I changed my system and no longer need this single unit. Purchased from a movie theater in Arizona. Designed to be used as a 2 way full range system using a crossover built into the 4638 bass cabinet. Mine came with the 2360 (which I believe is actually the 2360a as it is identical to my other one). I did some Duratex touch ups on the bass cabinet and the rest is all in good shape. Mine came with Jbl speaker grills and I added grills over the vents as I had small cats that thought they were fun. There is plenty of info available online but I have some of it if you need. I used it as a separate sub and mid. I never drove the sub over 600 watts (Crest amp) but it always sounded find. I rarely drive the mids loud enough to find a limit (my ears hurt).