Logitech X-540 5.1 Speakers (Dented Box)

* 5.1 Surround Sound: Immerse yourself in movies and games with a full 360° of audio.
* “Matrix Mode”: Enjoy a 5.1 surround sound effect even from 2-channel stereo sources.
* Frequency Directed Dual Drivers (FDD2™): Get balanced, uniform sound without inconsistent, uneven spots.
* Real-time Bass Equalization: Maximize bass response and minimize distortion.
* Ported Down-firing Subwoofer with 5¼" Drivers: Enjoy deeper bass thanks to greater air displacement.