8-inch speaker bass amplifier with 25W output. - Model: A25 - Output: 25W - Brand: Hartke - Connections: Direct Out, Effects Loop - Controls: Bass, Mid, Treble, Bright, Limiter, Volume Purchased and used only indoors, never outdoors. Bought about 15 years ago and used for only about 3 years. It has been stored at home since then. Currently, I don't have any instruments at home to test its functionality, but the power switch turns on and the amplifier produces sound. I believe it is still usable, but please understand that it is a used item. There are some slight bumps on the top. Please refer to the photos. Thank you.