Audio Technica AT VM610xMONO Dual Moving Magnet Cartridge (Blue) nad The wireless subwoofer for deep 500 700 The wireless subwoofer for deep bass The newly designed tonearm base allows you to adjust both the azimuth and the vertical tracking angle (VTA) Part of the 600 Series in Audio Technica’s new VM cartridge line – a line that harks back to A T’s early days as a manufacturer primarily of high end phono cartridges – the VM610MONO is equipped with dual magnets that are internally connected to reduce record noise and obtain a highly focused “center” sound image that stereo cartridges can’t provide With a specialized body and internal wiring dedicated to monaural sound reproduction