sub box questions

[daren_p]

I would say more then likely that is a dual voice coil sub & yes you have to hook up both sides. Make sure you check the resistance of each coil and wire them up for the correct ohm load depending on the amp you choose to run. As for enclosure I prefer sealed over ported, I like tight bass & if your running a descent sub you can still get lots of bass out of a selaed enclosure plus like has been said a sealed enclosure will be smaller for the same sub. As for base how much do you really want? I origionally had 2 12's in my car but I would rather have a quicker car then all that extra weight. If you check my profile I have some pics of my fiberglass enclosure. It works great for me, still have a useable trunk & is much lighter then mdf. Even with my one 12 there is more then enough bass for me. When its turned up I can rattle all the panels in the car & you can see the hatch glass moving & the rear wiper jumping off the window from behind the car. If the sub is still good & it is an old w3 they were a descent sub at the time, it should give you lots of base. I would go sealed with that as the older JL's seemed pretty loose and boomy already. If you tested the sub without an enclosure or an improper sized then yes it would sound like crap, it amazing how much of a difference on output a proper sized enclosure makes. I run a sony mobile es amp that is 430 watts rms (800 or 900 watts peak which is a useless number anyways)

 

[Attack Eagle]

ok so i just started building my sub box and all i need to do is put it together. should i put a spacer in between each sub? would it sound better? i had a box for 2 12's but since im getting 3 12's i had to make my own. the one i had had a spacer between the two subs.

Yes, no shared airspace between the 3 subs.

NOt only does it sound better IMO, it also enables you to pull and send a single sub for replacement if needed with out having to not use you box for however long replacement takes.

 

[daren_p]

Yes, no shared airspace between the 3 subs.

NOt only does it sound better IMO, it also enables you to pull and send a single sub for replacement if needed with out having to not use you box for however long replacement takes.

I was told from an audio shop that there was no need to divide the subs if they were running off the same amp but if they were on different amps they should be divided, don't know how true that is but it would seem to make abit of sense.

 

[napkinthief]

shops that cut corners always seem to have a bad reputation

1. Each Sub should have its own enclosure.
2. Enclosures can be connected.
3. Amplifiers should not be attached to the enclosures.
4. Number of amplifiers should not matter the size of the box.

 

[poopfaceone]

what's the downside of screwing your amp into the enclosure (I have a bandpass)?