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Placement of External Speakers in Vehicle

Sorry to necrothread this, but thought I'd toss this out there.

This won't work the way you think, and if you're still active and curious, I'd be happy explain.

??? <<--- Means I'm curious to know - and if it can help answer further questions in potentially other scenarios - I'd REALLY like to know...:)
 
All other things being equal, the closer the speaker is to your ears, the better you'll hear it over the ambient noise. Also reduces the audio wattage you have to feed into it.

Unless you're using loud talkback, and have feedback-howl issues. A noise-cancelling mike is the way to reduce this. A noise-cancelling mike can't tell "noise" from your voice. It can only tell near audio (your mouth up against it) from far-away audio, like 3 or 4 feet. It's really a distance-cancelling mike. And if you hold one a full armlength away from your face, it becomes a voice-cancelling mike.

Putting a speaker on the other side of the truck cab allows a noise-cancelling mike to reduce feedback howl more effectively. But you'll have to turn the receiver volume higher than when it's a half a foot from your ear.

73
 
??? <<--- Means I'm curious to know - and if it can help answer further questions in potentially other scenarios - I'd REALLY like to know...:)

The audio signals are AC, not DC. The diodes will be a check valve in one direction, meaning they'll stop the positive voltage "swing" but not the negative, with relation to the cathode.

In effect, he's made a crude half-wave rectifier. It will sound pretty bad.

Also, connecting grounds from two different audio amplifiers may cause some issues.
 

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