Source Audio Reflex - Expression Output Plug Configurations; Passive TRS (Tip Expression); Passive TRS (Ring Expression)

SA163 Reflex User’s Guide 23
Expression Output Plug Configuration
The three analog expression outputs on the Reflex are highly configurable. Three sets of DIP switches
mounted on the bottom panel of the Reflex housing allow for configuration of each of the expression
outputs.
Each DIP switch package contains 5 switches. There are a total of three DIP switch packages, one for
each of the three expression outputs.
Passive TRS (Tip Expression)
The most common expression pedal plug configuration is passive TRS with the expression signal on
the tip. Power is supplied externally on the ring contact, and the sleeve contact is ground. This
configuration requires a stereo (TRS) cable. This configuration can be found on products from
companies including Source Audio, Boss, Roland, Moog, Strymon and Behringer. In this mode, the
corresponding DIP switches 1 to 5 should be set On, Off, On, Off, Off, respectively.
Passive TRS (Ring Expression)
Passive TRS plugs can also be configured with the expression signal on the ring contact instead of the
tip contact. In this case, power is supplied externally on the tip contact, and the sleeve contact is
ground. This configuration requires a stereo (TRS) cable. This configuration can be found on products
from companies including Zoom and Korg. In this mode, the corresponding DIP switches 1 to 5 should
be set Off, On, Off, On, Off, respectively.
Sleeve : Ground
Ring : External Power
Tip : Exp
Passive
TRS (Stereo)
Tip Expression
ON DIP
1 2 3 4
5
Sleeve : Ground
Tip : External Power
Ring : Exp
Passive
TRS (Stereo)
Ring Expression
ON DIP
1 2 3 4
5