Modal Electronics COBALT8X, User Manual

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02

Connections

Headphones

Headphone output on 1/4” stereo/TRS 
jack. The volume can be adjusted using 
the VOLUME knob or the dedicated 
Headphone Level control on the screen.

The headphone output will match the 
audio output so it can be either stereo 
or mono depending on the current 
audio out configuration.

Line Out

Line level stereo outputs on 1/4” TS 
dual-mono jacks. The left jack only will 
break the stereo circuit and collapse 
the signal to mono. These outputs can 
be connected to any line level input 
for monitoring and recording. The 
line output is higher quality than the 
headphone output, so always use it 
when recording or performing. The 
Line out level can be adjusted using the 
‘Volume’ knob. 

Expression Pedal over standard 1/4” 
stereo/TRS jack from an external 
expression source.

COBALT8X works best with expression pedals that use 
the TRS polarity and have a resistance of 10k or above. 
However COBALT8X has a software configuration option 
for providing basic compatibility with RTS polarity pedals 
as well as for improving the compatibility with different 
resistances.  If your expression pedal has a polarity switch 
we recommend setting it to the ‘TRS’ polarity (the default 
setting on most pedals). For setting maximum compatibility 
with your expression pedal’s polarity and resistance value, 
please see the ‘Settings - Pedal Type’ section. If you are 
unable to configure COBALT8X to work adequately with 
your expression pedal, you may need to use a TRS Polarity 
Adapter. Please note that expression pedals with the TS 
polarity will not work with COBALT8X.

Audio In

Audio Input on 1/8” stereo/TRS jack.

Sustain Pedal over standard 1/4” mono/
TS from an external sustain pedal.

Note: COBALT8X supports both types of sustain pedal 
polarities. “Positive / Normally Open” pedals can be 
connected / disconnected whilst COBALT8X is powered 
on, however “Negative / Normally Closed” pedals must be 
connected before powering on the device and disconnected 
after powering off the device in order to work correctly. 
If your sustain pedal has a polarity switch we recommend 
setting it to the “Positive” polarity. If you are unsure of your 
pedal’s polarity type, it is recommended to only connect / 
disconnected the pedal whilst the device is powered off.

Clock Sync (In, Out)

Clock Sync In / Out on 1/8” mono/TS 
jack. Simply plug into your clockable 
gear as desired. (See the Sync section)

Power

Power switch for COBALT8X. Power 
via DC-9.0V - 1.5A center-positive PSU 
(supplied)

USB MIDI

COBALT8X is a class compliant USB 
MIDI device and connects to a USB host 
via USB B Connection for MODALapp 
communication, MIDI input and MIDI 
output. Simply connect COBALT8X to a 
USB socket, such as on your computer 
or tablet with a standard USB cable and 
find ‘COBALT8X’ listed as a MIDI port 
on your computer or tablet.

MIDI (In, Out) 

MIDI In / Out on MIDI 5-pin DIN 
cable. These outputs can be used 
to communicate with any other 
MIDI devices. The MIDI Out can be 
set to Thru using MODALapp or 
MODALplugin (See the MIDI section)