What causes panels to wear out?

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I’m inclined to replace woofers with a spec that will perform comfortably higher into the mids and raise the panel crossover point higher. 350-400range.
The options I mentioned in this earlier post would work well: https://www.martinloganowners.com/threads/what-causes-panels-to-wear-out.20113/post-214190

And if anyone wants some serious mid-bass dynamics, the answer is to deploy an MBM setup, which is straightforward with an 8-channel miniDSP or the six-channel DriveRack Venu360. See: https://www.martinloganowners.com/threads/mbm-deployment.17781/
The MBM is one of the most effective ways to make the system perform in the mid-bass area. Big action movies are a ton of fun, and dance music now has that chest-slam needed to satisfy. However, even classical music and solo piano (my standard) are not overdone and sound natural.

Many ex-ESL owners report returning to Dynamic speakers to regain that mid-bass hit. Had they deployed an MBM, they could have had the best of both worlds.
 
Thanks again JonFo, I'm not sure if 8 Channel is the best option for me as my whole 2 bedroom house is 750 square feet. I just have enough room for 1 ML Sub and the ReQuest are a bit overwhelming in the Living Room. The Sequels fit a bit better but as we know have a 10" woofer vs. the ReQuest has the 12s.
I do have a quick question, based on your previous suggestion, I was going to upgrade the Woofers. I was looking for a Fs close to OEM ML but now reading your post's, I should look for a Woofer that has a high frequency response. Is that true?
 
I do have a quick question, based on your previous suggestion, I was going to upgrade the Woofers. I was looking for a Fs close to OEM ML but now reading your post's, I should look for a Woofer that has a high frequency response. Is that true?
Yes, you want something that is clean to at least 500Hz. In the active crossover, you can use something like 350Hz 24dB/Octave between the woofer and panel.
If the room is small, then no need to get complicated, one sub should do it, even with the Sequels.
 
I'm looking to go active crossover, do you have to change wiring in the cabinet when you unhook the old woofer because I'm not sure how to do this.
 
Yes, you must bypass the passive bass xo (cap and inductor) and connect the woofer directly to the second pair of speaker binding posts.
 
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