philips subwoofer speaker

Monoprice DT-3 50-Watt Multimedia Desktop Powered Speakers, 40 Watts RMS, Near Field Frequency Response, For Mobile, Computer, and Audio Equipment

Monoprice SRD215 Powered Speaker 15in, with Class D Amp, Built-in Digital Sound Processor DSP, and Bluetooth Streaming, Portable and Lightweight -

Pyle 1U Server Rack Shelf Mount Tray - Black