Using near field power, the Sony SA-Z1 High-Resolution Speaker System plays anything you listen to with meticulous detail. This series of hi-res speakers plays audio from a connected music player, laptop, or music-specific device. So you can enjoy your favorite classical piece with incredible clarity from this Sony signature series speaker. Additionally, this speaker series uses custom digital processing. That, along with its coaxial speaker layout, ensures these speakers precisely emit your music in a time- and phase-coherent manner. Furthermore, this speaker uses a woofer inspired by the Japanese Tsuzumi drum, which eliminates unnecessary and unpleasant vibration. And Sony also reduced vibration by using two types of aluminum to compose this speaker body. This way, you hear everything you want to without the annoying background resonance.