for a project in collaboration with stine janvin motland i built this 4-channel transducer bass shaker system.

the system has four transducers (visaton bs 130, 4Ω), two class d stereo amplifiers (2x50w, tda7492 chip) and a powerful atx switching power supply (codecom pm-350c).

i modified the power supply to only give out 12v (yellow&black cables) and also made it start up automatically by shorting the green cable (ps-on) to ground (black).

transducers 1

transducers 2

there's no volume control so better take care - the system is very hot.