Barium Pair - because everyone wants two.Barium Pair is two of our Barium modules in a single product box.Reference Signal Meter Barium is available in two versions.* Barium (solo) is a single-channel reference bargraph meter with 20 LEDs* Barium Duo is a dual-channel reference bargraph meter with 2x 20 LEDs The bargraph meters have:* 42 dB range with peak hold* dBu and dBFS scale Due to it’s very precise calibration, Barium can be perfectly used as reference meter. As standard, the Barium meters are set to -18 dBFS = 0 dBuThis can be changed to -20 / -22 / -24 dBFS = 0 dBu, using the dip switch on the main PCB. Barium is a 20 LED reference bargraph meter in Octa and 500 series format.Barium can be inserted anywhere in the signal.Barium input is hard-wired to output.Your signal is not interrupted or coloured in any wayBarium Pair is two of the Barium (solo) modules in a single product box. Product page on the Interphase Audio website Barium is available with "Silver" or "Black" faceplate and can be used in the Octa Rack or in any 500-series rack. Video link:https://youtu.be/oDR9jXsB9Hk