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<blockquote data-quote="caseyboy43" data-source="post: 8169744" data-attributes="member: 657902">Here is where I show my true lack of understanding:In my old setup and new desired setup I want to run 2-way components up front (150w RMS / 300W peak) and coaxial in rear &amp;amp; subs off mono. I plan to run a 4-channel amp (JL 300/4). If I do not want to run anything off the HU power (not sure why not except unconfirmed thinking that it will be under-powered) how does this work? I had a local shop do the install so I am not certain that the rears were not run from HU.Idiot math is 6 speakers and only 4 channels - so is there any reason not to have the rear speakers run from HU power? Can those channels be bridged as well to double the power going to each speaker?Also, my subwoofers are 4 ohm - are typical components and coaxial 2 ohm or 4 ohm?I just picked up a second JL 300/4 for next to nothing and I know the theory is to get one (1) 4-channel amp that has the necessary watts per channel, but can these two (2) be wired to mimic one amp?I have researched the upgrade for a HO alternator (270a) and larger battery along with proper ground wires (Big 3 upgrade) and will do that before anything goes in my truck so as to not strain my electrical (subs are four (4) JL 6W0 powered by JL 500/1) - but will this setup work? It is still only 1100 total watts at full tilt&nbsp; - but can it be that inefficient not to consider it?Please provide insight. Really appreciate it. Even if I don&#039;t do the work myself, sounding like I know what is going on is half the battle.</blockquote>

[QUOTE="caseyboy43, post: 8169744, member: 657902"] Here is where I show my true lack of understanding: In my old setup and new desired setup I want to run 2-way components up front (150w RMS / 300W peak) and coaxial in rear & subs off mono. I plan to run a 4-channel amp (JL 300/4). If I do not want to run anything off the HU power (not sure why not except unconfirmed thinking that it will be under-powered) how does this work? I had a local shop do the install so I am not certain that the rears were not run from HU. Idiot math is 6 speakers and only 4 channels - so is there any reason not to have the rear speakers run from HU power? Can those channels be bridged as well to double the power going to each speaker? Also, my subwoofers are 4 ohm - are typical components and coaxial 2 ohm or 4 ohm? I just picked up a second JL 300/4 for next to nothing and I know the theory is to get one (1) 4-channel amp that has the necessary watts per channel, but can these two (2) be wired to mimic one amp? I have researched the upgrade for a HO alternator (270a) and larger battery along with proper ground wires (Big 3 upgrade) and will do that before anything goes in my truck so as to not strain my electrical (subs are four (4) JL 6W0 powered by JL 500/1) - but will this setup work? It is still only 1100 total watts at full tilt - but can it be that inefficient not to consider it? Please provide insight. Really appreciate it. Even if I don't do the work myself, sounding like I know what is going on is half the battle. [/QUOTE]

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