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JL MX500/4 clipping

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Old 05-06-2018, 04:49 PM
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Default JL MX500/4 clipping

Last fall I Installed a JL MX500/4 bridged with DD AW 6.5 and AT28's I bought from Alex. I tuned it with a 1000hz -5db test tone, 3 bars from max, engine running, set to 28 Volts AC. When I get just over half volume usually the right, but sometimes the left speaker will cut out for a few seconds and then come back on a few more seconds later. Or if I turned it down a notch it will come back on. I assumed the amp was going into protect mode. Pulled the fairing and adjusted to 25 volts. same issue just a little higher up the volume bar. Finally turned all the way down to 20 volts AC and same issue. Again just a little higher up the volume bar.

I have 8 ga. positive and negative to the battery. I am 100% sure AVC is off. I am getting zero distortion. Why is this amp clipping so easily? Technically I should be able to have this set at 31.6 Volts, right?

What else can I check?? Thanks,
 
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Old 05-07-2018, 10:37 AM
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That amp bridged is only stable at 4 ohms. How do you have the speakers wired?
 
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Old 05-07-2018, 12:01 PM
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a few things can cause clipping....distortion, drop in voltage that can be caused by a bad ground, bad fuse, weak battery (yes even while running), or sometimes a crossed wire. I know some of the TXO's last year had the + - reversed on the color scheme. That could be it too.
 
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Old 05-07-2018, 04:48 PM
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Originally Posted by fmfpj View Post
That amp bridged is only stable at 4 ohms. How do you have the speakers wired?
The tweeters and mids are in parallel. I will attach a picture.
 
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Old 05-07-2018, 04:53 PM
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Originally Posted by haze324 View Post
a few things can cause clipping....distortion, drop in voltage that can be caused by a bad ground, bad fuse, weak battery (yes even while running), or sometimes a crossed wire. I know some of the TXO's last year had the + - reversed on the color scheme. That could be it too.
Battery is brand new this year. 600CCA Throttle X. I have 14 volts steady to the amp when stereo is cranked, idleing. Even revved above 2000 RPM and it stays steady at 14 volts. I will triple check the TXO's for wiring. The dashed line is positive on mine.

20 volts AC at 3/4 volume seems awfully low to be having cut out issues, don't you think?

Going to pull the fairing now and check things. Will post some pics after.
 
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Old 05-07-2018, 05:10 PM
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What year/model bike is it?
 
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Old 05-07-2018, 05:18 PM
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Originally Posted by InthewindMN View Post
What year/model bike is it?
2014 Street Glide
 
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Old 05-07-2018, 05:35 PM
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Originally Posted by HD_Doobie View Post
2014 Street Glide
pods or BT brackets? Line leveler?
 
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Old 05-07-2018, 05:43 PM
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Originally Posted by InthewindMN View Post

pods or BT brackets? Line leveler?
BT brackets and BT line leveler.
 
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Old 05-07-2018, 05:45 PM
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Here are some pictures of my connections.




 

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