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and neither of you can do a google search. http://en.wikipedia.org/wiki/Audio_crossover#Passive there's even diagrams.

never seen someone try to piss money away like this... honestly you got to be a troll you're install is a fucking mess. fix it before you buy another damn thing.

you're not looking for sound quality you're looking for output. no one on the planet installs 18s for the sake of SQ.

you're right a 10 and 18 CAN have the same frequencies response. the 18 is just capable of more output.

you got a giant peak in the low end due to the subwoofer/enclosure and the acoustics of a vehicle. either EQ out the peak or look to gain output from midbass (because that upper range that you're lacking is approaching midbass frequencies.

the point im making is that you dont need the output if you're looking for a balanced system. what you're trying to achieve with 18" Q's wont result in anything different then the sp4 you had before.

After over 100, yes you read that right, 100 emails/facebook messages, numerous times asking over and over again to respond with a simple answer of what he would like the order changed to, I get a paper from the Better Business Bureau complaining we did not answer the phone. Mind you, I told him over and over that Mark was away at SBN and that I could answer every question via email no problem, but yet he continued to keep calling in and complaining that no one was answering the phone. But, the long nonsensical emails just kept raining in, from Mike, his son, their friend and some shop that was helping him out. This was with out a doubt, a perfect example of the customer is not always right. Never have I ever poured out so much customer service to one order for one speaker for one customer, absolutely unreal. Then has the audacity to do a charge back and a BBB claim.

Ported tuned in the high 30s is probably what you need. And honestly subs shouldn't be playing up to 70. I would upgrade my front stage before making a definite answer

If you aren't happy with the transient response from the xcon (which by the way is due to the box). Do NOT buy the Magnetar. You won't be happy.

Thank you.

smart guy forsure he has helped me a ton over the past year

Alton needs to be bumped up to the tech team.

You have to attach it better to the trunk. I would suggest unbolting it, then adding like, some kind of soft weather proofing in that joint between the spoiler mounting feet and the trunk.

Let me start off by saying that the sub in question is in non functioning condition right now, so I can't make any changes or adjustments to see what helps. I am trying to decide on a recone, or another sub choice. I had the sub (D1 coils) running at 2 ohm on a BRZ2400.1D in a 3.2ft^3 net sealed enclosure. 1/0 wire from front battery to a XS D3100 in the rear and then to the amp. I had the LPF set at 80hz with 24db slope and subsonic all the way down on the amp (15hz I think). I have a fairly eclectic music choice, but listen to rock and hip-hop mostly. This thing would hit the lows(40-30hz) nicely. I had a slight tickle in my throat and could visually see my door panels moving with doors closed and windows up. My concern is that it didn't have much power in the higher(60-70 hz) range. When listening to rock, kick drums just didn't have the punch I was expecting. Also, with double bass or anything with any sort of speed or quick transients it just fell apart and ran everything together. A quick example would be Hearts Burst Into Fire by Bullet For My Valentine. There is some double bass work in that song that the xcon simply could not "keep up" with. I also had it in a 2ft^3 sealed box and it wasn't much different. Battery voltage would get down to low 13s when letting it shake things up. Keeping the power and settings the same, the xcon was swapped out for two mtx thunder ported enclosures from my cousins truck. 3 mtx 10" 5500 in each box. That would not go as low as the xcon, but with the rock music it never skipped a beat and double bass was well separated and defined. The chest punching power was there as well, I'm sure cone area played a part in this one.

It's at 80hz, not sure of the slope right now.

That's what I thought at first, but the boost knob on the amp was zeroed and the hu was zeroed as well on the sub level and with a flat eq.

Not sure why this comment deserved a negative rep, but whatever. Your impression was wrong. A better box will give a better response. I think I misused the term transient trying to describe what was going on here. Sorry for that. It seemed like the response peaked at about 35-40hz and dropped off fast anything above about 50hz. Anything with any sort of speed or staccato to it just kind of ran together. You could tell there were separate notes or kick bass beats, but there wasn't much of any separation to them.

I have a order from SDS due to arrive on Wednesday so I'll be addressing my doors/mids fairly soon.

A larger ported box was soon to come, but now that the sub needs a recone I was just looking for some insight to help lead me in the right direction. The sealed box seems to be the problem in this equation, along with my judgement to run it that way.

I was under the impression that a sealed enclosure would give more accurate response. Many people have said that the xcon does great sealed.

That was my next step, but I fried it. I am trying to decide on sending it in for a recone and waiting to get it back so I can do that, or swipe that Magnetar from Sencheezy.

Still trying to call with phone to do what office asked always busy guess only one line. Day 2 still trying to call. Mark was out of the office at SBN for over a week, so the calls are flooding in all day long. I am answering every email question.

first!

you guys should have a build off.. let the forum vote for the winner, and the winner gets a couple weeks off.

look around craigslist before you buy anything new. also you dont have to run max rms. you should of just ran the 1200 to them for awhile and broke them in and then got ya a bigger amp

yeah its safe just run your amp half gain for a bit.. you will be fine

here are some other ideas/questions. but i think the problem is enclosure related. you sure the xover setting is accurate, markings on the amp are usually off. what about the front stage? have you tried moving the box around the cargo area? have you tried changing the phase (if the amp has a setting?) or swapping the polarity? I set the lpf on the amp all the way up and used the lpf on the hu to take care of crossover duty.Front stage is ID XS65. Awaiting the sds order to maximize their potential. Not much mid bass right now. I moved the box around and faced it different ways and ended up with it up against the back seat(no third row) firing back toward the hatch door. Any other way and the output would drop significantly. Swapping polarity made very little difference, though I didn't play with the phase knob at all. The box was made of 3/4" mdf, all glue, no screws. No air leaks or rattles coming from the box. I'm thinking sealed isn't all it's cracked up to be. Though according to ebp on this sub ported>sealed. I also used your duct seal idea and am running my tweets up high in the door with grills off and the difference is pretty impressive. Gonna try a pillar a few inches above dash next week or so. I might need to start a build log or something the way this is going. Never done that before though.