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Old 04-14-2014, 08:36 AM   #1
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POLK db651s Question

I ordered the Polk db651s for the soundbar. Does anyone know if I need an adapter for these in order to mount them in the soundbar and use the OEM grills? I have the wire adapters so I don't have to splice wires.

If I need an adapter ring, does anyone know which one I need?

2014 Rubicon X Unlimited.

Thanks!

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Old 04-14-2014, 09:11 AM   #2
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I just put them in the sound bar of my 97 TJ a few months back. Mine just screwed in, I could not get the covers to work however. I have been running them grillless....

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Old 04-14-2014, 11:19 AM   #3
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You would need to mod the stock OEM grill I am thinking. I thought about the same thing when I install my Morels and just used the ones supplied with the speakers. You will need an adapter ring regardless. You can pick them up at Best Buy.
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Old 04-14-2014, 02:00 PM   #4
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I ordered these from Crutchfeld and they sent a bracket you mount the speakers in, and then mount that to the same holes where the stock speakers were. Stock grill goes back like stock. They also sent a harness to attach the wires to the same stock plug...

I just put these in the sound bar so far, and they seem under powered. the base seems muddy and lose. I'm not sure why they sound so poor compared to the crappy stock speakers
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Old 04-14-2014, 07:25 PM   #5
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Originally Posted by Nburg View Post
I ordered these from Crutchfeld and they sent a bracket you mount the speakers in, and then mount that to the same holes where the stock speakers were. Stock grill goes back like stock. They also sent a harness to attach the wires to the same stock plug...

I just put these in the sound bar so far, and they seem under powered. the base seems muddy and lose. I'm not sure why they sound so poor compared to the crappy stock speakers
You may have a phase problem. It is important to connect the (+) and (-) on the new speakers the same way that the stock ones were connected. If you mix that up, it will throw off the sound from the speakers. This could be the reason why everything sounds muddy and slightly out of sync. I would look at the back of the stock speakers and see what wires connected to the positive and negative, and make sure you follow that same alignment on your new speakers.
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Old 04-14-2014, 08:02 PM   #6
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I used the Adapter harnesses provided by crutchfield so you can't connect them backwards (different size connecting leads.) its not horrible, just a little off at higher volume.
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Old 04-14-2014, 09:20 PM   #7
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I used the Adapter harnesses provided by crutchfield so you can't connect them backwards (different size connecting leads.) its not horrible, just a little off at higher volume.
Yeah, I see what you are saying, so that should help. The muddiness that you are talking about could also be that there is a lot of distortion at high volumes, especially with the loudness button turned on. The cheap stock speakers probably have less frequency range too, and they probably don't pick up all the distortion that the HU is putting out.

It gets better with an amp. With an amp there is no need for the loudness button. With an amp, there is a HPF, so the bass is taken out of the equation, and you wouldn't have that problem of midrange speakers trying to handle bass too. With a full range speaker, you won't have that separation. So, with good speakers, you will hear all of that horrible full range sound coming from the HU. Plus, these two way speakers aren't really that good for bass. They are basically treble and midrange speakers, trying to handle bass too.

This is why its best to get an amp with a subwoofer, that sets HPF for the speakers, and LPF for the subwoofer.

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