A flimsy truck. My friend has a 04 ford F-150 with 2 13" Focals and the whole outside of his cab is shaking. and when he put change and cell phone on his roof they just went crazy.
yes....and it said weather didnt affect performance. they will WORK in cold weather just fine. output may lack in hot or cold depending I guess. but, i know it does affect output, just not sure which one.
im not sure if anyone answered this....but i do know that sound waves travel further in hot rather than cold the sound wave do not travel as far. i read that somewhere...just don't know were i saw it.