Full audio upgrade in a Lexus RX using only an iPhone as a source running directly into a Helix DSP Pro via USB audio.
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This is the Helix controller used for volume and sub level control. I built a little pod out of expanded PVC, a little Dyna-Glass and lightweight body filler. It's covered in matching vinyl and located within easy reach in the drivers location.
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The hatch was designed to be able to swap equipment out without much extra work. As of now, it's Zapco, JL Audio and a Helix DSP Pro.
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Sub duty at the moment is a single SI BMK 12".
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I spent a solid two days sitting on my legs wiring up this monstrosity of barrier strips.
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Helix DSP Pro with the mid bass, center channel and sub RCA's connected and run to the JL 900/5 HD amps.
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Wiring for the iPhone to the Helix via USB audio.
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Door dampened.
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Outer door dampened.
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Under hood stuff.
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Shameless shop plug, lol.