ds1919

hey daily! where you located? Lol I remember the mini truck dayz, I had a chevy luv dumped 5 1/2", could scrape mcdonalds litter down the street lol. That was when I lived in the east bay, san ramon, now I guess kinda expensive. hey send me the model of that 15" eclipse, I can see what size box/port works best. Right now I'm running four of the Sundown SA8v.2 D2s. I just took out my custom set of 15s. I might put them back in to see how they sound with my new amp once I install it (Ampire 2kWrms class A/B).

My box is 2 cu ft for four SA8v.2 D2 subs. thats the internal box volume. I also have a slot port, dimensions are 9.5" x 3" x 22". Its all the room I had left in the trunk to get the port to work. My tuning is around 36hz. A 1.0 cu ft box for all 4 subs wont sound good. For a temporary sub system, before I finished my box, I had two Skar vvx8 subs in a tiny box, about .3cu ft per sub. They sounded horrible in there, and the subs didnt look healthy at larger volumes. Specs are similar for both brands, and so they do need a minimum of .5 per sub. Figure .1 cf for the displacement of the magnet and stuffing, so you want internal box dimensions to be a minimum of .6-.7cf. And ported is a must, they love ported. Sealed doesnt sound good. You may want to look into perhaps building a setup with two 8s and one or two 12s. You;ll get the snap from the 8s as well as some lows, and also some truly deep lows with the 12. that has always been my favority setup, and I may switch to that.

Damian here, livin in the gold bearing foothills just east of Steve. Been a bass head since 1984. Yeah, almost 50 years old and I just cant stay away from this shit! My kids are almost deaf but thats okay lol....

lol. Before I built my box for my SA's, I put two in like a .5cf ported box. Thats like .25cf per sub. Sounded like shit. why? cause the design of the sub is Fs at low 40hz. Box tuning was like at 90hz. Couldnt handle hardly any power before they started flopping and popping. You wanna build a box that works with the woofer, and port tuned (if you want ported) properly. The smallest a v.2 should be in is a .5cf, and the largest is .75. You could go larger, and the box tuning will be deeper, but you may not get a needed spike in the low end, just a smooth deep rolloff with no punch. If you're board of stereo stuff, speaker repair should be fun. I've done a few in the past years ago, not lately, too impatient. But if you get real good at it, there is a job for you anywhere! There aint enough good speaker repair people anymore

enclosure design and tuning also depends on how the manufacturer designed the sub. Some design them for sq, some for spl. So their box recommendations reflect their design goals. I just finished (today) building a box for two SA-8v.2 D2's. I already had a nice well built box at 1.828125cf. Then I added in the 0.08 for sub displacement, 0.0625 for internal matting, 0.015 for wiring, and another 0.03125 for stuffing. That gave me a net volume of 0.7253125ft3 per sub. As jacob stated earlier, the larger the box, the longer the port length. For a 3" diam, I needed like 17", which I didnt have. So I had to go with a 1.55" diameter at 4.5" long. Its the correct tuning, but possibly restrictive due to the smaller diameter. However, upon listening to the setup, it sounds fricken awsome! I'm ditching my dual DVC 15" subs for these. More musical, goes just about as deep, doesnt take up as much space, super tight bass. I like them a lot. I'll be designing another box for 4 of these SA-8's. Oh yeah back to the subject. For these subs, it seems like Sundown's box recommendations are spot on for sq and spl. There's a whole lot of electrical (capacitance, inductance, frequency impedance, etc) and mechanical criteria that changes with box size and tuning (port lenght/diam). They've already figured it out, and I can say it does sound great.

hey chronic, what do you have your SA-8's tuned to? Is it ported enclosure or sealed? That first vid was waay cool!!

wow, what a difference. Its like taking a (choose you fave stock vehicle), and putting a 3" lift with one size larger tire, then a 8" lift with 44's! Same vehicle, but a lot different!! I like it! The V.2 looks like you could blow up the earth with it. I wonder, what will the v.3 look like????

NOT-disappointed now....

hey it looks like those 8s are real close to the center console. They dont hit at full excursion do they?? that would be badd. About your box, it looks quite adequate. Like that port work too. I have a hard time finishing up the cosmetics on my boxes too. Im too interested in the sound. All/most speaker builders and zic lovers dont ever finish their works lol. Crandis16, make sure that if you have all your subs in one box, you need to partition the 8s from the 15. In other words, make sure the 8s have their own enclosures, separate from the 15. Otherwise, the wave length(s) of the 15 can mess up/damage the 8s, either mechanically, or musically, or both. But I like using small subs with large ones, you get incredible SNAP, and the smooth deep LOWS. I love that setup 4sure.

well I dont think folks here really know what cars they sell out there in new zealand. American? French? New Zealand cars? You may be on your own with finding a car, or better, if the car finds you, then you design the system to the car....you could prolly save money by getting 2 DC subs.....

sometimes though when you get a higher amp alt, if its the same casing and stator, the windings are changed so that the alt produces more amps at high rpms (of the alt not the motor), but produces waay less at idle. DC power made my Jeep KJ 260a alt with a bigger stator and case, so even at idle it produces almost the max of my oem unit. Expensive tho, $600. So see if you can get specs on the stinger alt, like what amps it makes at what rpm of the alt (you have to do some math to determine engine rpm vs alt rpm). Another alternative is to have a local shop that repairs alternators/generators/small electrical motors etc rebuild yours to new specs. Usually about $200 or so

well put mrd6. Sheesh, anyways, hey Jacob, I just sent payment for 4 of the B stock D2 SA-8 subs, I gotta havem!! LoL I got too many subs already, but I am quite sure I will more than pleasantly pleased with these little mihos! Xmax in my face! ya know my dad once gave me some good solid advice about listening to extreme bass and loud music. Never did hear what he said tho, all I saw was his cigarette fly outta his foaming mouth lol. Thats when I knew that my investment paid off!!! ooh cant wait to get these!!!! Dainbramage comes in 8s

Self addressed, stampted email sent your way. Willing to do business, no trolling here. thanks!

10g? really? looks more like 8g..anyways, you should be able to squeeze two minutely trimmed 10g into a terminal. I did what you're doing with 8g. Yeah took hours to finish. Use the lineman pliers like he posted above, that will compress the wires to a very efficient small diameter and you should be able to get them in. If you're running a lot of power/low Fs/etc, then try to stay away from banana plugs and such, as they have a tendancy to get loose and create heat and start melting plastics around them, and also heat up the amp from resistance issues, not to mention possibly shorting out the terminals. I gave up on BJ's after too many times of cumming out lol.

depends on the amp, if it can run at 1. Mine runs way better on 1 than any other impedance fwiw.