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Kia Soul 2014 (many images)
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<blockquote data-quote="keep_hope_alive" data-source="post: 8348913" data-attributes="member: 576029"><p>fun project. glad it was a nice bonding period.</p><p></p><p>I can't tell how the amps are mounted, just screwed to metal?</p><p></p><p>if you have hiss, it's not likely due to RCA routing. most hiss is due to noise from gain settings being too high and hot using enough HU volume range. some amps are noisier than others and some head units are also noisier than others. The hiss may be something you can resolve by turning down amp gains and using more HU volume or it may always be there based on the equipment used. the noise can also be because you screwed the amps to metal - which should be avoided. it can cause ground loops through the chassis. i secure amps to a board and then secure the board to the car. if you add silicone to the screw tips from underneath you can help mitigate rusting.</p><p></p><p>noise induced into RCA's by EMF is not a common problem in car audio where we deal in DC voltage. and any noise wouldn't be a hiss but a random sinusoidal signal. in home/pro audio it's a hum at 60Hz due to the AC voltage being at 60Hz.</p></blockquote><p></p>
[QUOTE="keep_hope_alive, post: 8348913, member: 576029"] fun project. glad it was a nice bonding period. I can't tell how the amps are mounted, just screwed to metal? if you have hiss, it's not likely due to RCA routing. most hiss is due to noise from gain settings being too high and hot using enough HU volume range. some amps are noisier than others and some head units are also noisier than others. The hiss may be something you can resolve by turning down amp gains and using more HU volume or it may always be there based on the equipment used. the noise can also be because you screwed the amps to metal - which should be avoided. it can cause ground loops through the chassis. i secure amps to a board and then secure the board to the car. if you add silicone to the screw tips from underneath you can help mitigate rusting. noise induced into RCA's by EMF is not a common problem in car audio where we deal in DC voltage. and any noise wouldn't be a hiss but a random sinusoidal signal. in home/pro audio it's a hum at 60Hz due to the AC voltage being at 60Hz. [/QUOTE]
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