4Description:Are you looking to route HDMI and 5.1/7.1 LPCM Audio to yourexisting Surround Sound System? The HDMXA71 switchroutes both HDMI and 5.1/7.1 LPCM (8ch.) Analog Audio.Perfect for systems using PS3 or DVD players with internalLPCM decoding on HDMI. The 4x2 can take the decodedLPCM from the PS3 and convert to 5.1/7.1 (8ch.) Analog Audiofor easy integration with your high end 5.1/7.1 audioreceiver/amp. In addition, an Auxiliary 5.1/7.1 (8ch.) audio Inputallows you to connect a second Analog 5.1/7.1 source to yoursurround system.Features: 1080P, 3D support 4 HDMI inputs, 2 HDMI outputs 5. 1/ 7.1 LPCM Analog audio output (8ch.) -Note 1. Aux 5.1/7.1 analog Input port (8ch.)- Note 2. Optical Toslink Digital Audio Output. Supports high resolution video 480 P, 720 I/P, 1080 I/P Seamless integration with your existing Audio Receiver. Remote Control (IR) included. Discrete Code allows directchannel control. 1RU rack mountable. Wired IR port for In-cabinet installations. RS232 port for PC or Control System operation. USB service port for EDID or code customizationNote 1: You must set your PS3, or source to LPCM decoding mode in order to use the7.1 Analog Audio Output from HDMI.Note 2: Aux Input port allows connecting a 2nd analog audio source and "loop thru " tothe Analog Audio Output. Does not convert Analog Audio to HDMI .