3 x Inputs8 x InsertsSelected Input parallel outputsPatchable SEND and RETURNBalanced signal path all the wayLeft - Right ReverseAbsolute Polarity ReverseBypass GAINS makes passive signal pathOver 90 nice relaysLotsa pretty EAO switch buttons that you can easily custom label4 x 24 position Grayhill switch attenuators for INPUT and OUTPUT GAINSSUM - DIFFERENCE (MS Matrix) for Inserts 2 & 3Separate SUM and DIFFERENCE outputsSWAP order button for Inserts 4 & 5MIX - FADE injection between 7 & 8 with mode selectExpensive Penny & Giles rotary fader/mixerELCO I/O Inserts connection system as standard (DB25 available as option)Bulletproof MANLEY build quality. But of course!