Audio Systems/wire gauge

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Question
hey i have two amps: a kicker zx 350 and a Sony Xplod XM-ZR1852. the sony is powering a mtx thunder 5500 and kicker is powering 2 12" kicker cvr's. i only have a 8 gauge wire with a 80A fuse. i blew my fuse after about a week. do you think i should spend some money to get 6 or 4 gauge wire? also should i bridge my amps? or should i switch the xplod amp to the 2 12's and the kicker to the 1 12? or keep it the way it is.
         Thankyou very much.
                     ,Treble Toney

Answer
Well, you could use bigger gauge wire and that would help with voltage regulation during heavy audio signal peaks.  Of you cannot get 6 or 4 gauge, you could run another 8 gauge in parallel.

But, the reason the fuse went out is because it is too low.  Depending on how you have the impedance loads matched to the amps you could be drawing in excess of 80 amps easily during heavy bass passages.  

You can wire up the speakers the easiest way to make the connections.  Just watch the impedance so they don't overburden the amplifier causing it to go into over-current protection mode.

You can experiment with different speaker/amp loading, but there is no particular benefit in doing so; as long as it is working, leave well enough alone.

I suspect that if you went to a higher rated fuse you would be alright.  Maybe a 100 amp fuse would do the job.

Finally, you may need a high output battery and/or alternator in the car to keep the energy level up on the amplifiers.

Good Luck.  

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Cleggsan

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Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.

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Have been associated with audio design, standards, testing and component systems for over 40 years.

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Life Fellow Member of Audio Engineering Society Life Senior Member of Institute of Electronic and Electrical Engineers

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Review technical manuscripts for IEEE Spectrum Write occasionally for high-end audio publications

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BSEE/MSCS/MBA

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Past Employee/advisor to several well known audio products manufacturers

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