I originally had a 150 watt class D mono amp but now I have a 2 ch amp running 300 watts bridged mono. I have it on a 10 gauge power cable that is rated to 200 watts, which was installed with the original amp. Is it worth the trouble to change the cable to a thicker gague? The new amp reccomends 8 gauge. What would happen if I keep using the 10 gauge cable?
Okay now one person told me its okay and another told me to change to 8 gauge. Can I get some reasoning please?
Also the amp is a Jensen that I got free off a friend. It sounds good and has been working for years but I think it wants to roast itself. It gets quite hot to the touch but not enough to burn or really hurt. The thermal protection circuit (it does have one) has never been triggered though. I wonder if I can rig some computer fans to the side of it...
You should use 8 gauge wire because the amp will most likely be over 10 feet from the battery. If the amp uses two 25 amp fuses you need a 50 amp fuse in the line from the battery. It needs to be no more than 18 inches from the battery. You can buy amp fans or make one to cool down the amp.
You still haven't answered my question. What kind of amp do you have? Most decent amps will run warm. Only the shi**y Sony and Pyramid runs that hot. You don't need 8 gauge unless you're maxing out the amp. 10 gauge is good enough. If you're going to up grade, upgrade it to 4 gauge or lower for the future. Don't waste your time and money on 8 gauge. Not worth it.
Really? Well then he must have one of those shi**y Jensen models. I have a jensen that still works great. I use it to experiment cause it can take some abuse. The amp runs warm, hot if I go lower than the min ohm requirement. To solve the heat problem, I installed a custom cpu fan. Even Jensen is better than Sony AND pyramid.