Onkyo Launches First Dolby Pro Logic IIz Receiver

Onkyo's new TX-SR607 receiver goes where no sound component has ever gone before by providing Dolby Pro Logic IIz, which gives you vertically-oriented sound in addition to the normal surround sound.
The vertical sound field is created by two speakers which sit above the television, and will provide a noticeable effect in situations where something like an airplane flyover is on screen. The 7.2 system features 90 watts of power per channel, Dolby True HD and DTS-HD support, plus HDMI switching with 1080p support for Deep Color and x.v.Color.
Onkyo also launched the TX-SR307 and TX-SR507, which are only 5.1 and lack the Dolby Pro Logic IIz. They have 65 and 80 watts per channel, respectively, but feature the same HDMI support as its more sophisticated sibling. The 307, 507 and 607 will all be out in April for $300, $400 and $600, respectively.