platinum28

I know this a very amateur question but I got my stealth box hooked up at an audio store and it sounded great. I had to bring my truck in about a week later because my sub would cut off once in a while. The shop fixed the problem and said there was a loose wire internally in the box. Since I got my truck back it does not sound as loud as when I first got it and I have to turn the volume all the way up to get the satisfaction of the BASS.
Can I turn up the subs amp (thats he gain right?) and how much can I turn it up. JL custom made the box and the amp is JL too and is the proper amp for that sub. Any advice and sorry for the amateur question I just don't want to blow the woofer.

ibd2328

iTrader: (2)

What JL sub and amp is it?

Turning up the gain will make more power go to the subs, but unless your filters are set accordingly, you could easily blow the sub.

Telling us which exact amp and sub you have would be a good start.

platinum28

Its the JL 13TW5-3 and the amp JL mono block 600x1 @2ohm

ibd2328

iTrader: (2)

If this is the shallow mount 13" sub, its rated at 100-600 watts. However, the sub has an impedance of 3ohms. Your amp is stable down to, 2ohms which is fine. The resistance with max gain should put you quite a ways under the 600 mark.

Thus, turning up the gain should be fine... Assuming your LPF is set up right. What is it set on currently?

Also, I am hoping this is a sealed enclosure?

platinum28

Yes its the shallow mount sub in an sealed enclosure custom made by JL to fit under the backseat in F150 without imposing on function of seats etc.

What does LPF mean and where can I located this Im guessing its on the amp somewhere

ibd2328

iTrader: (2)

LPF=Low Pass Filter, its a built in crossover on Mono/Sub Amps.

Use this link to help tune your system..
http://www.crutchfield.com/S-Gyk5f2c...rs/tuning.html

platinum28

Looked and I couldn't find LPF.... I attached a pic of the exact amp I have

ibd2328

iTrader: (2)

The silver part on top of the amp comes off... under it, you will see the filters.

ibd2328

iTrader: (2)

Check out the other pics on crutchfields site of the top off and filters
http://www.crutchfield.com/S-s9EjXoW...ml#details-tab