Thank you for accepting the cancellation. I'm sorry! 20W Orange-based amplifier, the Crush 20 B. - Brand: Orange - Model Name: Crush 20 B - Power Source: AC - Output: 20W - Color: Orange Thank you for viewing. I have confirmed that it produces sound. There isn't much noise from the knobs either. The sound quality was also good! I'm selling it because I don't use it much. Thank you.