Time to replace my Mark Levinson Sub in my 2004 LS430. Have you tried anything that has been an advantage over OEM?

 

There have been many threads on this topic. I personally haven't done it but several folks have with indicated they have had good results. Best to do a search first on the forum. Search function is your friend in this case.

 

Here is one i found posted in the FAQ thread on top of the forum:

https://www.clublexus.com/forums/ls4...-the-boom.html