Should i replace my plastic 6.5" compontent adaptors with MDF?

[calebkhill 10+ year member]

Those speakers look familiar Caleb lol

I'd like to use them as subs but idk how they would do.

 

[MellowHype 10+ year member]

Just got done sealing the doors as best as i could with what i had, didnt take any pictures though.

the doors outer skin is covered enough to make it sound good knocking it from anywhere on the outide.

I then used the rest and sealed up the two big holes and any other little holes that werent needed.

Is it safe to assume i can run my high pass filter a little lower now? before i had it set to 100 and had no bass coming from them, just set it to 75-80 and they are sounding much better.

i feel like i might have done damage to them though as when i first got the comps (Alpine spr-60c) i turned the gain up 3/4 (although i dont think they sounded distorted i had the max volume at 17/35) and set the eq to boost low frequencys. I remember them having really punchy bass which i havent seen for a while.