Pioneer TS-WX20LP  "THE PUMP"

Built-in 200W max, monaural amplifier, MOSFET PWM power supply
•20cm Ø edgeless construction IMPP/Foam Composite Cone woofer with Aluminium diecast frame 
•Bass-Reflex design
•Heat resistant ABS enclosure
•Input/gain control/phase switch
•Built-in variable LPF (50-125 Hz, -12dB/Oct)
•RCA/speaker level inputs
•2-layer edge-wise voice coil
•Precision Triple Damper (large diameter Conex damper)
•Aluminium diecast heatsink