Onkyo has just released a couple of new high-end THX Ultra2 receivers upon us all, in their TX-NR906 and TX-SR876 units. Both units feature 7.1-channel surround processing, four HDMI inputs, new THX Loudness Plus processing, XM HD, and the fantastic HQV Reon-VX upscaling processor. These bad boys will upconvert just about anything you throw at it to 1080p. In terms of audio, your got both units conservatively rated - the TX-SR876 is at 140 watts per channel, while the TX-NR906 hits you with 145 watts per channel. The TX-NR906 specifically is also Windows Vista certified, and supports digital audio devices (like the Zune) by way of its front USB port. You can also stream a bunch of audio formats on your local network to it, as well as streaming Internet radio, including SIRIUS iRadio.

Both models are available now. Suggested retail comes out to $1,799 for the TX-SR876, and $2,299 for the TX-NR906, but we are sure you can find them for a lot less if you do a little shopping around. Be sure to also hit up our Onkyo TX-SR906 image gallery.