I bought this amp manufacturer refurbished, and used it for less than a week. It comes with a 3 year warranty that is transferrable per thecissuer. There are no mechanical issues whatsoever, and I explain further down why I’m selling and how the blemish occurred. The amp is very compact so that it can fit under a seat easily. It comes with a bass knob, a manual, mounting screws, and a wiring harness in case your radio does not have RCA outputs. After I installed the amp, I noticed that the copper colored Precision Power label was taped down on the corner with clear tape. When I removed the tape, the corner came up a little. I super glued it back down, but ended up getting some glue on the top of the label. The product I used to get the glue off, did what you see in the picture. Hopefully it won’t be a big deal to the person who buys it, but I want to be upfront about it. I am selling this amp because I thought I could pair it up with a Kicker 600.1, but was having trouble trying to get them to play exactly the same - apparently it’s best to stick with identical amps. The seller said they would allow me to return the amp, even though I removed some of the finish on the label, but that they do not refund shipping since the amp is not defective. Features: • 2-Ohm Stable • RMS Ratings: o 4 ohms: 400 watts x 1 chan. o 2 ohms: 650 watts x 1 chan. • Frequency Response: 10 - 250 Hz • Variable low-pass filter: 35 - 250 Hz • Variable subsonic filter: 10 - 50 Hz • Variable Bass Boost: 0 - 12 Hz, @45 Hz • Dimensions: 5-5/16"W x 9"L x 1-11/16H