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Problem solved. Second battery reads 10.6v by itself. 🤦‍♂️ Was pulling amperage from the other 2 batteries.

I have 3 batts paralleled together. 1 under the hood, 2 in the trunk. Whether I use a charger or have the car running, the multimeter shows over 14v for the battery under the hood, but like 13.x for the batts in the trunk. The battery charger I have on boost mode, the battery under the hood...

probably got the gain turned waaay up. Also remember this is just a 2 ohm stable amp. Make sure your subs are wired for a 2 ohm load on the amp. Their website says it is capable of 650watts rms at 2 ohms, which may be truthful, I don't know, power acoustik is a known liar about their power...

need more information. Go into detail of how it's blowing a fuse, like under what conditions? While playing? As soon as you put in the fuse? Something else?

I dont know. Ask Sundown why their sa10's model so peaky on winisd. Maybe they like it that way. 🤷‍♂️

I used a sealed setup as a reference point. Compared to that, yes the ported box might be too big for 4 sa10's. However, I'm using a Ql factor of 1000, which means the box is completely lossless and doesnt leak air, which makes the predicted frequency response look very peaky. Tough call...

i put the parameters in winisd. Actually, the box may be too big. 3.7cu/ft net with a 7x6.25 port dimension which equals 43.75in/sq. It is 22.25in long tuned to 33.95hz. compared to 4 sa10's in a 3.7cu/ft sealed box, the ported box is VERY peaky. At around 35hz you have well over 30-40ms group...

I think with high power handling subs, cast baskets are used to avoid "rippling" the basket at resonance frequencies, which can cause misalignment of the coil and motor slightly. I dont know how that affect the woofers though. I've never heard of a motor twisting so bad that the coil started to...

Yes they use voltage regulators. I dont know wtf is wrong with Ford alternators. When they go out, they do so in a weird fashion. I had a 2000 expo that had similar problems with the alternator. I had a major failure elsewhere in the suv and so it sat on the drive way for 4 months. Tried to...

looks like a bad voltage regulator. It aint supposed to be jumping around from 10-16v.

I SOLVED THE PROBLEM!🔊🔊🎶🔥 The loose panel screws were the problem. I added 4 more screws where they were needed and it solved the problem. No more horrendous box rattle. I'm glad it's not the subs. I've had those subs for nearly ten years and they never failed. Audiotechnix for the win.(y) I...

400rms is underrated. I've been putting 500-600 each full tilt for a couple weeks at half ohm and the coils still look nice.

Talk about shakin' up the town.😄 How the fuk do you even explain this to somebody walking by?😂

I put three more screws into the baffle joining the two chambers together, thinking they may have come apart internally. It did not solve the problem. But then I realized, some of the screws that fasten the cover panel are free spinning. There's nothing for the screw to grip onto. I think the...

I should've when I had it out, but I was convinced it couldn't be the sub directly. The leak seems to be coming from the gasket. For all I know, that may have always been there but not been a problem. I'm trying to see if the box is the culprit, but I cant tell. The way the box was built, was...

15 inch I played the offending sub without the top cover, on low to moderate volume, and the offending sound was there. I didnt want to turn up hard but it was definitely coming from that sub in that particular box, that I can't find nothing wrong with except for the slight leakage. I had the...

Audiotechnix strato D2 1.85cu/ft net sealed per sub, 1.7cu/ft ported chamber. Each sub has it's own box. 1800wrms but pushin to about 2200-2300watts musically. I isolated which sub was making the noise and took out the sub in question.................there's NOTHING WRONG with it.💀☠💀☠👽 Coils...

Precision Power BK1800.1D Subs are dual 2 ohm, all paralleled to half ohm.

I did check the dust caps and they're glued on nicely. The more I think about it, the more I think it is a loose former/coil that ripped off the glue joint either on the spider or cone, because the sound gets REAL BAD at high volume, like the coil is slapping the bottom of the motor and the cone...

No they both read 1 ohm correctly. At full tilt there's some loss of output but the noise is overwhelming. Also no smell at all. I know for sure I was never overpowering the subs. 2.5in coils rated 500wrms each. They never saw more than 1000wrms together. They're in a 4th order bandpass box so...

nooooooo!!😭😭😭 I was ballin' down the street full tilt. Then, gradually, I started to hear this loud distortion. It was a "mechanical" sound, like it was clipping, but it wasn't. I came home and checked everything, amp is fine, box had loose screws and brackets. I tightened everything up and...

Oh hell yeah now you talkin. Motherfuckin BOSS. Get two and make sure they're STRAPPED. Each one with two alts STRAPPED, batteries STRAPPED, EVERYTHING STRAPPED on BOSS. We're not fukkin around.😈

I bet you're still going to do what the fk I just told you though, because you dont have a choice if you actually want to "hit harder". 🙃

You have a sub pushed all the way back in a trunk car, talking about replacing one 12 for another so it can "hit harder", without talking about increasing power, clearly you dont know what the fk you're doing. 💩 There's no difference between SQ or SPL subs in terms of output. It's all in the...

"I'm bord of my 12in sub and want it to hit harder. So I'm going to switch it out with another 12in sub."😕 Sounds like you need TWO TWELVES, not one. Or a much higher power handling 12 with a more powerful amp. 🤷‍♂️

it was a joke. Nothing wrong with some BOSS jokes every once in a while. The man already concluded the thread with his JL purchase.

Forget all this, you wanna hit 200db? BOSS Boss P80DVC Car Subwoofers - Sonic Electronix (y):)

With half inch MDF, it's like 4.27cu/ft internally not including sub and port displacement. That's like 3.5 to 3.8cu/ft after displacement. You may be able to do one low qts 15 that can take 2000watts. Small ported box = need more power......hoffmans iron law...😑

I do have big three and also have three car batteries with 2/0ga cable, etc. I'll just have to be easy on that volume knob. I might need a bigger alternator. It's just unfortunate that my subs I bought years ago were dual 2 ohm coils. You can only wire for 2 ohms or 0.5 ohm If you're wiring...

I was testing it earlier and it felt like the engine was going to shut off while driving. 😬 Amp didnt shut off, but it does get warmer faster. Anyway I'll just keep doing what my signature says. :poop: It's fun being part of the half ohm club. 😁

I wired it down to 0.5 ohm again. I'm fighting the protection circuit lol. 💩 I tuned it like it was wired at 1 ohm because I don't think the amp will let you draw more current than output voltage, based on my previous experiences. Got it set to around 2500 watts at max HU volume and the...

I mixed a trap beat and that christmas song 'silent night' together, then screwed it, bass boosted it, and added a non-stop 25hz note, then put in DJ drops like "Damn son where'd you find this?" 💩

Is it just me or does this program not model accurately? Based on my experiences and what I've seen across the internet, it seems like the frequency response that it shows is usually bloated for a given size, and that the box volume has to be much bigger in reality. Seems like the only box it...

That sub can take over 1000wrms? And it's a dual 4 ohm coil? Damn....I would put a 2000wrms @ 2 ohm amp on that.......but it will cost WAY higher than $150. I mean you could also take a 1000wrms amp and tune it with a -3db or -6db tone to get that most out of it, but again at 2 ohms, you may...

So I figured out some things today. I found if I was pullin 500watts at 25/35 volume, at 30/35 the amp was putting out 1860watts! It went from 32volts to 61volts on the DMM in just 5 notches up. The amp is rated 1000 at 2 ohms. No wonder it was getting hot as hell. So now I set it at 50volts at...

I too want to do a budget steve meade build lol. I cant do 4 18's on 20,000watts, but I can do one on 2,000.😄 I'm lookin at that CT Tropo 18 but it does NOT model well on winisd. The group delay in a 4th order is stupid bad. Even then in a sealed box you need like over 8cu/ft to have a flat...

Somebody in this thread asked 'what is the point of 4th order?' I run two 15's in a 4th order, over 7cu/ft net. The point is I feel that typical ported boxes are too bloated on the low end with the vehicles cabin gain and the upper end "attack" of transients are not strong/loud enough. So I'm...

I just bought the car a month ago too. Yeah I'm not trying to burn down my car.😓 Gonna have to settle for a 2 ohm load and 1000watts. I have the older one that is black with the copper writing/trim on it. 15lb beefy motherfker lol.😂 It's just frustrating that I have the electrical and I never...

I dont understand how so many others run their amps at half ohm even though they're not stable. Do they not have that kind of protection circuitry or do they just turn up and fight against the protection feature? .....Should I fight the protection circuitry?💩

realistically, 8 speakers. 2 4ohm speakers on each channel, giving you a 2ohm load on each channel. There are other ways. Series 4 pairs of 4ohm speakers, then parallel them down per channel for a 2ohm load. That's 8 speakers per channel for a total of 32 speakers. 😵