I recently bought a Clarion 120W 7" powered sub, which I imagined would fit nicely beneath the front seat in my '84 300D. It didn't. After considerable agonizing over its eventual placement, I found that behind the back seat rest might be a good candidate spot. I was able to attach it to the seat back with some of the hardware provided, and it seems to be a decent fit. My question is, since the sub is now in a relatively enclosed space, would it help to vent the enclosure somehow? Plainly, the bass was more audible while the seat was still unattached, and became less audible once everything was put back together. Lowering the center armrest helps a little, however. Overall, the sound is awesome, and I'm considering the purchase of a second subwoofer to go on the other side.

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Matt
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1995 E300 Diesel (Die Blau Frau)