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Crutchfield Customer Review (What's this?)
Quality/thickness seemed sufficient. Old door speakers showed excessive wear and WATER damage. This baffle helps prevent that. I cut a "hole" in the back, at the bottom for the wires and air flow (based on CF recommendation). Increased hole size until the speakers seemed to have sufficient air flow. Without the hole, the speakers didn't move much and the hole improved bass response. Used a Propane Torch to heat up / melt / shape the back part that was hitting my window. Installed behind Kicker DS 5/1/4" speakers in custom mounts. 2002 Nissan Frontier Crew Cab - rear doors.
Pros: Get the job done, flexible, improve sound, protect speakers
Cons: Thickness may seem good, but I had to use a Propane Torch to heat up / melt and re-shape the back of the baffle that was hitting my window. Likely different from one install to the next (and if like me, you put in over-sized speakers.)