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2020 23 MXZ stereo replacement.


dwc032

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This will be a long post. I also want to thank @G Spot and @djheywood for all their help. 
 

I have begun the stereo replacement on my 2020 23 MXZ. I have had the boat for a year and the factory stereo is just not up to our family’s expectations. I added a second pair of Icon 8s and am replacing the stock Wetsounds sub with a JL W6.  I am replacing the two Wetsounds DSP amps with two Wetsounds tuneable amps.  

One Syn6 for cabin speakers and one 2.3 HP for the tower speakers. I know the 2.3 HP is a bit of an overkill for the Icons, but I will just tune the amp conservatively. I am adding a JL HD750 for the sub. And I had all the connectors made so I didn’t have to cut the factory harness.  I am hoping I can fit a ported box under the helm.  

The DSP amps just don’t do the speakers any justice. I started to take the sub out from under the helm and the sub was only screwed into the box with two wood screws.   

Once I got the sub out, the box was lag bolted by one screw and it wasn’t even screwed down all the way so the box rocked back and forth by about the 1”.  There were four holes on the bottom for air to escape, so not air tight at all. There were also wires hanging down and resting on the box, which is probably why there was a horrible rattle. I will update with pics as I get more and more work done. 

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Edited by dwc032
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@dwc032, i have done this same project many times. You’re going to be very happy with the results. Your biggest challenge now is building a box for the sub.  Ported boxes are tough to fit under there, but there’s a little more room in an MXZ than an LSV. Are you hiring the job out or DIY?  Do you have a heater?  If so, that will make it even more challenging. Also, are you planning to reuse the factory grill for the new sub?  That decision will also play a role in the outcome. Last question... why did you buy a SynDX 6 if you were adding a separate HD 750/1 for the sub?  The SynDx 6 is going to have two unused channels (in the factory system it uses 5+6 bridged to power the sub). You could have saved a few bucks and bought the Syndx 4 for your cabin. It’s identical to channels 1-4 on the Syndx6. 

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Great job so far.  It's so funny to see your experience on the sub box.  Ours must have been built and installed by the same boob at the factory.  The quality control on the stereo stuff is just not up to where it should be on a 150k+ boat.  

You will be very happy with your results.  I barely fix a non-ported box in my mxz with the heater.  If you can make it work you will be a houdini!

Have fun and take your time.  Congrats on taking the plunge!

 

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8 hours ago, IXFE said:

@dwc032, i have done this same project many times. You’re going to be very happy with the results. Your biggest challenge now is building a box for the sub.  Ported boxes are tough to fit under there, but there’s a little more room in an MXZ than an LSV. Are you hiring the job out or DIY?  Do you have a heater?  If so, that will make it even more challenging. Also, are you planning to reuse the factory grill for the new sub?  That decision will also play a role in the outcome. Last question... why did you buy a SynDX 6 if you were adding a separate HD 750/1 for the sub?  The SynDx 6 is going to have two unused channels (in the factory system it uses 5+6 bridged to power the sub). You could have saved a few bucks and bought the Syndx 4 for your cabin. It’s identical to channels 1-4 on the Syndx6. 

Yeah I can’t wait to get it done. Might take me a few weeks with work and kid stuff. 
 

I am doing the work except the box and I have a heater. And after my buddy coming over he said there probably is no way I can fit a ported box in there. I will reuse the factory grill. And I already had the Syn6 from my old boat so I just decided to run it. And maybe I can add another sub in the future. 

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4 hours ago, djheywood said:

Great job so far.  It's so funny to see your experience on the sub box.  Ours must have been built and installed by the same boob at the factory.  The quality control on the stereo stuff is just not up to where it should be on a 150k+ boat.  

You will be very happy with your results.  I barely fix a non-ported box in my mxz with the heater.  If you can make it work you will be a houdini!

Have fun and take your time.  Congrats on taking the plunge!

 

Yeah maybe the boxes were made on a Friday...lol I agree this kind of workmanship on 150k boat is ridiculous!  

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Ok I got the amps and sub installed. I am horrible about taking pics along the way. But here are a few. The system sounds absolutely amazing and the W6 is sick!!!  My buddy did an excellent job on the sub box. I think I could have done a ported box, but would of had to do a lot of custom stuff. The Wetsounds 2.3 amp on the icons is awesome. I am pretty happy how it turned out. 

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5 minutes ago, Slayer said:

Congrats!!  I'm happy for you.  

 

HOWEVER....you're making me think I should do the same.....

#stopspendingmymoney

The reason I didn't do it earlier is because I didn't want to mess up the electronics already in the boat.....lol  Well after reading other threads and having the RCA plugs made and not having to cut any wires, it was a really easy install.  

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