Audibox A range of ultra-compact signal processors: USB DI Bus powered USB audio In, transformer balanced L-R XLR Out USB DI-VC Bus powered USB audio In, transformer balanced L-R XLR Out with Output Volume Control USB I-O Bus powered USB transformer balanced audio In and Out, L-R XLR In and Out QSwitch Unique device that lets you switch one stereo input to any of four outputs, or vice versa Iso Balancer Dual channel unbalanced to balanced line converter Iso De-Balancer Unique dual channel balanced to unbalanced line converter from the Audibox range Iso Later Single or Dual channel transformer isolater Iso Optimizer Dual channel transformer isolated Level / Impedance Optimizer Iso Splitter Single or Dual channel one to two transformer splitter ISO Combiner Single or Dual channel two to one transformer combiner Audibox PSU Power supply for multiple Audibox units AV DI Dual channel Active direct box specially configured for AV applications Ear Driver Multi way Headphone amplifier Amp It Again Transformer variable impedance matching interface for recording/re-tracking Pro DI Single or Dual channel compact direct boxes  DI-6SM Six Channel Active Direct Box, Mic/Line Splitter and Line Mixer Balance 8 8 channel unbalanced to balanced converter DeBalance 8 8 channel balanced to unbalanced converter MaxiSPLIT: 2 in, 4 out/1 in, 8 out Line Distribution Splitter MaxiMIX: 4 in, 2 Out Line Mixer MIXX: 4 Channel Mic/Line Mixer with 3 way EQ MIXXMaster Multi Channel Mic/Line/Aux Master Mixer with EQ. Can be linked with multiple MIXXs or MIXXMasters as required BarMIX Easily mix microphone and up to 4 stereo audio sources to 2 zones EQ260 Dual Channel 30 band Constant Q Graphic Equalizer EQ130 Single Channel 30 band Constant Q Graphic Equalizer EQ215 Dual Channel 15 band Constant Q Graphic Equalizer