or atleast they dont put them on the internet but if anyone knows anything about these subs please hit me up i would like to know more about them.. thanks

Just another fail in the recent line of events affecting my car... Immediately realized I'd blown one woofer the other night when it stopped playing and the car filled up with a sickening burning scent, pulled the box out today only to discover not only did I have one crunchy woofer, but other one was not far behind! These woofers have more than fulfilled my expectations and have had a long healthy life of two years, no BP Option, run at 100W over spec. Kudos to Fi for building such solid woofers. So now, I sit bassless... thinking about my next project!! I love the output these guys had, but I also missed my trunk space... many times a spare tire would've come in handy! …

I found me box builder for my truck. the enclosure would be a little over 2.4 cubic ft. net so my options are quad 8's in a custom enclosure or two 10's in a fox acoustics enclosure. if I go with the quad 8's what's a good option to go with under $140 per sub our $220 with the dual 10's? I want something thats sound good but somewhat loud at the same time

I BAUGHT THIS FI 18" SUB, AT THE TIME OF PURCHASE ALL I KNEW WAS BTL AND BL AND I FIGURED I BAUGHT THE BL BUT AFTER LOOKIN THRU TOPICS OF GETTING IDEAS FOR MY BOX I WAS GUNA BUILD, I RAN INTO THE OTHER SUBS SSD Q BTL BL AND ETC, CAN ANY ONE GIVE ME ANY INFO ON HOW TO FIND OUT WUT SUB I HAVE PLEASE AND THANK U.

I am currently running 2 of the Soundqubed HDS 215's in the backseat of my mustang convertible. Do I like them? Yeah, but the problem is the box takes up my entire back seat and is way to small for those subs and tuned too high. I am missing a lot of low notes and I believe lots of output. I want to sell them and get a new box for a single 15. I am keeping the Hifonics 1700.1 but I need a sub to go in the box. I am looking at this box (http://www.ebay.com/itm/like/321813323806?ul_noapp=true&chn=ps&lpid=82) at 3.5 cubes total tuned at 32hz. (I can also reverse mount the sub for extra airspace) But I need a good sub to go in it, but I don't want to spend more tha…

I know you guys will recommend going full size... I have an older Toyota Landcruiser FJ60 and want some good bass without sacrificing storage/dog toting ability. I am looking at one or two enclosures in the rear quarter panels (out of sight and paw proof). I was thinking 10" or 12" subs (likely two - one ea side). Powered by a single Alpine PDX-1.600 The JL 13.5" won't fit. Pioneer 1201's should, otherwise not sure what you guys would recommend getting. total depth (not counting what hte enclosure will use up is about 5.5". Thanks for helping me find something!

I have 400$ (budget for buy a subwoofer) ive been looking/shopping for a nice big ""SQL"" subwoofer who can sing music at low frecv. I`m interested to hit low (28-30Hz). I listen rap - dub step music, my car is 4 door hatchback. HU is alpine 9831, amplifier will be HFi2000D. I have a second batteries and 0awg cable. Someone recommended me: TC Sounds LMS-R 15 SSA XCON 15 or 18 FI BTL I have not heard any version. I`m from europe and i want to buy it from USA. I also want your recommendations to buy best solution. Thanks.

Would a DD 9518 on a RF T15001-bd be ok as a daily driver? Don't care much about SQ, just wondering if this sub can take hours of daily pounding. And also, off topic but is port area separate from internal box volume?

In general what would be louder between 2 fully loaded 18" Fi BL's, 1 18" fully loaded BTL N3, or 1 18" AA Smd woofer. Will be powered to Hifonics HFI3000d. Already got the amp. If I get 2 subs the box will be 13cuft after displacements double baffled and braced and tuned to 32hz. or with a 1 sub setup it will be 7.5cuft after displacements double baffled and braced and tuned to 32hz. I mainly care about LOUDNESS (No SQ) such as db reads etc. at least 149-152db. Setup will be going into 1996 Chevy Tahoe. Looking for a good hard hitting daily driver. Dont wanna spend more than 850 for subwoofers. "Hope This Helps" P.S. Im also interested in DC Lvl 5's and RD Audio Heavywe…

What would you rather do? 6 cheapish 12's in a sealed box or 1 awesome 18 in a decently big ported box? Both would be on the same power (2500 rms) But 6 12's has alot more cone area but a sealed box. 18 has less cone area but a ported box 18 would be a bit cheaper and better quality. But 6 12's have more cone area lol. So what do you guys think? If you have any other suggestions, I have up to 8 cubic feet before displacements. Have 2500 rms. Thinking bout running the Zcon or something similar for the 18. The 12's would be infinitys

Not looking for anything spectacular, just something decently loud with decent sq that gets low for around 150. This will be going in a suburban so there is plenty of room. I was thinking about 1 15" RE srx? Or maybe even a 18" dayton classic? Just looking for some cheap bass, nothing extravagant.

Hello all. Need some assistance. I have a 2011 Lexus GX 460 with Mark Levinson sound system. The system sounds great except for the sub.I have pulled off the back panel and reveled that the factory was a 10" sub. I currently own a Alpine PDX 600.1 I will put that behind the panel and will replace the sub run a LOC. I checked the factory sub and it was 8 ohm surprisingly but know if I replace and wire up a replacement sub it will not give me what I am looking for. I previously had my PDX 600.1 running a JL Audio 10-3v3 it does not fit its around 6" mount depth. That sub in a small sealed box rocked and am looking for something similar in the factory location. I migh…

So after having my sub for 3 weeks the suspension is gone on it . It is a DC Audio Level 3, i had it in a 3.4ft^3 box tuned to 32HZ running less than rated clean power to it (used a DD1). It never over heated to the point I could smell the coil but today it started bottoming out and i took it out of the box and could bottom it out with one finger. Did i do something wrong or was this a manufacturer error?

I had 6x 8v batterys i aquired in a trade, and a Friend of mine Alan needed them, So we worked a Trade, i needed a Sub for my Niece and did not want her to have generic Junk, ( we live in Louisiana ) it's a long storie but Alan Hall built this sub from: a Kove Audio Armageddon Motor / DD 9512 Basket / Re Soft parts i cant have MY Niece running around town with common JL/RF/Kicker crapp we build the boxx tomarrow... now too find an Amp

So the time has come to purchase a new subwoofer. I have been using a Rockford P3 for the last couple months and loved it but decided it was about time to move up in the world of the bassheads. I have a really hard time deciding on the simplest of things and thats why im posting here to try and get help on deciding. i by no means mean this to be a "VS" thread. just need a push in the "right" direction. so the 3 subs im tryin to decide on are: -Ascendant Audio Mayhem 15 -Fi Audio SP4 15 -DC Audio level 4 15 ill be running it on one of the Hifonics mt. olympus series amps (the one that best fits the particular subs RMS rating, of course) the sub will be put in a custom…

Any one had experience with any of them I've heard a ton of good things about the ab xfl not sure what route I'm going to go will be in a sealed clamshell I want to be able to slam lows but still put up a decent number

Hi, I tried to search for the answer to this question, but couldn't really find what I needed. I have a Zapco C2K 9.0 2 Ohm version. 2 ch amp. I want to run 1 BTL 18' sub. so my question is should I get the dual 1 Ohm and run each coil to a separate channel , or dual 1 ohm coils in series to 2 ohm amp bridged as 1 channel, also what would be the pluses, minuses of running 2 1000w amps to the same sub on different coils? which will work better? sorry for the noob question. and thanks

here are a few pics of the beggining phases of my project... there will be several more in the future.

lol have yall missed me any? (i know, you havent) anyways, im getting closer to finishing my setup in the mini...i promise ill listen this time, i just wanna hear your suggestions on crossovers for my tweets. the amp will be a MTX TA7402. 300w x 2 @ 1 ohm. will be 16 tweeters, 8 per channel, in parallel, so each channel will be running 8 tweets @ 1 ohm, (300/8 = roughly 38w per tweet) this amp has a pretty nice HPF built in from what it looks like too. so, instead of running one of those 3.3uF caps for a "crossover" what do you suggest? i know i should keep the slope high, around like 36dB or something right (so they dont blow?) what should i cross them at though, and w…