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14 ADDITIONAL TOPICS
DIGITAL OUTPUT SOURCES
The FM9 can produce both USB and SPDIF digital output signals. USB is detailed in Section 3: USB
The SPDIF out can transmit your choice of signals derived from Output 1, Output 2, Input 1, or USB 7,8.
OUTPUT 1 - Outputs the signal from the OUT 1 grid block. This will be the most common setting, where the SPDIF
output is used instead of or in addition to the main analog outs. This might be used when connecting the FM9 to
the SPDIF inputs of an audio interface, digital mixing console, or other device.
OUTPUT 2 - Outputs the signal from the OUT 2 grid block. Use this option when you want a digital signal that
differs from the signal at analog output 1. This might be the case when you’re using a SPDIF send and return, or
when you want to use different processing options on analog and digital outs.
INPUT 1 - Outputs the signal from IN 1 instrument jack without any processing. Use this option when you want a
digital copy of the input for recording or reprocessing using a 3rd party device over SPDIF.
USB 7/8 - Outputs incoming USB 7/8 playback signals from a connected computer directly to the SPDIF Out.
WHAT IS SPDIF WORDCLOCK?
Interconnected digital devices require synchronized clocks to work correctly. Wordclock
makes this possible with the correct connections and settings on both the FM9 and the connected device.
WHEN USING THE FM9 SPDIF OUTPUT
When the SPDIF output of the FM9 is connected to the SPDIF input of another device, there are two options:
1) Use the FM9’s internal clock. Set SETUP: I/O: Audio: Word Clock to “INTERNAL”. Set the connected
device to use external clock and it should lock to the 48 kHz clock of the FM9.
2) Use the clock of the connected device: Set the external device to use its own internal clock. Connect a
second SPDIF cable from the output of the second device to the SPDIF input of the FM9. On the FM9, set
SETUP: I/O: Audio: Word Clock to “SPDIF”. A valid 48 kHz data stream must be present at the SPDIF input
for the FM9 to operate properly.
WHEN USING THE FM9 SPDIF INPUT
When the SPDIF output of another device is connected to the SPDIF input of the FM9, there are two options:
1) Use the clock of the connected device. Set the external device to use its own internal clock. On the FM9,
set SETUP: I/O: Audio: Word Clock to “SPDIF”. A valid 48 kHz data stream must be present at the SPDIF
input for the FM9 to operate properly.
1) Use the FM9’s clock. Set SETUP: I/O: Audio: Word Clock to “INTERNAL”. Connect a second SPDIF cable
from the output of the FM9 to the SPDIF input of the second device. Set the connected device to use
external clock and it should lock to the FM9’s 48 kHz clock.
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