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» Termpro Audio Forum » Installer's Corner » Advanced Topics » down is spl again not up

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Iggster
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Member # 267

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HI once again, ok, ill start with what i have i have a 92 pontiac sunbird(2door) with 2 12inch jbl gt(dual voic coil) sub woofers in a four foot custom built ported box with the 4inch wide 12inch long ports and subs facing 4inches away from the trunk. I take out my back seat for the competions. I have an Mtx RT 2400x amp about 375 to each sub. I have a 1 farrad lightning cap, and a kenwood kdc8011 radio. well i just recintley got this radio and am hitting high 142's i used to hit 143's easy, and my high is 145...my old radio was the kenwood kdc3001(not 4-volt like the new one). Why have i gone down my last 2 events, i even went out and got a 105 amp alternator. Please, someone help me...i should be hittin 145's instead im doin 142's the past 2 shows. Also, i was told to get a line driver that would help. Please any suggestions on where to set my amp(hi freq or gain, etc..) and postion my subs at. Thanx Iggy

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If you aint down with the iggster and his sounds i got 2 words for ya JBL Bass :o)~


Posts: 28803 | From: Tinley Park, Illinoize | Registered: Jul 1999  | Report this post to a Moderator
ShadowStar
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Member # 78

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Well, I would put a scope on the head unit outputs and see if they really are 4 volt, because sometimes head units (or anything electrical) can be defective even after testing..

Also- Did you readjust your gains after putting in the new head unit? If you haven't, do it.

Tell me if it works.

Also, some times the mic is low... A line driver could be a waste of money if you have a decent 4 v deck.

ShadowStar

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Computers are a lot like air conditioners.. Open Windows and they become useless..

The day Microsoft makes something that doesn't suck is the day they make vacuums.


Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999  |  IP: Logged | Report this post to a Moderator
   

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