4 Microphone/Line combo inputs: XLR / 6.3 mm jack
2 Hi-Z instrument inputs: 6.3 mm jack
4 Line outputs: 6.3 mm jack
2 Monitor outputs: 6.3 mm jack
ADAT/SPDIF optical input and output
2 Stereo headphone outputs: 6.3 mm jack
Thunderbolt 3 connector (thunderbolt cable is not included)
Input for external power supply
Kensington Security Slot
Level Knob – The Level knob controls multiple functions. The knob’s current function is selected with the PREAMP and MONITOR buttons. When in PREAMP Mode, rotate clockwise to increase the amount of preamp gain for the currently selected input channel. When in MONITOR Mode, rotate clockwise to increase the monitor or headphones volume, depending on the stereo output currently selected with the MONITOR button.
Preamp Gain & Volume Level Indicator LEDs – The LEDs surrounding the Level knob indicate the relative level of the selected function (either input channel preamp gain or monitor/headphone volume)
Channel Selection Indicators – The currently selected input channel is indicated by the lit channel name (CH1, CH2, CH3, or CH4) above its input meter.
Input Meters – The four input meters display signal levels for each of the analog input channels.
Input Source Indicators – These indicators show which input source jack (MIC, LINE, or HI-Z) is active for the selected input channel.
Selected Stereo Output – These indicators display which stereo output (MONITOR, HP1, or HP2) is currently selected for volume control with the Level knob.
Stereo Output Meters – These meters display the main stereo signal output bus levels
Options Display – This panel displays the state of the preamp and monitor options, which are controlled by the six Option Buttons.
(a) INPUT Select Selects the active input source jack for the currently selected channel. The current selection is displayed by the Input Source Indicators.
(b) FILTER Enables a low cut (high pass) rumble filter with a cutoff frequency of 75 Hz.
(c) +48V Enables +48-volt phantom power for the mic input. Phantom power is typically needed for condenser microphones.
(d) PAD Attenuates (lowers) the XLR mic input signal level by 20 dB.
(e) POLARITY Ø Inverts the polarity (aka “phase”) of the input signal.
(f) LINK Links input channels 1 and 2 as a stereo pair.
(g) TALK Activates the built-in talkback microphone and the DIM function.
(h) DIM Reduces the monitor output volume level. The amount of DIM attenuation is set in the companion Console software.
(i) ALT (Alternate) Switches the main monitor mix to an alternate set of outputs
(j) FCN (Function) This switch can be assigned to control one of three monitoring functions.
(k) MONO Sums the left and right signals of the stereo monitor mix into a monophonic signal.
(l) MUTE Mutes the monitor outputs.
PREAMP Button – Press this button to enter PREAMP Mode and activate the input channel controls. Press again change the selected input channel.
Option Buttons – Each of the six Option Buttons has dual functions. In Preamp mode, the buttons control the preamp options for the currently selected input channel. In Monitor mode, the buttons control the monitor and headphone options. The individual options for both modes are detailed in this section.
Monitor Button – Press this button to enter MONITOR Mode and activate the monitor and headphone controls. Press again to change the currently selected stereo output so it can be adjusted with the Level knob.
Dimensions (W x H x D): 280 x 130 x 200 mm
AC Requirements 100V – 240V AC, 50 – 60 Hz
DC Connector Type Male plug, 2.1 mm x 5.5 mm, center positive
DC Requirements 12 VDC, ±5%
Maximum Power Consumption 19 Watts (when portable host computer not charging)