Amplifier Technologies, Inc., often referred to as ATI, gained itself quite a reputation for its differential drive audio amplifiers back in the day. No-frills industrial design, good circuit topology and fair pricing really helped it secure a spot in many internet savvy audiophile systems. The company has updated its AV processors for 7.1-channel operation with its ATP6700, ATP7700 and ATP8700. Each model includes a LCD panel up front and, naturally, 7.1 channel inputs around back. One feature hasn't been updated, though -- like so many smaller manufacturers, HDMI connectivity is missing (read: no Dolby TrueHD or DTS HD MA). We're willing to give up the convenience of HDMI, but it's a sad day when companies that have made their name by delivering high performance audio aren't able to support the highest resolution format available. But if audio performance of the older formats is your uber alles, consider the ATP6700 ($2995), ATP7700 ($3995) or ATP8700 ($5995).