Wohler amp1-vs SDI audio mointor unit in 1RUrackcompact, High Quality, 4 Channel, SDI Self-Powered Speaker SystemNOTe will only accept SDI video in and monitor the embedded audio from the SDIvideo signal.(can monitor any fo the 4 channels in the groupwill convert embedded audio from SDI into analog out and also balanced out audioPRICEis for 1 unit,from wohler belowFEATURES:Full Fidelity Audio Monitoring in only 1U of rack spaceListen to 2 SDI Channels, Monitor and Convert 4 Channels Simultaneously1 SDI Input (Both Sub-Groups of Group One)SDI Audio Groups 2-4 Selectable via Internal Jumper1 Reclocked SDI Output4 Balanced Analog Outputs Demuxed from SDI Group OneBalanced Analog Output of Selected SourcePowerful 98dB SPL at 2 feet (0.6m)Four 26 Segment Tri-Color Level Meters Displaying Simultaneous VU & PPMPremium Quality Drivers & Power AmplifiersExtended Frequency Response and Low DistortionFocused Sound, Reduces Adjacent Bay CrosstalkAudible Indication of Phase/Polarity ProblemsInnovative LED Display of Phase/Polarity RelationshipsThorough Magnetic Shielding for Placement next to Video MonitorsHeadphone Jack, Mutes SpeakersBlowout Proof SpeakersQuick and Simple Installation