User Manual Integra DRX3.4 9.2 Channel Network AV Receiver

Integra is a subdivision of the Japanese manufacturer Onkyo, making a complete line of electronics consisting of home theater receivers or AV receiver, CD player, DVD player and Blu-ray player.

To recap: a 9.2. 1 system has three speakers in front, two on the sides, two in the rear of the room, and a pair in the ceiling. Plus two subwoofers, which are typically in the back, but can go anywhere. (You'll need a receiver with 9 channels or more to power a system like this.)