High input is louder than RCA.

[Jim Boom 10+ year member]

I thought RCA was suposed to be the ****, but when i used speaker level outputs and the high inputs on my amp it was alot louder.

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[nosaj070 10+ year member]

Well you may not have had your gains set correctly, your hu could have had low preout voltages, theres really no reason either of them would be any better than the other. RCAs are just a whole lot easier to deal with in my opinion.

 

[LeXtreme 10+ year member]

Well what is the point for each then?!!, and is it alright to run 6x9's or component speakers on low input!? //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[southprk 10+ year member]

high level ins allow you to add an amplifier to a system not really designed for an amplifier. Factory HU's rarely have RCA outs, but since there are speakers, there is obviously a high level input available.

That said, RCA is THE best choice without question. High-level inputs are very dirty and the extra volume is simply distortion. Aside from that, if you have an aftermarket HU then you're giving up an amped channel to run your amplifier - just inneficient.