6
Vintage Vibe
Rev: 1.0
Wurly Amp Manual
MAY 2020
7. Aux Output Trim:
This trimmer, located on the amplifier PCB (VR4), sets the overall output level
available at the Aux Output jack prior to any Master Volume adjustment. Set
desired output level for interfacing to an amplifier, PA, DI, etc. This trimmer
should be adjusted only after having first set the Level Adjust Trim (VR3).
8. FX Loop (Optional):
The FX Loop allows the insertion of effects into the signal path within the
amplifier circuitry. The result is that the signals at the Aux Output and
Speaker/Headphone Output will both be affected accordingly.
The FX Loop jack is a 1/4" TRS normally closed insert jack. When no cable is
inserted the Send and Return are connected and signal passes through normally.
When a 1/4" TRS cable is inserted, this connection is broken and the signal flow
is as follows:
Tip = Send
Ring = Return
Shield = Ground
Utilizing either a Y/Insert Cable or appropriate breakout box, connect your
desired effects.
The FX loop is located prior to the tremolo circuitry.
