Yamaha HS8S 8 Inch Powered Studio Subwoofer Audio Equipment Black Color
Type: Bass-reflex powered subwoofer. Input connector (XLR and Phone connected in parallel): "XLR3-31 type (balanced) x 2 / Phone (balanced) x 2". Output connector: XLR3-32 type (balanced) x 2 (L&R). Input impedance: 10kΩ.