L R AUX 1 AUX 2 AUX 3 AUX 4 PFL +48V RECORD OUT PEAK MONO CHANNEL GAIN HPF MIC IN LINE IN + - + - PFL 3 BAND EQUALISER INSERT 100Hz LF HM MUTE FADER L INSERT WIRE PAD HF MAIN LR FADERS PAN L R INSERT MAIN OUT 0dBu NOMINAL AUX1 R AUX 2 AUX1 MASTER LEVEL AUX1 OUT AUX 3 SOLDER LINK AUX2 OUT ON STEREO RETURN PEAK STEREO CHANNEL LR R CHAN AUX3 OUT PFL MUTE 2 BAND EQUALISER FADER SUM SUM LF HF L ST1 2 & 3 STEREO GAIN PRIORITY SWITCHING R AUX 3-FX + SUM AUX 2 L-R PRE LR R USB RETURN METERS PRIORITY SWITCHING AUX 1 FX GAIN USB 1 STEREO I/O AUX 3 SUM + ON 2TRK RTN USB DEVICE AUX 1-2 AUX 1 STEREO CHANNEL 2 L EFFECTS SEND BAL + 13 GAIN L AUX 2 EFFECTS SEND CHAN PFL/AFL 2 TRK RTN 2TRK RTN EFFECT TYPE USB RTN 2 TRK RTN TO MONITOR SELECTION USB RETURN STEREO CHANNEL 3 L EFFECTS PROCESSOR ON REC OUT GAIN R PHONES LEVEL BANK DSP SEL UP PFL ACTIVE PFL ACTIVE SEL DOWN LR TAP/PARAMETER MIX POST MONITOR HEADPHONES CHAN ALT LEVEL PFL USB RETURN FROM COMPUTER STEREO RECORD OUT AUX 1 STEREO EFFECTS CHANNEL L ALT OUT L MUTE + EXT FX IN R FOOTSWITCH ALT OUT RECESSED SWITCHES TO ALT OUT AUX 2 SUM + R + SUM BAL SUM + MONO OUT Allen & Heath BLOCK DIAGRAM AUX2 MASTER LEVEL FX STEREO CHANNEL 1 ZED-12FX & 22FX User Guide ZED 12FX & 22FX BLOCK DIAGRAM GLOBAL 48V SWITCH PP