LOOP switch:
In the 4 loop modes, this switch will engage the loop either in latching or momentary
fashion depending on the selected mode. For latching purposes the action of this switch
is triggered when it is released. (your loop only starts when you release the switch)
TAP/MOM switch:
In the 4 loop modes, this switch is used to tap the tempo. As with the loop switch its
action is triggered on release. So if you are tapping to a beat, count your releases not
your presses. In the 4 hold modes it engages the effect momentarily while it is pressed.
EXP input:
Can be used to externally control the … control pot with an expression pedal. When an
expression pedal is plugged in, the control pot can be used to scale the range of the
expression pedal.
Most commercially available expression pedals using a ¼ ” TRS plug should work. The
value is not really critical, although I would not go lower than 10k.
Some examples are the
Moog EP-2, Roland EV-5, and M-Audio EX-P.
You need to use
TRS
plugs and cables.
NO MONO PLUGS OR CABLES!
These
will short out the voltage regulator inside the pedal and damage it.
Here is how such a TRS plug looks like.
The exp jack is connected to the pedal like this:
sleeve : ground
ring: 3.3V supply voltage
tip: controlling (varying) pin
If you really know what you are doing you can actually use a control voltage instead of a
resistance based controller. But you need to consider the connections and
never exceed
3.3V
. If you do you will damage the pedal. Just connect the sleeve and tip and leave the
ring unconnected (not shorted so don't use mono cables)
If you have any doubt when deciding what to connect to the expression input please
send me an email and I will verify that everything is safe.
Thanks :)
David
http://www.davidrolo.com
david@davidrolo.com