Hi-Level interference with rear spks?

Quick question guys. If you are doing a  high level converter in a coupe that has 6x9's in the back dash and subs in the trunk, is it technically possible for the preasure from the subs to cause the speakers to move differently than what they should and cause the signal being converted through the high level to distort? I hope you can make sense of what I said there.

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

No, I wouldn't think it's technically possible to distort the signal, but the speakers themselves could be affected by the sub's air pressure if there is no barrier between them.  That could result in distorted sound from the rears.  Hypothetical question, or is this a troubleshooting problem?

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

This is some customer trying to prove me wrong with his "superior" Intelect. He says that his buddy's neon had a high level installed using the rear speaker leads to send signal to his sub amp. He then said that when his subs would play, they would cause the speakers to resonate at a different frequency than they were ment to. That inturn was causeing the speaker to send different voltage signals down the speaker wire back to the high level that was then being reproduced by the amp. This to me sounded like complete BS because even IF the speakers could possibly be causing a signal to be sent back down the line it should be the same frequency as the already existing signal as that is whats causeing the speakers to vibrate in the first place. Any Thoughts?

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

The high level input on an amp often just doesn't work right with the signal it gets from the OEM deck.  Wacky symptoms can result.  A novice can go nuts trying to figure out what the problem is.  The next step for his Neon buddy should be to use a high quality adjustable LOC instead.  If not that, replace the OEM deck with aftermarket and use line level.  That way, this fellow can use his intellect to do some real troubleshooting for his friend instead of trying to find justification for his fixation.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

I'd tell the customer that his superior intellect MUST be correct and the only solution is a new HU with proper low-level outputs to avoid the double-secret reverse-osmosis speaker-cone-induced high-level interference distortion.  And be sure to charge him double your normal install rate just so you can make sure the distortion is eliminated. 

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DYohn] wrote:

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion. 

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Best Line Ever, thats going in my sig line

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

Thanks for the laughs. That's the best thing I've read here in a while.

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My ex once told me I have a perfect face for radio.