GSX 1200 PRO Audio Amplifier with 7.1 surround sound and separate audio and inbound/outbound chat control..Hardware driven 7.1 Surround Sound.Ultimate audio control for ultimate collaboration.Built in DAC and EQ modes.Sidetone and adjustable microphone gain on amplifier.Adjustable reverb for personalization of audio.Dominate your game with the GSX 1200 PRO Audio Amplifier with 7.1 surround sound and separate audio and inbound/outbound chat control. With precise spatial awareness and positional gaming audio, team gamers can chain up to eight amplifiers together and lock down audio configurations for tournaments.