Hardware Features; Front Panel; Front Panel Sections - Focusrite Isa Two FA0540-01 User Manual

HARDWARE FEATURES

Front Panel

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1. Input switch: selects the input source (mic, line or instrument)
2. Gain control: sets the gain of the input signal in stepped values of 10 dB
3. 30-60 switch: selects the range of the Gain control (0 to +30 dB, or +30 to +60 dB). The default
range is 0 to +30 dB
4. Trim control: allows an additional 20 dB of gain to be applied to a mic/line-level signal, or can
be used as a gain control for the Instrument Inputs
5. Phantom power switch: supplies +48 V to the corresponding mic input on the rear panel
6. Z In switch: sets the mic input impedance to 600 Ω (Low), 1.4 kΩ (ISA 110), 2.4 kΩ (Med) or
6.8 kΩ (High)
7. Phase switch: inverts the phase of the signal
8. Filter switch: activates a high pass filter (HPF)
9. Filter control: selects the frequency of the high pass filter between 16 Hz-420 Hz
10. Insert: allows the signal to be sent to additional external processors (via the send and return
connectors on the rear panel) prior to the output
11. Peak LED meters: show the main output levels in dBFS
12. Instrument Inputs: for connecting high impedance instruments such as guitars

Front Panel Sections

Input (1)
Pressing Input steps through each of the three inputs, as indicated by the corresponding LEDs.
When the Mic LED is lit, the microphone input is active. An XLR input for a microphone, as well as
3-pole (TRS) ¼" inputs for line-level sources, can be found on the rear panel. A 2-pole (TS) ¼" input
for an instrument (DI) is available on the front panel.
Mic input gain (2)
With the mic input selected, the user has access to the full gain range in 10 dB steps from 0 dB to
+60 dB. The range of operation of the gain control is determined by the setting of the mic gain range
switch (3) - see following page:
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