Focusrite Scarlett OctoPre Dynamic, Руководство пользователя

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5
Hardware Features
Front Panel
9 13 12 10 11 14 14
1
5 7 6
8 2
3 4
All operational controls and metering for all eight channels are on the front panel.
1. Input gain controls 1 to 8 – eight rotary controls: adjust the input gain for the signals in
Channels 1 to 8 respectively.
2. O/L – each input channel has a red “overload” LED; this illuminates if the signal level causes
clipping at the input to the compressor section. If this occurs, reduce the gain so that the LED
stays off.
3. INST 1 and INST 2 – two latching switches put Inputs 1 and 2 into “Instrument” mode. When
INST is selected, the gain range and input impedance are altered (relative to LINE), and the
input is made unbalanced. This optimises it for the direct connection of instruments via a
2-pole (TS) jack plug. When INST is off, the inputs are suitable for the connection of line level
signals. Line level signals may be connected either in balanced form via a 3-pole (TRS) jack
or unbalanced, via a 2-pole (TS) jack. Each switch has an adjacent green LED to confirm
selection.
4. MIC 48V (1-4 & 5-8) – two latching switches, each enabling 48 V phantom power at the XLR
contacts of four inputs: Channels 1 to 4 and 5 to 8 respectively. Each switch has an associated
red LED indicating that phantom power is selected.
5. COMPRESS 1 to 8 – activates the compressor section of each channel, and sets the threshold
level. See “Compressor” on page 10 for further details.
6. COMP – a yellow LED which illuminates when the compressor section is applying gain
reduction. The LED also blinks briefly when the COMPRESS control [5] is moved from its OFF
position.
7. MORE – a latching switch that increases the ratio of the compressor, thus applying more
gain reduction at the same setting of the COMPRESS control. An adjacent red LED confirms
selection.
8. Input signal level meters: eight LED bargraphs, one per channel. The input signal in each
channel is metered post the input gain control and post the compressor section, so you can
see the level being sent to the output.
9. SAMPLE RATE – a soft switch which steps through the six available sample rate settings,
the current rate being indicated by one of the adjacent green LEDs. The sample rate in use is
stored in memory so that it is retained when the unit is switched off.