Praise Baby Jesus, The Noise is Gone!

[Guntersville230]

Well, I sure hope you get it.... I ordered mine in the middle of June and it still hasn't arrived!!!!!


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Thats a bummer....ordered mine early in the year and turn around time was pretty fast, but it maybe a supply demand issue with more people wanting them. I have no connections with this person but I would hope they step up and get it done so others dont have this experience as well!

[Guntersville230]

Well, I sure hope you get it.... I ordered mine in the middle of June and it still hasn't arrived!!!!!


Sent from my iPad using PLT Nautique

This link has his email address in it if you want to touch base and see whats up?!

https://www.planetnautique.com/vb5/f...t-the-boom-out

[Tallredrider]

Well, I sure hope you get it.... I ordered mine in the middle of June and it still hasn't arrived!!!!!


Sent from my iPad using PLT Nautique

Maybe you meant the middle of May, since tomorrow is June 15.

He is my neighbor and I had him make it for me, and then he started making others and put them up on Ebay. I was just at his shop for him to make me some unrelated hardware and I saw some vents there. They looked unfinished, but at least he has some, so I know he is making progress.

Dumb thing is that I have had the vent laying in my garage for a year now and I have not gotten around to installing it! I have a number of projects to do, and it just seems I would rather go to the lake than work on the boat. And in the winter, I lost motivation to work on it.

[toomuchuv]

Yes. May.... thx tallredrider! Send me yours!! I'll install it! Haha

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[imhoff]

2) rewired ALL amps to battery bank 2, still had no luck (done at local stereo shop, changed amps and added a 10" sub under passenger) see wiring photo 1.....BUT head unit still wired to ground bar and overall boat +/- on same battery post....but STILL noise was present

3) after stereo update/upgrade/install I changed overall wiring to battery bank 2.... (see photo 2) grounded head unit to same post as amp grounds. REMOVED boat +/- from screw post and purchased $10 boat add post to wire directly to secondary post.....and tested all today....BOOM no noise!!!

So to clarify, you installed one of these https://goo.gl/JWoVmF to one of the batteries, which allowed you to isolate power to the amps from the rest of the boat? You then wired the headunit to this "new" terminal (with the amps on it), and that's what ultimately got rid of the hiss?

Thanks in advance!

[Guntersville230]

So to clarify, you installed one of these https://goo.gl/JWoVmF to one of the batteries, which allowed you to isolate power to the amps from the rest of the boat? You then wired the headunit to this "new" terminal (with the amps on it), and that's what ultimately got rid of the hiss?

Thanks in advance!

Yes. This got rid of the majority of the hissing. However, if I am getting REALLY picky, I still feel like some hiss is still there. I think NO ONE in the boat ever notices, but because i "know" what I am listening for ,or I am just OCD and annoyed with the whole process of isolating it in general, I feel some noise may still be present at extremely low levels. This is likely due to the TERRIBLE polk head unit that nautique has switched in the 2018 (wow, only took them 4-5yrs to correct a known issue) and I am not willing to go through the pain of doing a different head unit.

Overall, this is a fairly simple rewire that is worth a try if you can get ANY improvement! Good luck and post back what you feel your results are!

[Guntersville230]

So to clarify, you installed one of these https://goo.gl/JWoVmF to one of the batteries, which allowed you to isolate power to the amps from the rest of the boat? You then wired the headunit to this "new" terminal (with the amps on it), and that's what ultimately got rid of the hiss?

Thanks in advance!

Actually just looked back at picture. The red and black wires wired to the "new" terminal are positive and negative to the WHOLE boat. Then on the battery screw post are the isolated positive and ground for the amps and head unit. Either way should work ok as long as they are separate.

[Hyong1005]

I finally got around to looking at my batteries. Mine is configured differently. Here are some pics. Any suggestions or ideas where the engine noise is coming from?



[IMG]

https://uploads.tapatalk-cdn.com/20170902/77e9b9c1757be664f196e759859a320b.jpg[/IMG]

[Hyong1005]

I decided to look at all of my amps and I found the culprit. 1) gain for my speakers were to high so I set it lower however, when I turned the engine on, I still heard the hissing sound. 2) I checked the speaker wire connections and bingo! I only have 2 tower speakers and they were wired goofy. One was hooked up to the 1-2 channel with channel 1 left and channel 2 right, And the other one was hooked up to the channel 3 left and channel 4 right. So I put them as they should to channel 1 left and right, and channel 2 left and right.

Hope this helps someone troubleshoot.

[MLA]

they were wired goofy. One was hooked up to the 1-2 channel with channel 1 left and channel 2 right, And the other one was hooked up to the channel 3 left and channel 4 right

.

This is called bridged. Its an acceptable and common configuration of making a 4 channel into a 2 chnl amp amp when driving only 2 speakers. It taps the amps f potential for more wattage as compared to running a 4 chnl amp in 4 chnl stereo.

Youve likely greatly reduced the available wattage for the speakers. Wired and tuned correctly 2 chnl bridge mode would not create noise any more than running the amp 4 chnl stereo.

[Hyong1005]

.

This is called bridged. Its an acceptable and common configuration of making a 4 channel into a 2 chnl amp amp when driving only 2 speakers. It taps the amps f potential for more wattage as compared to running a 4 chnl amp in 4 chnl stereo.

Youve likely greatly reduced the available wattage for the speakers. Wired and tuned correctly 2 chnl bridge mode would not create noise any more than running the amp 4 chnl stereo.

MLA - so the bridge provides more wattage? Are you saying if properly done, the bridge shouldn't have created the noise ? I have plenty of volume - I can always raise the gain couldn't I?

[MLA]

Yes, bridging across two chnls delivers more wattage then speaker wired to single chnl.

No, bridging an amp should not inherently cause noise. Going from bridged 2 chnl to 4 chnl stereo and using only one half of the amp and the noise is reduced or gone, is note worthy though.

[imhoff]

Wire the head unit power harness directly to the power terminals of the largest amp or distribution blocks, if present. With main battery switch off, everything is powered down.

Hello MLA. My boat was already setup like that. Our next step is to run a dedicated ground from the amps to it's own terminal on the battery. Anything else that you suggest while we're at it? Thanks so much in advance.

[Tallredrider]

Hello MLA. My boat was already setup like that. Our next step is to run a dedicated ground from the amps to it's own terminal on the battery. Anything else that you suggest while we're at it? Thanks so much in advance.

I think the ground is more likely the problem than the power.