Question about Jensen LXA300 Car Audio Amplifier

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No low bass

I have two JL Audio 12's in my 2004 Yukon with a LXA300 Jensen amp. I am having trouble geting low bass I've played with my EQ but my speakers bottom out when low freq. hits? What causes speakers to bottom out?

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Get a bigger amp. or smaller subs!!!!

Posted on Mar 19, 2008

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What type of box are you using and what size? A sealed sub-box will give you more hit and more bottom end but drops off on higher frequencies. A ported box is much more efficient and has less drop off at different frequencies but is much larger, but with a Yukon you probably don't have to worry about the size of the box.

Posted on Mar 05, 2008

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Check the wiring of the woofers. If one speaker is wired improperly, it can cause the loss of bass and will make the woofers bottom out easily. Check inside the enclosure at the terminals and at the speaker.

Posted on Oct 29, 2007

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Posted on Jan 02, 2017

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I cant get my jl audio w6 10s to give off much bass with the jl audio 500/1 amp

here is a manual for your subwoofers:

use the wiring diagram for 1.5? (1.5ohm) with 2 speakers. the diagram for 3 speakers will not work, because it would bring the load down to 1 ohm, and the amp cannot go below 1.5 ohm.

to set up the amp:

under "preamp output section", on the "output mode" switch, select "amp filter"

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on the filters, youll prolly want the cutoff filter around 100hz @ 24db slope. start with the infrasonic filters off, but, if you do get into them, try centering between 30 and 60hz on either, and, possibly dropping the cutoff filter to 80hz.

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No problem just need advice

if you use for bass need to adjust to a 120Hz in the amp & eq

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Want too get best low bass i can from this amp

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1. set the amp LP filter frequency at about 80hz and mode/slope to 24db.
2. set the amp gain as recommended in the manual.
3. set the subsonic to on and to about 25hz
4. ste the bass eq to off!
5. set the input voltage to low and signal sensing to off
6. Fine tune by ear.

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Should I use this Jensen LXA300 AMP to power my DS930 kicker 6x9's

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1 Answer

Amp settings

It's going to be mainly "what sounds best", but I'll give you a start.
  • Set the gain to 50%.
  • Set the LP filter to 12db at about 80Hz.
  • Set the infrasonic filter to ON and at about 20Hz.
  • Set the Bass EQ to ON, Q to 0.7, center freq to 40Hz, and boost to about 5dB.
The other settings are going to be based on how the system is connected to the head unit.

Mar 22, 2008 | Jl Audio 500/1 Car Audio Amplifier

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If this occurs with the head unit plugged directly into the amp (no signal processors inline, you probably have open shields on the head unit.

To check the shield ground, disconnect all RCA cables from the head unit and measure the resistance between the RCA shield on the head unit and the case of the head unit. It should read ~0 ohms.

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Jensen LXA300 Amp. need to known specifications of electron. part

If you remove the clamp, there will be a part number on it. Post the numbers on the transistor and we'll go from there.

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