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(3.2) Rear Panel
1. Guitar Input (1/4” [6.35 mm], TS)
Connect your guitar to this input using a standard instrument cable.
2. Expression Pedal Input (1/4” [6.35 mm], TRS)
Connect an optional secondary expression pedal to this input using a standard instrument cable.
3. FX Send Output (1/4” [6.35 mm], TRS)
Connect this output to the input of another effects module, an effect pedal, or the effects loop return of an
amplifier.
4. FX Return Input (1/4” [6.35 mm], TRS)
Connect this input to the output of another effects module, an effect pedal, or the effects loop send of an
amplifier.
Note: If you want to use the FX loop with Mono devices, use a standard 1/4” TS instrument cable. If you want
to use the FX loop with Stereo devices, use a 1/4” TRS instrument cable, such as a 1/4” TRS to Dual 1/4” TS
Splitter cable. If you are using the FX loop in Stereo, you will also need to enable the Stereo FX Send and/or
Return in the (4.18.2) Global Settings > Audio menu.
5. Outputs (1/4” [6.35 mm], TRS)
Connect these outputs to the inputs of your amplifier, audio interface, etc. If you only need to use one output,
use the one labeled (Mono) L.
The Outputs can be set to amp level or line level in the (4.18.2) Global Settings > Audio menu.
6. Phones Output (1/8” [3.5 mm], TRS)
Connect standard 1/8” (3.5 mm) stereo headphones to this output. Use the phones volume knob to control
the volume level.
7. Aux Input (1/8” [3.5 mm], TRS)
Connect an optional audio source (e.g., smartphone, tablet, etc.) to this input using a 1/8” (3.5 mm) stereo cable.
Important: The audio signal from the aux input is routed directly to the outputs of HeadRush Flex Prime without
any modeling or effects applied, and cannot be used by the looper. It is also unaffected by the main volume
knob.
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