Not quite as loud -- my rise is pretty high so I lost power with more amps at a higher load:
My rise is usually 3x or so.
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Now... if I had four 4500s I think it would be another story... unfortunately they sold out and not even I get to keep some.
Next step... go back to the two 4500s and swap to my Stinger SP-1700s. Also planning to put some of my interior back in... I suspect my Jeep was louder with the plastic side panels in... but I removed them for my dampener log.