Amplifier gain, boost, low pass settings.?

Question

i turned up my front speakers until distortion and then lowered the volume a few levels. (i dont have my new 6x9s yet, so no back speakers.) After that, I kept the volume up and started turning up my gain levels and set my low pass filter around 100hz.

My head unit has a 4v preout and built in bass blockers for the front and back speakers, which i have set at 120hz in front and 100 hz for th 6 x9s when i get them.

I have a 200 rms blaupunkt ampt and a 200 rms blaupunkt 12" ported tube sub. When I set my gain at 4v (about 2/5 of the way up), and my bass boost to 3db, (about 2/5 of the way up) it doesnt seem like its putting out alot of sound, its puts out some, but nothing like i expected. I dont want the amp to clip, but I thought this setup would blow away my old bazooka 8"sub tube that only handled 100 rms and i had a 200 rms amp on that one.

I am running 4 gauge from the battery to a distribution box (and then 8 gauge from there to the amp.

I have 12 gauge speaker wire

Answer 1

One thing I would like to point out is how you set the gain.  If you set it by using the numbers on the amp then I would definetly recommend resetting it.  Doing it that way is not going to be accurate at all.

Use the links below to set the gain more accurately.

http://mobile.jlaudio.com/support_pages....

http://www.bcae1.com/gaincon2.htm

Everything else looks really good.  I don't know why you are not getting a lot from your setup.  The only thing I can really think from seeing this information is what enclosure you are using.  Do you know the specs on the enclosure?  If it is in an enclosure not suited for the sub or if it is built to a certain type of sound you are not going to be getting the sound you want from your sub.

Good Luck!!!