Stylish black subwoofer made by YAMAHA, with volume adjustment. Although it's a compact subwoofer, it produces a considerable amount of sound. I used the volume setting at 2-3, and the sound pressure was amazing. Purchased in 2019 at Yodobashi Camera (photos attached). - Used until recently, so there are no issues with power or sound. - Used in a clean condition with no noticeable scratches or stains. - Regularly cleaned to maintain its condition. [Main Specifications] - Dimensions: Approximately 350W x 163H x 350D mm - Weight: Approximately 8.5 kg - Output: 50W (5Ω) - Speaker Unit: 16cm cone type (magnetically shielded) [Included Accessories] - Main unit - Subwoofer cable - Rubber pads - Instruction manual (warranty expired) - Brand: Yamaha - Type: Subwoofer - Power Source: AC power - Volume Adjustment: Yes - Design: Black finish Thank you for viewing.