jhnmdahl wrote: Sun Dec 02, 2018 5:39 pm
Nauti,
I'm thinking new amp power cables (probably some 6ga), a JL 6 channel digital amp (I already have this), and new speaker wires going to each speaker, driven from a new second battery. So step one will be the new battery, switch, and charging relay (already bought the switch and relay kit but not the wiring), step two will be installing the amp and power to run at least it off the second battery (and then contemplating what else to run off it).
John
Awesome -I was planning on typing up a lot of this as an install thread, but I can give you a preview.
Yes if you are running the JL M600/6 I would recommend new power cables, the stuff cobalt runs is severely undersized for basically any amp upgrade. Same with the speaker wire.
After a LOT of shopping NVX was the cheapest quality power and ground wire I could find. The wire is true to gauge – no 6GA wire wrapped in enough insulation to make it appear 4GA and is 100% Oxygen Free Copper. It is also Tinned and Certified for Marine use. Ordered 50ft of both Power and Ground. You might as well go 4GA its easier to find, isn't that much more expensive and is the minimum recommended for the M600/6.
https://www.nvx.com/4-gauge-cable/
I would recommend NVX for speaker wire as well. Again cheapest I could find for quality marine grade speaker wire. The 12GA may be a bit overkill, I would have preferred 14ga but they only make 16 and 12. A general guide is you don’t want wire resistance to be more than 5% of the rated speaker impedance. In English this means that 24ft is about the longest acceptable run for a 16ga wire hooked up to a 4ohm load.
Couple of the longer runs in the boat are 20+ft. After all the money we spent on amps it didn’t make sense to skimp on wire. We ended up buying 2 75ft rolls of wire.
https://www.nvx.com/12-gauge-wire/
I haven't crimped any of the power wires yet, but I am planning on going /w a hydraulic crimper. There are a ton on Amazon all for about $40, they are all made in China. Harbor Freight also sells one that gets OK reviews. I figure it has to work 10 times then it can break so why spend money on it. I really thought about doing the hammer crimper route, but the hydraulic makes a much nicer looking crimp.
Also bought a ton of Marine Grade heat shrink. Amazon was the cheapest I could find, TEMCo brand is what I ordered. Havent shrunk it yet, but it appears to be pretty good quality for a good price as well.
https://www.amazon.com/gp/product/B01F2 ... UTF8&psc=1
I love dorking out over stereo stuff, buy me a beer or two at CharBar and we can have an entire boat upgrade designed in no time
