EFX MK-VI Audio Controller Owner’s Manual
5
1.5 Rear Panel
IN
This is the main input jack where your guitar plugs in.
TUNER
This jack is for connecting an external tuner.
SND 1~11 and RTN 1~11
These jacks provide mono-send/mono-return effect loops. SND 1~11 send signals to effect pedals. RTN 1~11 receive
signals from effect pedals. Connect the SND 1~11 jacks to the INPUT jack of each effect pedal, and connect the
RTN 1~11 jacks to the OUTPUT jack of each effect pedal. The SND 6 is a buffered signal.
This is useful for connecting a volume pedal or for maintaining impedance in your system.
Refer to the 1
1.3 Block Diagram on page 4 of the manual.
SND 12, RTN 12L and RTN 12R
These jacks provide a mono-send/stereo-return effect loop. This loop can be used at the beginning of the stereo
signal chain. It is possible to set whether the return of the loop 12 is mono or stereo.
Refer to the 4
4.5.2 Audio > Lp12 Rtn on page 27 of the manual.
OUT L and OUT R
These are the output jacks. OUT L and OUT R can be turned on/off independently. If the last stage of the chain is
the mono output, the OUT L signal is split up in to the OUT R.
ISO OUT and ISO OUT PHASE switch
There is an isolation transformer before the ISO OUT jack. The isolation transformer may help reduce hum that can
occur when using two amps or 4CM. If the ISO OUT are used, ISO OUT can also be inverted the phase by
pressing the ISO OUT PHASE switch. Refer to the 4
4.5.2 Audio > Iso-Out on the page 27 of the manual.
F1/F2 and F3/F4
Latched or momentary function switch jacks for amplifier channel switching or on/off controlling of reverb.
Each function switch can be assigned to the BPM tempo. Refer to the 4
4.5.2 Audio > Func1~Func4 on the page 27
and 6
6.2 Function Switches on the page 32 of the manual.
XPDL
An expression pedal or 2 external foot-switches(normally open type) can be connected to this jack using a 1/4” TRS
cable. The TRS cable must be connected before supplying power to the EFX MK-VI. Refer to the 6
6.1 XPDL on the
page 32 of the manual for cabling.
USB
This USB connector is used to connect this device to your PC or MAC to send and receive data or to update the
firmware. No driver installation is required because EFX MK-VI's USB uses the HID class or USB Audio Device.
MIDI IN and MIDI OUT/THRU
MIDI IN connector receives MIDI signals from an external MIDI device. MIDI OUT/THRU connector is used to feed
MIDI signals to external MIDI devices. When the MIDI OUT/THRU has been set to 'THRU', MIDI signals received at
MIDI IN pass through the EFX MK-VI without any changes.
Refer to the 4
4.5.1 MIDI > IN/OUT/Dup.PC on the page 25 of the manual.
