Apparently, you get a high-efficiency ultra low hertz (3-5hz) rotary subwoofer! First thing ... prototype [Chris] has rigged up is only a 300W amplifier (180W RMS), but as you can see in the ...

The HiFiMAN SERENADE Wireless DAC/Headphone Amplifier offers lossless streaming over Wi-Fi for $200 less than its predecessor. From Dr. Fang Bian, President and CEO, HIFIMAN Electronics: “The addition ...

AM/FM/SiriusXM/HD Lexicon Prem Audio System, 1050 watts, 21 speakers including center channel and subwoofer, 14-channel digital external amplifier, Quantum Logic surround sound, integrated ...