•
# Group: The input gain controls of adjacent odd-even channels are adjusted simultaneously. Any level offsets that
exists before inputs are grouped will be preserved after a group is chosen.
•
High-Pass Filter: Use this button to engage an 80Hz, 12dB/octave high-pass filter on the input
•
# Insert: When engaged, the signal to the Insert Return DB25 port is routed to the A/D conversion circuit.
* NOTE that the Insert Send is always active and thus may be used as an analog direct out.
7.
Digital Reference - Sets the resulting digital level when an analog signal at the specified level (+4dBu or -10dBV)
is connected. Most Apogee devices default is -16dBfs. Command-click to set all channels simultaneously.
*
Note: It’s best to set the Digital Input Reference level at the same settings as the Digital Input Reference level, to preserve
unity gain through the system.
8.
Optical Format - Set the Optical Input ports to be either ADAT/SMUX or S/PDIF Optical.
•
SPDIF : The two-channel SPDIF audio format is capable of utilizing a maximum sample rate of 96kHz.
•
ADAT/SMUX : The multi-channel ADAT or SMUX format is capable of 8 channels of digital I/O at sample rates 44.1kHz -
48kHz, and 4 channels of digital I/O at sample rates 88.2kHz - 96kHz.
I/O Channel Section - OUTPUT
This portion of the Primary Window displays Channels for Analog Output, Digital output, and the Source of the output
signal.
1.
Hardware Output Label - Indicates the analog or digital hardware output
2.
Output Channel Level Meter - Shows the digital signal level before the D/A conversion
3.
Output Icon - Indicates which outputs volume level is controlled by the Main Output volume control, and which
are fixed-volume line-level outputs.
4.
Analog Level - Set the Analog output level for each channel. Match this level with the analog gear to which
Symphony I/O Mk II is connected.
•
Choose +4dBu when connecting to professional line level equipment
•
Choose -10dBV when connecting to “semi-pro”, hi-fi, or consumer equipment
5.
Output Trim Control - Use to adjust the analog output stage for precise calibration.
Option+click to reset to 0. Command+click to reset all channels to 0.
6.
Output Digital Reference - Set the output digital reference level. In most cases, the output digital reference level
should be set to the same as the input digital reference level. Most Apogee devices default is -16dBFS.
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