When we compare it with other 3D sound bars, the ZVOX 420 has a power output of 45 watts and lacks the amplification of many of its competitors. While this lack of power may, on the surface, seem troubling, it doesn't necessarily mean that the ZVOX 420 won't be loud enough for your needs. For example, if you live in a small apartment or dorm room, the speaker bar should provide sufficient and pleasing volume. However, in most settings, the volume of sound produced from the ZVOX will be a bit thin and underwhelming.
In an effort to create the sensation of surround sound, ZVOX employs the use of its proprietary PhaseCue II virtual surround system. PhaseCue II produces a wide sound stage, creating the illusion that you are receiving sound from both the side and behind you. This technology is actually quite effective, especially considering the fact it is not capable of generating true 5.1 channel surround sound.
The ZVOX PhaseCue® virtual surround system creates theater-like three-dimensional sound without the need for speakers throughout the room. Want to listen to music? Stream audio from your phone or tablet via aptX Bluetooth wireless connectivity. Having trouble hearing the voices on a show? Push the AccuVoice® button on the remote and vocals become crystal clear automatically. Tired of loud commercials? Push the OL (Output Leveling) button on the remote and the ZVOX will tame loud commercials before they annoy you. You can also program the ZVOX system so that it works with your current remote control. A large, easy-to-read display is hidden under the front grille, and disappears when you’re not using it.