Retro Mechanical Labs - Guitar Pedal Interface


Using the GPI, you can integrate effect pedals into your modular setup. The circuit features adjustable attenuators for lowering audio levels coming from the Eurorack system. After signals are processed by the connected pedal, you can reintroduce them to the GPI and therefore to the modular world. Thanks to the GPI’s two-channel design, the module is not only suitable for mono stomp boxes, but also stereo effects such as a delay or reverb. Synthesizers, drum computers and so forth can be connected as well.



The GPI is equipped with two identical channels for sending audio material from a modular system to effect pedals and vice versa. Alternatively, you can connect synthesizers, drum computers or line equipment such as a CD player to your Eurorack setup using the module.

Each send channel consists of a modular audio input, an adjustable attenuator and a guitar FX output. The returns feature a FX input, a non-editable gain stage and two modular outputs.


Per channel:
Modular audio input
Guitar FX output
Guitar FX input
Two modular audio outputs

3 HP Eurorack module, 6 HP wide
0.15 kg
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€ 19% VAT excl. €66.39 € 19% VAT incl. €79.00
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