The Onkyo TX-NR807 is one of the first receivers to incorporate Audyssey DSX technology, which allows the back surround channels to be retasked for front-wide speakers to expand the width of the sounds stage, or for front height speakers to provide vertical ambience effects.

ENGADGET: Onkyo TX-NR807 and TX-SR707 receivers keep the updates rolling

Where Jeremy rides near vertical, previously untracked lines into the Alaskan backcountry, Mark surfs waves of a bone crushing height that scare most.

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Meanwhile, the product's gyroscope sensor gauges height, rotation and slope to optimize sound quality, whether the soundbar is placed in a horizontal or vertical position.

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