Audio Technica AT VM610xMONO Dual Moving Magnet Cartridge (Blue) nad the Bronze 500s have a speaker stand satellite adjustable the Bronze 500s have a larger cabinet The wireless subwoofer for deep bass 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