I picked one of these up to compliment my AVIC5100 Pioneer nav system I installed in my 08 King Ranch F150. I felt it was missing something, probably the stock door speakers. Anyway this was perfect, I have no need or desire for some big sub box in my back seat, I installed this under the back seat and it really filled out the sound. It is not a chest thump-er, but it is a great compliment to the 5100. I did some goofing around with the settings and have it sounding great, but i need to read up on how to properly tune it. The unit gets pretty hot, so make sure it gets air circulation. The light glows under the back seat like ambient lighting in the new cars, I kinda like it. the unit has a good heft and feel to it, does not feel cheap.

I would definately buy another, considering one for my pontoon boat for the summer lake fun. I will update if I have issues or comments after break in.