Thread: subwoofer box

i am looking into making my own sub box and i want to put it in the back right Corner of the trunk. i was wondering if any one has done this?

i want it to be like this. just wondering if anyone knows how to make it

a cap? and y remove the 6x9's

i have always hared it was good to have a cap

alright i see now

A cap is very good to have, especially if you're running a high powered system. A capacitor works by using it's stored energy to supply the amp. Say you have a bunch of really fast, heavy notes, it's gonna take a lot of energy to supply that amp. Instead of pulling it all form your car's battery, it takes it from the capacitor making it easier on the battery. Then all the battery has to do is slowly "refill" the capacitor.

Originally Posted by grand2000prixgtp

i want it to be like this. just wondering if anyone knows how to make it

Ummmmmm, buy a 6x9 for that size box

Originally Posted by kfish

caps are pointless. they drain in one good bass note, and then have to recharge. so your actually using more power because the battery now has to supply the amp and recharge the cap. its a worthless piece of equipment. and as far as the box, your not going to be able to make a box to hold that 15 and have it where you want. that sub needs about 3 cubic feet. just build a box that takes up the whole trunk. you bought a big sub...use it. if you want that small of a box you might as well have bought a 10".

no, that doesn't make any sense. You're saying that the battery has to work double time but it doesn't. The capacitor's job is to LIGHTEN the load on the battery. It's better for the capacitor to take a big hit than your battery.

I will say that I've heard good amps don't need a cap because wrms aren't demanding on the battery. Just keep that in mind, basically a capacitor is a cheap alternative to a second battery which I have seen run in high power systems. It also take a lot of power to really suck on your battery juice.

Not trying to argue, but a capacitor is useful for something such as a long bass note, but otherwise not too useful (mainly just more wiring, but do have a volt meter).The battery then has to recharge the cap before giving power to the amp. Adding a second battery will increase the amount of time you can listen to the audio system with the engine off(party party). When the engine is running, the secondary battery is an additional "load" for the alternator to charge. So an upgrade to a larger alternator should be considered.
-As stated above your best bet is to pick up some MDF wood, measure it, and hope you took wood shop in highschool...

Originally Posted by pizzi22

Not trying to argue, but a capacitor is useful for something such as a long bass note, but otherwise not too useful (mainly just more wiring, but do have a volt meter).The battery then has to recharge the cap before giving power to the amp. Adding a second battery will increase the amount of time you can listen to the audio system with the engine off(party party). When the engine is running, the secondary battery is an additional "load" for the alternator to charge. So an upgrade to a larger alternator should be considered.
-As stated above your best bet is to pick up some MDF wood, measure it, and hope you took wood shop in highschool...

Exactly what i was getting at. I mis-spoke earlier, for a quick fast note, a cap would be drained instantly and then, yes, you will be over-running your battery. With a long steady note (not very heavy) it's not gonna hurt to have a Cap. Honestly, my advice with that would be to wait on it, see if it affects your accessories, and if you need to go ahead and wire one in parallel with the amp (with its own, separate ground of course). Wow, sorry for the thread jack.

Originally Posted by ZR1Vette09

I will say that I've heard good amps don't need a cap because wrms aren't demanding on the battery. Just keep that in mind, basically a capacitor is a cheap alternative to a second battery which I have seen run in high power systems. It also take a lot of power to really suck on your battery juice.

If I was still into stereos I would use a second battery like you said. It's easier on your alternator. Or use a higher power alternator or both. Caps are pointless IMO. I left the stereo crowd around '03 when I got into operating heavy equipment, and the last thing I want to hear is noise from speakers. Use a DEEP CYCLE BATTERY and a high power alternator if you want max power flow. Hide the battery if you don't want to see it due to its ugly appearance.

if you run a second battery then you definitely need a high output alternator. But why are we talking about this, my friend that was running 2 batteries was rated at 4000 real watts, he NEEDED that extra battery lol