For the Alpine CDA-9815 (and similar models with the 27Wx4 RMS internal v-Drive amp), I know the 8-10 guage fused wire is not needed while the internal amp is off (while running all ext. amps), but is there any benefit... because at this point, I am basically willing to spend the half hour to an hour for any noticable increase in listening enjoyment . anyway. does it help with cleanliness, distortion, skip-prevention, anything... or does anyone even know...
i will probably end up running it either way now that i think about it... lol.
Are you asking if a fuse will give you cleanliness, less distortion, or skip-prevention? No. Fuses are for electrical purposes in case there's a surge or a shortage. Some HU amps don't turn off while running external amps. Not sure how to wire headunits, and doubt you need a fuse in either case.
thanks oleg, but i know exactly what a fuse is. the internal amp on my HU can be shut off. i was just asking if anyone knew about these types of units, and if they benefited from extra available current (by upgrading to a thicker power wire)
For the head unit, it will NOT make a difference. You can probably even use 16ga. As for amps, at least 8ga, but for most part 4ga and 2ga for really power hungry ones.
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for the alpine decks with the internal V-drive amplifier (including 9815) which put out 60x4 or 27 rms x 4, alpine says that at least 10ga is "required" because the stock 12-16ga is not sufficient.
the question was asking if the internal v-drive amp is not in use, and powered off, then will the stock wiring be acceptable? ...i think it is fine.
. anyway. does it help with cleanliness, distortion, skip-prevention, anything... or does anyone even know...