Reply to thread

Message

<blockquote data-quote="coleworld" data-source="post: 7454816" data-attributes="member: 635690">My setup is a JL 12W3v3 in H.O. box (ported) with a JL 500/1...It sounds ok now how it is but I really want to get a change in the bass sound...right now it is too much low vibrations and not much thump if you know what i mean.When you hear a subwoofer (outside the car) you hear the thump of the bass...but outside my car all you hear is low vibrations and the car parts shaking. The JL 500/1 has a lot of knobs and I am pretty sure some of them helps me tune the sub to what I&#039;m talking about. What should I be looking for? Here is what the amp has right now and what I understand of them, please correct me if i am wrong:Infrasonic Filter -I have this set on and turned between 25-30, I read this was what you are supposed to do for a ported box. As i understand the infrasonic filter is like where the bass bottoms out, sort of like the opposite of a LP filter...correct me if I&#039;m wrong, but this means the bass shouldn&#039;t go below 25-30 Hz that I set it at.&quot;Q&quot; -I have no idea what this is for...I read that it controls the bandwidth of the bass but I don&#039;t understand what that means. I tried moving it all around but it didn&#039;t seem to help.Center Freq -If i understand this, it is the center Hz of where the bass plays from...basically what part is the loudest. I had mine set to 45, I turned it up to 55 and 70 but I couldn&#039;t really tell a big difference.Boost (dB)This is just a bass boost, I understand what this means. I tried with it on and off, it didn&#039;t change the sound of the bass just how loud it went.Then the LP filter, I know what this is also...I set it to 80. I tried playing with it a little but I think 80 is best.So which one of these knobs do I need to change to get more thump and less low vibrations? When my car drives by, everyone just hears a bunch of rattling...no bass. Thanks for the help</blockquote>

[QUOTE="coleworld, post: 7454816, member: 635690"] My setup is a JL 12W3v3 in H.O. box (ported) with a JL 500/1... It sounds ok now how it is but I really want to get a change in the bass sound...right now it is too much low vibrations and not much thump if you know what i mean. When you hear a subwoofer (outside the car) you hear the thump of the bass...but outside my car all you hear is low vibrations and the car parts shaking. The JL 500/1 has a lot of knobs and I am pretty sure some of them helps me tune the sub to what I'm talking about. What should I be looking for? Here is what the amp has right now and what I understand of them, please correct me if i am wrong: Infrasonic Filter - I have this set on and turned between 25-30, I read this was what you are supposed to do for a ported box. As i understand the infrasonic filter is like where the bass bottoms out, sort of like the opposite of a LP filter...correct me if I'm wrong, but this means the bass shouldn't go below 25-30 Hz that I set it at. "Q" - I have no idea what this is for...I read that it controls the bandwidth of the bass but I don't understand what that means. I tried moving it all around but it didn't seem to help. Center Freq - If i understand this, it is the center Hz of where the bass plays from...basically what part is the loudest. I had mine set to 45, I turned it up to 55 and 70 but I couldn't really tell a big difference. Boost (dB) This is just a bass boost, I understand what this means. I tried with it on and off, it didn't change the sound of the bass just how loud it went. Then the LP filter, I know what this is also...I set it to 80. I tried playing with it a little but I think 80 is best. So which one of these knobs do I need to change to get more thump and less low vibrations? When my car drives by, everyone just hears a bunch of rattling...no bass. Thanks for the help [/QUOTE]

Verification