richard_uk Posted April 11, 2007 Report Share Posted April 11, 2007 I'm about to fit a basic system in my car, I've fitted countless car hifi systems in the past but haven't done one for a few years and I'm a little stuck. I'm fitting a Sony CDX-F7500 head unit, an Alpine MRV-F300 2/3/4 channel amp, Alpine components up front, and a JL Audio sub in the boot. The components will be connected to 1/2 channel, and the sub will be bridged on 3/4 channel, the bit I'm stuck on is... on the back of the head unit I have front, rear, and sub outputs, obviously the components will go from the front out, but is it best to connect the sub to the rear output or the sub output? Quote Link to comment Share on other sites More sharing options...
jfreeman420 Posted April 12, 2007 Report Share Posted April 12, 2007 but is it best to connect the sub to the rear output or the sub output? Yes it is best to connect the sub to the sub output. The head unit will have separate controls for the volume of the sub as well as a crossover point. You should actually have another set of speakers for rear fill. Quote Link to comment Share on other sites More sharing options...
richard_uk Posted April 12, 2007 Author Report Share Posted April 12, 2007 Thanks for your input on the output I've only ever used rear speakers once or twice and never found them necessary, I've always found good fronts and a sub more than adequate for me. Quote Link to comment Share on other sites More sharing options...
Jason Posted April 12, 2007 Report Share Posted April 12, 2007 Also on a lot of sub outs the pre out voltage is higher to give a bit more thump in the trunk. Quote Link to comment Share on other sites More sharing options...
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