[KevinH1990]

I want to determine the maximum mounting depth I can consider when selecting a replacement speaker.

The stock speaker is 2.5 inches deep:



The total depth of the enclosure is slightly less than 3 inches:



I expect that stuffing a speaker that is too deep into the enclosure so that the bottom of the speaker makes contact with the back of the enclosure may cause problems so it is likely best to avoid speakers that are over 2.9 inches deep.

I bought this enclosure so that I could practice and evaluate various options before modifying the enclosures in my car. I may decide to stay with a 5.5 inch speaker like the stock units and just upgrade the quality of the component.