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<blockquote data-quote="Lasherž" data-source="post: 8709988" data-attributes="member: 679555">I&#039;m of the opinion that with 5V pre-outs your DDx903S&#039; main job is acting as a splitter and not a line driver because your signal integrity is already top notch so long as you don&#039;t have ridiculous slack on your RCA cables. It would take a lot of coils to ruin a 5v signal unless you&#039;ve got it sharing a wire mesh with the Bat+ or something.For that reason I&#039;d just focus on getting the RCAs to where they need to go, I might try with and without the line driver, but I wouldn&#039;t expect to hear a difference other than requiring lower gain levels. 10V is quite a bit and you might start getting to a point of the gain knobs not going low enough on some amps. My RF Prime mono amp has that issue with an 8v signal.As for other suggestions I think it looks pretty good. Maybe add the box parameters on the subwoofers rather than just the rears. My next step if you haven&#039;t already would be a focus on sound deadening and sound proofing. If you&#039;re going for a competition build that doesn&#039;t always help with numbers, but it virtually always makes sound quality better.</blockquote>

[QUOTE="Lasherž, post: 8709988, member: 679555"] I'm of the opinion that with 5V pre-outs your DDx903S' main job is acting as a splitter and not a line driver because your signal integrity is already top notch so long as you don't have ridiculous slack on your RCA cables. It would take a lot of coils to ruin a 5v signal unless you've got it sharing a wire mesh with the Bat+ or something. For that reason I'd just focus on getting the RCAs to where they need to go, I might try with and without the line driver, but I wouldn't expect to hear a difference other than requiring lower gain levels. 10V is quite a bit and you might start getting to a point of the gain knobs not going low enough on some amps. My RF Prime mono amp has that issue with an 8v signal. As for other suggestions I think it looks pretty good. Maybe add the box parameters on the subwoofers rather than just the rears. My next step if you haven't already would be a focus on sound deadening and sound proofing. If you're going for a competition build that doesn't always help with numbers, but it virtually always makes sound quality better. [/QUOTE]

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