8
Hardware Features
Front Panel
24
5 5
4 2
6
7
The front panel includes the input gain controls and input connectors for Mic, Line and Instrument
signals for both channels, and also the monitoring controls.
1. INPUTS 1 & 2 – Combo XLR input sockets for each channel - connect microphones via an
XLR connector, or instruments (e.g., guitar) or line level signals via ¼” jacks. Either TRS
(balanced) or TS (unbalanced) jack plugs can be used for instruments or line level signals.
2. 48V – two switches enabling 48 V phantom power at the Combo connectors’ XLR contacts for
mic inputs 1 and 2. Each switch has a red LED to show when phantom power is enabled. Note
that not all microphones require phantom power. If you are unsure whether your microphone
needs it to work, please read the microphone documentation.
3. Gain 1 and 2 – two rotary controls: adjust the input gain for the signals at Inputs 1 and 2
respectively. The gain controls have concentric bi-colour LED ‘halos’ to conrm signal level:
green indicates an input level of at least -42 dBFS (i.e., ‘signal present’), the ring then turns
orange when the signal level reaches -6 dBFS, and red at 0 dBFS.
4. INST – two red LEDs which illuminate when Instrument mode is selected for the jack Inputs
1 or 2 from Focusrite Control software. When Instrument mode is selected, the line input is
converted to a high impedance unbalanced input. You can connect instruments via a 2-pole
(TS) jack plug here.
5. AIR – two yellow LEDs which illuminate when the AIR function is selected for each input
from Focusrite Control. AIR modies the frequency response of the input stage to model the
classic, transformer-based Focusrite ISA microphone preamps.
6.
(USB active) – a green LED which illuminates when the unit has established a connection
with the host computer to which it is connected.
7.
(Locked) – a green LED which conrms clock synchronisation, either to the Clarett 2Pre
USB’s internal clock or to the external digital input.
8. MONITOR – main monitor output level control – this control will normally control the level
at the main monitor outputs on the rear panel, but can be congured in Focusrite Control to
adjust the level of either or both pairs of analogue outputs.
9.
(Headphones) – connect a pair of stereo headphones at the ¼” TRS jack socket below
the control. The headphone output always carries the signals currently routed to analogue
outputs 3 and 4 (as a stereo pair) in Focusrite Control.
10. POWER – green LED conrming DC power is connected.
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General
Weight and Dimensions
