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11. USB LED - this LED illuminates when the unit is recognised by the computer to which it is connected.
12. MIDI IN/OUT LEDs - these LEDs illuminate when MIDI data is received from/transmitted to the MIDI port.
13. PRESET - this push-encoder allows you to browse between AmpliTube’s presets. This control can also be
customized to send any MIDI CC to control other functions or other software.
14. MONITOR - the Monitor knob allows you to blend your input signals with the playback streams from your
computer. This allows you to monitor your input signal with zero latency. If the knob is positioned at 12
o’clock, the input signal and the playback stream will be equally balanced. Turning the knob to the left will
increase the level of the direct signal; turning to the right will increase the level of the playback stream from
the DAW. This control works both for Outputs 1-2 and Heaphones.
15. HEADPHONES - connect one pair of headphones at the 1⁄4” (6.35 mm) TRS jack sockets below the
headphone volume controls. The headphone outputs always carry the signals that are currently routed to
outputs 1 & 2.
16. MASTER - main output level control – this control adjusts the level at Outputs 1 and 2 on the rear panel.
17. AMP OUT - this is a fifth 1/4” physical unbalanced, floating output with selectable ground lift (controlled with
software). It’s independent from main Outputs 1-2 and 3-4. This output is specifically designed to allow the
interface to feed guitar amps or stomps without the typically associated risk or hum or buzz noises caused
by ground loops or mismatched levels and impedances.