2-channel Stereo Instruments: Loudness (Sum, Num), LRA, Moving Coil (BR IIa: L, R), Correlator, Vectorscope, Gain Reduction, Global Keyboard [...] 2-channel Stereo Instruments: Loudness (Sum, Num), LRA, Moving Coil (BR IIa: L/R, M/S), Correlator, Vectorscope, Gain Reduction, Global Keyboard [...] 2-channel Stereo Instruments: Loudness (Sum), PPM, LRA, SSA Licenses: SW20002: Loudness SW20004: SSA SW20006: Premium