This is a bass preamp that packs the Ampeg SVT sound into a compact size. I'm selling it to organize my equipment. It's a used item, so there are some scratches here and there. The knobs are not scratchy and it works without any problems. Please refer to the photos for the condition of the product. The thick low-mids and moderate distortion create a punchy, rock sound that feels great. There are also Ultra Lo / Hi switches that can create a scooped sound. A must-have preamp for male (and female) bassists! Immediate purchase is OK. It doesn't have a box, but I will wrap it in bubble wrap for shipping. I look forward to your purchase!