The Front Panel includes the input connectors for Mic, Line and Instrument signals, as well as
the input gain and monitoring controls.
1. Inputs 1 & 2 – Combo XLR input sockets - connect microphones, instruments (e.g., guitar)
or
line level signals via XLR or ¼” (6.35 mm) jacks as appropriate
2. Gain 01 and Gain 02 - adjust the input gain for input signals on inputs 1 and 2 respectively. The
gain controls have concentric bi-colour LED ‘rings’ to confirm signal level: green indicates an
input level of at least -24 dBFS (i.e., ‘signal present’), the ring then turns red when signal level
reaches 0 dBFS
3. 48V - phantom power switch for mic inputs - enables +48 V phantom power at the XLR contacts
of both Combo connectors
4.
LINE/INST - Line / Instrument level switches for each input – switches gain to suit instrument
or line level signals
I did make a mistake:
. . . There is no "Mic" switch;
. . . The "Line/Inst" switch should be in the "Line" position.
There is no hint, in anything on the Focusrite website, that the ADC's in the 2i2 are different than the ADC's in the 4i4. The 4i4 gets you more inputs, but for this P125 connection, you don't need them.
. Charles
