Depth #2: 11.42 (Bottom). Performance With Bass EQ, you can maximise the performance of your system and get even more powerful bass. 18mm high-density fiberboard high-quality ventilated shell, black felt on both sides, reclining backrest and backseat perfect fit, flush and beautiful. High differential frequency response, high signal-to-noise ratio brings stable communication, low noise, excellent anti-interference ability, can provide you with more realistic 3D surround sound. , the standard input impedance can get more output power, and will not cause underdamping, bass degradation and other phenomena.