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Old 06-07-2018, 12:49 AM   #4001
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Extraordinary effort, Matt. I'm on the other coast, and will be starting a modest (by SOLSTICE standards) customisation of Coral Queen in November 2018. I spent the last four days reading up to p. 140 here, and making many, many notes. Much of your experiences here will come in very handy. My only comment is that I would have launched her for a test (find waterline; check stability; work out ballast) before fitting out the cosmetic parts of the interior, but I also know you're quite a way from the water and only want to launch once! Massive support beaming your way from Greenwell Point.
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Old 06-11-2018, 06:44 AM   #4002
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Hendo's Randall 35 Cray Boat complete rebuild, Perth, Western Australia

Ok sooooo it turns out amplifiers and headunits donít like laying on or near power sources. Found this out when I went to turn the lights on in the engine room and nearly blew up the speakers with this high pitched crack and frequency noise coming out of the speakers. As a result this afternoon I removed the amps and wiring from the electrical box under the seat and relocated them to behind the helm. Great result. Tiny little crack when the lights come on but no frequency noise. Might have to look in getting something to deal with that crack noise. Iím sure thereís a resistor or something I can put in the system to sort that. Apart from that all goo. Still a bit messy but a Couple of hours well spent.
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Old 06-11-2018, 07:28 AM   #4003
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Quote:
Originally Posted by Kit_L View Post
Extraordinary effort, Matt. I'm on the other coast, and will be starting a modest (by SOLSTICE standards) customisation of Coral Queen in November 2018. I spent the last four days reading up to p. 140 here, and making many, many notes. Much of your experiences here will come in very handy. My only comment is that I would have launched her for a test (find waterline; check stability; work out ballast) before fitting out the cosmetic parts of the interior, but I also know you're quite a way from the water and only want to launch once! Massive support beaming your way from Greenwell Point.


Hi mate. Welcome and thanks for your comments. Canít wait to see your thread on your Coral Queen.
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Old 06-11-2018, 08:38 AM   #4004
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Let there be music!
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Old 06-12-2018, 08:49 AM   #4005
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This arvo I added 6 more switches to the helm. 4 will be used initially and 2 will be blank spares to be used if required. Then I cleaned up the wiring install from yesterday.

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Old 06-12-2018, 09:40 AM   #4006
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Good access and layout. Per your continued amazing results!
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Old 06-13-2018, 10:04 AM   #4007
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Hendo's Randall 35 Cray Boat complete rebuild, Perth, Western Australia

Iíve started to wrap up the wiring loom from the circuit breakers up to the helm. Iíve finished that side of the loom but still have work on the other side. Iíve still got noise in the speakers so that saga continues. Now itís coming from the sounder/gps. I Might have to remove the 4ch amp and run the speakers direct off the head unit which may eliminate the noise. Will see what happens in the coming days once I run a couple more tests.

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Old 06-13-2018, 10:07 AM   #4008
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May the tunes ring clear! - LOL
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Old 06-13-2018, 10:08 AM   #4009
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May the tunes ring clear! - LOL


Lol very important. Clear tunes and cold beers
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Old 06-13-2018, 11:24 AM   #4010
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I think the car-stereo guys use a large capacitor in the power circuit to eliminate that "snap" noise - call a local installer and ask them?
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Old 06-13-2018, 06:27 PM   #4011
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Power caps can help take the strain off the power system but won't take away from the noise unless they are of the noise suppression verity. The wires to the speakers are picking up radiation from a power source that is unshielded or lacks noise suppression. It could be comeing from inside an electronic device. You'll need to run the speaker wiring out and as far away from anything powered by DC or AC as possible and it's power and ground wires. That may involve relocating the amp and stereo. If the amp has RCA inputs and the stereo has RCA outputs, use those to connect them. RCA cables are usually shielded. Running regular speaker wire from the stereo to the amp will cause noise and signal interference. If your amp and radio are marine grade as well as speakers, they should all be shielded to some extent. So it comes down to getting the wiring between everything away from the noisemakers. You can run the system and start shutting off breakers or pulling fuses until the noise clears up, and then try to move that electronic device away or reroute its wiring.



I use to be a car stereo installer in my teen years. I've done hundreds of installs but a boat becomes a noise monster that I haven't dealt with. All I can do is fall back on my glory days and the training I recieved. I hope this helps a little.
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Old 06-13-2018, 07:15 PM   #4012
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Power caps can help take the strain off the power system but won't take away from the noise unless they are of the noise suppression verity. The wires to the speakers are picking up radiation from a power source that is unshielded or lacks noise suppression. It could be comeing from inside an electronic device. You'll need to run the speaker wiring out and as far away from anything powered by DC or AC as possible and it's power and ground wires. That may involve relocating the amp and stereo. If the amp has RCA inputs and the stereo has RCA outputs, use those to connect them. RCA cables are usually shielded. Running regular speaker wire from the stereo to the amp will cause noise and signal interference. If your amp and radio are marine grade as well as speakers, they should all be shielded to some extent. So it comes down to getting the wiring between everything away from the noisemakers. You can run the system and start shutting off breakers or pulling fuses until the noise clears up, and then try to move that electronic device away or reroute its wiring.



I use to be a car stereo installer in my teen years. I've done hundreds of installs but a boat becomes a noise monster that I haven't dealt with. All I can do is fall back on my glory days and the training I recieved. I hope this helps a little.


Thanks mate. I am running 2 amps. A monoblock for the subwoofer and a bridged 4ch amp for the speakers. All connected to the headunit via RCAís. And a remote drive wire. Iíve done a few elimination tests and the noise is coming in via the rca leads. I am getting some of the below today from a local electronics company to see if it helps. I am pretty limited with moving things so if this fails Iíll try removing the 4ch amp and see what happens.

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Old 06-13-2018, 07:57 PM   #4013
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Check this:
http://<br /> https://www.crutchfiel...ide.html<br />

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Old 06-13-2018, 08:57 PM   #4014
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Thanks mate. I am running 2 amps. A monoblock for the subwoofer and a bridged 4ch amp for the speakers. All connected to the headunit via RCAís. And a remote drive wire. Iíve done a few elimination tests and the noise is coming in via the rca leads. I am getting some of the below today from a local electronics company to see if it helps. I am pretty limited with moving things so if this fails Iíll try removing the 4ch amp and see what happens.

Attachment 77437
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You're on top of it.
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Old 06-13-2018, 09:19 PM   #4015
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Suppress it till it croaks!!
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Old 06-14-2018, 06:48 AM   #4016
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Well I was able to sort the issue with the boats stereo out. Itís 99% gone. I know itís still just there but only just and only because Iím listening for it. Once itís in the water you wonít hear anything but music ... This $10 part has saved me a massive amount of time and relocation issues. I even bought a suppressor for my alternator to shut it up before it gets any ideas. Iíve never been so happy to hear no noise come out of my stereo speakers hahahahaha
Tomorrow Iím back to sanding but this time Iím in the engine room sanding the first coat of enamel back ready to apply some more coats to finish off.
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Old 06-14-2018, 07:27 AM   #4017
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Greetings,
Mr. H. $10? That's cheap...dirt cheap.


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Old 06-14-2018, 07:40 AM   #4018
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Greetings,
Mr. H. $10? That's cheap...dirt cheap.




Lol. Now Iím back on track and on the

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Old 06-14-2018, 07:51 AM   #4019
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I even bought a suppressor for my alternator to shut it up before it gets any ideas.
Alternator abuse!! - LOL

Good luck painting in the engine compartment.
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Old 06-14-2018, 10:14 AM   #4020
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Good to hear you have it sorted to your liking. Good luck down in the ER.
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