DESC: The Onkyo HT-SR800 7.1 home theater system provides cutting edge surround sound performance while uniting all your high definition components through one powerful receiver. An HDMI pass through allows you to connect two digital sources simultaneously and each port is 1080p compatible to accommodate your premium high definition content. The HT-SR800 utilizes Audyssey 2EQ auto room calibration that detects the dimensions of your living room and speaker placement and makes all the necessary adjustments for optimal audio performance.