In Reply to: is it normal for a car sub to rattle in free air? posted by thump on December 28, 2016 at 15:35:54:
i haven't taken them or the mains outside yet to test for distortion and volumes, but today, i tilted it down instead of propping it up on its magnet about an inch off the floor and even at low volumes, the bass was quite loud as i had the input pegged, but didn't hear any buzzing.
when i turned the input down to about 50%, there was still just a little bit too much bass on some tracks and apparently a lot of cancellation on others, but i didn't hear the buzzing.
MAYBE, just maybe what i was hearing was the sound of the magnet's vent bouncing off the floor or possibly choked a little by the narrow tunnels i created with the jigsaw puzzle edged foam pads i propped it up with. higher frequencies are less prone to cancellation than lows, and there's probably a venturi effect going on through the port too. at lower volumes, i thought i might be hearing a buzz coming out of the port.
before i go all over town looking for a duffle bag large enough that i'll be able to carry it on the bus with, i'll do some troubleshooting to see if there's a reasonable explanation for the anomaly.
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Follow Ups
- it MIGHT have been a vent backwave distortion - thump 17:53:45 01/05/17 (0)