helotaxi

With multiple coils on the same sub, series and parallel don't make a difference at all.

Where abouts and how soon? I'd rather not go into what I do. I'm not one of "them" but I do have a pretty sensitive job. One day I'll go into it a bit but not now.

I like a lot of headroom, too. 100w per channel is plenty of headroom for me.

Yeah, I'm one of the guys you're doing security for. I volunteered to do a short notice deployment back in October but it got canx'd at the last moment. I spent the next 3 months in limbo about whether or not I was going to deploy and really didn't know for sure until 2 days before I left. I've been extended twice on this deployment so far. Of course with what I do, being home is really no different than being deployed, I've been fighting OEF and OIF continuously for the last 3 years without a break except for my deployments. At least over here it's tax free with all the other bennies. I should come home with close to $15k in the bank and that's after I bought my HU, Legatias, the stuff to get my SRT-4 back to stock, an Orion XTR amp (for the collection), 3xSundown 100.2, 2 digital cameras (one got lost while traveling around the AOR) and an iPod Nano. I also signed my bonus over here and paid my motorcycles off. If I play it out right, I should be able to pull 9 months out of this year tax-free. Now if only I could get my wife's income to be taxs-free as well...

I'm going to be running 3 2-channels. I'd run a 6 channel if there was one that suited my needs. If you can find an older Phoenix Gold XS6600 it is a staggered power 6 channel. PPI made 2 a while back that were really good as well.

For us old heads, we knew immediately that he was in fact talking about IB when he said "free air." The terms used to be used pretty much interchangeably in the car audio realm.

Woven cloth sucks for going around curves if you're using a heavy enough cloth to build up any thickness. Trying to do the whole thing inside the trunk will be VERY difficult because at some point you have to enclose it meaning that you have to finish working from inside the sub cutouts. Sanding it will be a real turd, and it will have to be perfectly smmoth to get a carbon fiber finish layer on it. Not to mention that if you want the carbon fiber layer to come out right, you have to vacuum bag it which can't be done inside the trunk. It would look cool but it would be basically impossible to pull off.

300w on an 8 is pretty much all you can expect one to handle. The cone is so small that it doens't benefit from enclosure loading nearly as much as a larger sub can, so while there are 8s out there that might be able to thermally handle that kind of power, mechanically they'll get beat to death in a sealed box. If SQ is your focus, cross off the MA Audio and RE subs. They are not in the league of the others. I'm not sure what Eclipse model you're looking at but they used TC Sounds (Audiopulse) as their OEM for their high end subs, as did Sound Splinter. The SS subs are not availiable for the foreseeable future. Most people on here hold the owner of eD in less than low regard, but I won't get inolved the that bit of e-drama. No experience with the Treo subs but I've never heard anything bad about them. DD can get loud, not sure how they'll do sealed in that airspace. ID isn't going to like that kind of power. What are the dimensions of the space you have to work with. If you could find 2 subs that could work in that kind of volume, would you have room to mount them? What vehicle? What mounting location? You might be surprised where you can fit subs. Giving us some of those answers might allow some of us to come up with some ideas that you haven't thought of to go with something different or bigger.

So what if Hifonics are overrated? I fail to see how putting out a few watts shy of advertised bench specs in the real world makes it a bad amp when it is still a really good deal for the amount of power that it DOES put out. Tell me which amp is a better deal: one that is rated at 200W and does 500w and costs $300 or one that is rated at 600w does 500w and costs $275? Way too many poeple get way to wrapped up in the rated vs actual power thing rather than the actual power vs price thing.

I was supposed to have been home a month ago...oddly I have another month and a half to go.

What whole system amps does your shop carry? That could have something to do with it.

Not much of a step really. Been running a '03 XXX 12 for quite some time. The pair of BMs should give me that kind of output with similar sound in a smaller box. Smaller box than the 8s want as well. Got a great concept on how to integrate the BMs into the interior/stealth install. Also gives me better options for amp mounting. The more I think about it the better I like the idea. Hopefully they'll be ready by the time I get home, or soon thereafter. Heck I might even be able to fit a pair of the new Mags in the spot I'm thinging about.

Well yeah, except for those...that's why you use egg crate foam and deflex pads inside your sealed enclosures though...and double up the MDF on all walls with deadener between...and need twisted pair speaker wire...

A sealed enclosure has a shallower roll-off than ported but it usually begins to roll off at a higher frequency. The result is that at really low freqs, the sealed box will have more output. You also can't make the assumption that a ported box is louder than a sealed one. For a given range of freqs it may be louder, but the reference level will be the same for both and once you get to the really low freqs where the sub is just fluttering in the ported box, the sealed box will be louder and actually under control.

Was 113 here today...

To keep the footprint small it would almost have to be a stacked design with the two boards on on top the other with a heatsink all the way around. Basically 2 amps with a shared power/ground terminal back to back (rather than end to end) in a tall heastsink. I think that you guys would be surprised at how well the 5 channel amps sell with the general consumer rather than the hobbiest crowd. You guys have to realize that we represent a TINY percentage of the aftermarket audio consumer base. The majority are more like my wife who want simple and better than stock but aren't willing to go to extremes to get it.

There's a lot more to that unit than a crossover and it's not what you need.

Unless your goal is to be a loud as possible on the meter and you're trying for every last 10th, the shape isn't very important at all. If you're talking a sealed enclosure, the shape doesn't matter either.

Modern fighters don't smoke. Even when lighting up the afterburner. As soon as the first stage of the AB starts dumping fuel into the exhaust, the ignitors have it lit. Even at an air show (unless it is a specific smoke generator like the T-birds and Blue Angels use) there is no smoke on a current gen fighter. The jet cars at the drags smoke because they use old generation engines and you are watching them start the engine at the end of the track. It was most likely an older fighter. The F-4 held the time to climb record for years and it's a smoky bastard.

If you're bending on a circular profile all you have to do is figure the arc length. This is going to be 1/4 of the circumfrence of a circle with the same radius as your bend for a 90 deg bend.

Kenwood Excelon DNX-5120 About $630 shipped on eBay.

Yeah, I was thinking more along the lines of a pair of BMs wired to 1 ohm with the gain dialed WAY down. I don't need a lot of output. If I were to go with Mags, 2 ohms would be the wiring of choice. No reason to wire to 0.5 ohms especially if I'm trying to limit power and electrical drain.

Yep, the old WinISD referenced true Mach. Modern jets don't smoke, makes it too easy for the enemy to spot you. Depending on the time frame you're talking about, they could have been F-4s which smoke like crazy and won't get off the ground with less than full power.

So I modeled up the Orphan 8s and they want a TINY box. Around 1.5 cf for 4 of them gave a system Q of .505! .707 was smaller than the smallest box that could hold 4. The Daytons want a much bigger box, but have the potential to absolutely KILL the Orphans down really low (unless the Orphans just really don't model right). The mention of the new Mags above got me thinking, though. I'm not in a rush here, so waiting isn't much of an issue. I'm probably going to hold off on deciding until the Mags are on the market and probably the BMs as well. Building a pair of BMs into the rear wall of the truck with grilles wrapped in factory matched cloth to look like the jumpseat back pads just sounds too cool. If you look at the rear area of the truck on the Nissan website you can just picture it all in there... The question now becomes how low can I dial down the power on the 1500D...

Time is a factor in that there is a deadline, but that deadline is still almost two months out. Probably won't have the truck until 15 Aug (I'll pick up the MDF for the build on the way home from the dealership:D). Figure two days to deaden the cab. Another 2 days to build the pods for the mids and tweets. A day to wire under the hood and run power wire, install the deck and build the mounting rings for the TB 6x9s (they are not the standard 6x9 size but I'm 99% sure I can get them to fit with a spacer). After that a week to build the sub box and amp rack. 3rd week of August is when I have to have the drivers by pretty much. I'd need to order the Orphans in the next couple hours if I go that route, which rushes things a bit more than I want to, but if I order 4 and the RL-is later become available...