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I think the transformer does not provide a flat frequency response down to the 20-50 hz or lower range. You could try to flatten the curve with bass boost. It may be that a higher quality/price isolator would provide a flatter response on the bass end, but i haven't tested this hypothesis yet.
Sorry, there was a problem. Please try again later.Depending on where the line output converter is wired in you can lose 99% of bass. Most modern cars have built-in amplifiers since you purchased this product i would almost say your vehicle is stock. Depending on bose or stock you only have a select few places you can wire it in or a different device is needed.
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