Subwoofers / Speakers

My buddy Brandon got a pair of D2 15s installed yesterday. This morning he wired up his MA Audio MA5082HX amp up to them -- their 4000-watt Class A/B amp from two model years ago. 2 ohms is not the optimal load for the amp, but no matter... with -32dB earplugs in my ears are still tingling. We drove up to a local stereo shop to use their meter, which is horribly uncalibrated so don't use these numbers to compare to anything... his car pulled a 148 dB score. Get this... the shop has a van with no less than 28 Memphis Depth Charge 10" subs in a wall and a Memphis MOJO amp and that only pulls a 152 dB score. So 4 dB off 28 10s with a pair of 15s in a stock Explorer , no wall…

Well I set off an Audi TT's car alarm with it yesterday. Right now the 8 is fighting through two layers of sound deadened steel to get sound into the cab, but it sounds great. For an 8, it goes incredibly low. The only things it doesn't pick up very well are subsonics, but down to 20 Hz is flat in my car. I'm doing my best to take care of it even though my amp could fry it in a second, but other than worrying about blowing it when I have it turned up the woofer is performing great. SQ-wise, the 8 disappears, which is great. The 8 will be KILLER for a two-way horn setup. That's literally all that would be necessary, a horn and our 8 per side.

Now, for a little explaining. We're going to have our logo at the top across the back (where your sholderblades are), which is what "SI" is in the poll above. The first option listed above is to put the text "Subwoofers" under our logo and then start the phrase below that. The second option is just for our logo and then the phrase under that. The phrase that we've decided on will take up the back of the shirt, it's not just going to be a little line on the back. So anyway, put "Subwoofers" under our logo or no? I'm voting no, but the VP votes yes, so the rest is up to you guys.

Anybody bought these? And with what other brands can they compete? E.g. Focal, CDT, Rainbow, etc. Secondly; will they play good on a SoundStream Tarantula 500/4 (4x125W RMS @ 4 Ohms)? Thnx.

Not my install. I finally made my decision. Stopped draggin' my feet and sent Nick some money. I have a Magnum and a set of 302's on their way soon. I must say that Nick is very patient and awesome to deal with. Of course you guys know this already. Now I just need to get the Magnum hooked up to my PG t1200.1 and the 302's hooked to my PG t500.2. Hopefully this will be a system that I can live with for a long time. Done playing the what do I want in there today game, if you know what I mean.

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Does anybody know if the generic grills they sell at Parts Express will work for the 302's? If not, do you have any suggestions on grills for these?

Dude i thought i was one of the few, and the proud who have si products in my car. But i was wrong, i was in someone elses car and saw a black two door car, i think it was a sunfire. but anywho, who are yah and what do you have in the trunk. also where did you get your sticker? i like yours better than mine. B)

does anyone know what the projected date that the subs will be sent out. i pre-ordered a 15" and am so anxious to get it.

Ok heres the story, i have a 1994 grand prix. Right now ive got 2 infinity woofers @700 watts total power, and right now im the loudest system in my city (yeah not many of us are into car audio) but yesterday a kid from school walks up to me and tells me hes getting 2 audiobahn competition subs for $600 bucks each and hes going to run 1600 watts to it. Now i tried explaining to him that audiobahn flat out sucks but wouldnt listen to me. So for braggoing rights of course i have to get a louder system than that (my infinities are loud but not THAT loud). The big question is should i need just 1 15" D2 or should i go with 2? i am going for exreme spl here b.t.w.

Hmmmm, i want to get the most of my system. I love the really really deep ground shaking bass. My current set up is 2 Magnum D2 12s running off a Tsunami 1800T. My enclosure is a lil bit more than 2 cu ft each and its tuned @ around 29-30hz. It gives me lots of the ground shaking bass i love, but i thought i would be hitting higher numbers than what im hitting. Last time i had a chance with a mic i hit 142.3 I thought that was really good, because i was thinking it was the termlab. It was actually an AC. I just found that out. Now im disappointed. I see many people on the boards who have a similar set up, but are hitting way higher numbers. I just finished a competiti…

I love my 67 mustang coupe - absolutely no room in the rear seat for passengers (just too damn small), so that's where the groceries go now that my trunk is filled with SI goodness In case you were wondering, that's a Hifonics Brutus BX1000D amp for each magnum - and then there's two Zapco Reference 350 amps (one's shown, one's hidden) for the double set of SI 307's I have in the kick pods up front, and sunk into the package tray in the rear.

SPL Tuning In most vehicles resonant frequencies have little effect. It tends to be the general transfer function which dominates. Your best bet is to try to map this by measuring the response of a box in and out of the car on a meter. Getting 8-10 dB extra isn't easy, and without a meter it would be very difficult indeed as testing can't be done as effectively. If you can find the right note to play with the current setup (I'm assuming you're not sure of this at the moment) you can typically gain about 2dB, it can be frightening how fast it drops off from the peak value in some cases. With your current box, if possible experiment with aiming it in different directions at…

ok heres the deal guys. i have 4.43cu.ft if i fire towards the rear,and 5.23cu,ft if i fire up. i have a concept cc-d2400a for power.the car is a 1996 mitsubishi eclipse hatchback.i am selling ma dd9515 this weekend and am in the market for new subs for my car. i've found a couple of subs that i like but i wanted to get you guys opinions 1st. (1)-2 punch hx2 12's (2)-2 punch hx2 15's (3)-2 kicker comp vr 12's (4)-2 kicker comp vr 15's (5)-2 kicker L7 10's (6)-2 kicker L7 12's and theres a bunch more that i didn't feel like listing. what would you guys pick from my list?this is just a tossup for now,just to kind of give me a guess of what i want. thanks guys. charles

just wanna know, im using no subsonic and the box is currently tuned to 30hz(until the new bandpass box is built) and with about 1k+ it seems ok, i've never had the guts to turn it up too high though, theres about 1.5kw+ on tap ps. is it true that they are run in with 2.5k in free air before they leave the factory?

12's and 15's are in stock folks...now is all this crazy talk of ordering speakers gonna still happen!?!?!?

just curious how the progress on the 8 incher is comming?

What is the frequency response of the D2? I was thinking about using the Koda 6 midbass which starts at 200Hz and wanted to know where the D2 topped out.

this is for my 96' eclipse hatchback. i have a concept cc-d2400a for power.would you pick a dd 9515d or 2 a-bahn immortal 12's strictly for street beating. if the immortals are bad,then i was thinking of maybe a pair of 10" L7's or somthing of that sort. thanks for the help guys. charles

Dont wanna email Nick, and Im sure some other people are wondering as well. Any good news on the subs? Anything to keep us goin on Hows production coming?

as my sig says...i did run two 15" treo ss's off a single memphis 1000d in a dodge ram..... now i don't have the dodge..the memphis is sold and my treo's are sitting in the garage.... here is what i am wanting to do....two 15's, either 3000wrms or 4800wrms to the subs (depends on what amps i decide to go with), iggy altenator, 3 svr batts(one under hood, two for the sub amps) a 6.5 componet set and around 150 wrms for them.... now here is the reason for the post....... i am considering 2 15" memphis mojo max's...2 memphis 1500d's or mojo's...memphis sq componets and a memphis pr series amp for them(maybe a 4 channel so i can run a pair of m series 8's for mid bass..dunno)…

i remember a while abck david at re was like get a multi meter and it eh ohmage is like 100 or like 1000 that meant it was a burnt VC, thing is my SExxx says 0.. so idk i hope it mean it was a loose connection.

Can the Magnum D2 12's be used in a free-air install?

Hi guys, my first post. Anyways, I currently have 3x MB Quarts PW 302 subwoofers powered by a Rockford Fosgate 1501BD mono amp running at 1.3 Ohms stable. The problem is, I really don't like the sound quality / bass from the MB Quart subwoofers. Now I'm considering replacing them for 3x 12" SI D2 subwoofers. Will I be better off with those subwoofers? And are they better with bass and tight response in contrary to the MB Quart subwoofers? I mostly listen the following music: Techno, hardtrance, hardstyle and hardcore. Which all need a good low/deep bass but still very accurate and responsive. Help please. Thanks.

Ok so i got my tape measure went to the trunk and figured out my not quit max volume i could use for a box and came up wt 15.5cu^3 big ass trunk huh, and i was thinking about porting it to 46hz, but i would just stuff it for daily.. i was planning on 2 SX 15's....but ya neva know about subs these days.. i should put up hella numbers wt this setup :boink: