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Discussion Starter #1
So basically I have a 2001 Wrangler TJ that has a newly installed Sony MEX-XB120BT, powering minimum of 55Wx4. My dash speakers are Kick KS 5.25 speakers with an RMS of 75W. When I play them louder they keep making a pop during more bassy sections and even for some songs it makes my whole radio shut off. What's going on? Thanks for any information.
 

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There are a few issues here that are contributing to you're problem.


1. 5 1/4 speakers aren't made to play deep bass. The cone area is just too small.
2. You probably have your bass turned up past 0, and/or a loudness or bass boost on.
3. Your Sony amp is NOT 55W x 4. That's a peak output under high distortion conditions. It's probably more like 15W, maybe 20 if you're lucky. Your radio shutting off is an indication that you've driven it into thermal protection.


Solution:
1. Play at lower volumes and keep the bass set at 0. This will allow you're deck to play at a normal operating range that it was designed to do.
2. If your deck has a built in crossover, set it so the bass cuts off around 60-80Hz. Yeah this will kill the bass more, but it will allow the speakers to play a little louder since the deep bass will be filtered out.


But wait! I want bass and I want it LOUD!!
1. Buy a subwoofer, and an amp for it.
2. Buy an external amp for your 5 1/4s

3. Still crossover your 5 1/4 in the same manner I mentioned before. Make sure your new amp has a crossover in it to do this if you're deck doesn't have it.
 

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There are a few issues here that are contributing to you're problem.


1. 5 1/4 speakers aren't made to play deep bass. The cone area is just too small.
2. You probably have your bass turned up past 0, and/or a loudness or bass boost on.
3. Your Sony amp is NOT 55W x 4. That's a peak output under high distortion conditions. It's probably more like 15W, maybe 20 if you're lucky.
X2 on all that but Sony does have its MEX-XB100BT receiver that puts out 40 RMS watts per channel. https://www.crutchfield.com/S-wgVNPPTbDsV/p_158XB100BT/Sony-MEX-XB100BT.html
 

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.......If your deck has a built in crossover, set it so the bass cuts off around 60-80Hz...........
I would cut off it around 125 hz. Even a 6.5 inch speaker really starts to get struggle below this freq unless it is a high end speaker.
 
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I would cut off it around 125 hz. Even a 6.5 inch speaker really starts to get struggle below this freq unless it is a high end speaker.

Yeah your probably right. Back in the day we used to do 125-150 cutoff for 3.5 dash speakers, but it wouldn't hurt with a 5.25. Subs are gonna be pretty much mandatory at that point to not sound like @ss.
 

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Discussion Starter #7
There are a few issues here that are contributing to you're problem.


1. 5 1/4 speakers aren't made to play deep bass. The cone area is just too small.
2. You probably have your bass turned up past 0, and/or a loudness or bass boost on.
3. Your Sony amp is NOT 55W x 4. That's a peak output under high distortion conditions. It's probably more like 15W, maybe 20 if you're lucky. Your radio shutting off is an indication that you've driven it into thermal protection.


Solution:
1. Play at lower volumes and keep the bass set at 0. This will allow you're deck to play at a normal operating range that it was designed to do.
2. If your deck has a built in crossover, set it so the bass cuts off around 60-80Hz. Yeah this will kill the bass more, but it will allow the speakers to play a little louder since the deep bass will be filtered out.


But wait! I want bass and I want it LOUD!!
1. Buy a subwoofer, and an amp for it.
2. Buy an external amp for your 5 1/4s

3. Still crossover your 5 1/4 in the same manner I mentioned before. Make sure your new amp has a crossover in it to do this if you're deck doesn't have it.
Okay thanks for the info and you're right about the base I was mostly just trying to play it louder. My Bass is set to 0 with not bass booster or whatever and I haven't changed that. Also my Radio is 55Wx4 RMS my max power 100Wx4
 

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Also my Radio is 55Wx4 RMS my max power 100Wx4
@SkyTheJeepGuy I was not aware of any receiver that put out more than Sony's 40 RMS watts per channel. What brand & model # receiver did you install that puts out 55 RMS watts per channel? That'd be great to find another high power receiver in addition to Sony's.
 

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Discussion Starter #9

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.......If your deck has a built in crossover, set it so the bass cuts off around 60-80Hz...........
I would cut off it around 125 hz. Even a 6.5 inch speaker really starts to get struggle below this freq unless it is a high end speaker.
What would you recommend for the slope?
 

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Normally I would start with 6dB, but since the front pods limit response so badly you may want to start with 12dB. You might need to experiment with this a bit.
 

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What would you recommend for the slope?
12db or 18db in my book. This is one reason I like to have freq response graph for the speaker. It will tell you what slope you should use.
 

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Have you checked the ground wire coming from the head unit? If you just hooked the ground from the head unit into the factory ground wire it may not be enough. You can get a decent ring terminal and hook it to a screw after taking any paint off under it.

You could also look into in line bass blockers to the front speakers so you could still get some bass from the backs. A sub and amp combo is ideal, but even with mine I try to keep the back speakers cut at 100 hz so I still have the punchy bass without distortion.

Sent from my SM-N950U using Tapatalk
 
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