You have the decoder either before or in the preamp. If it is before you will need to run an all analog connection after that so you will need a lot of interconnects = expensive, even at $15 a pop for ...
Mathias Poets and Alex Poets have reimagined the analogue guitar pre-amp and have created the aptly named poets One. Which is taken to Kickstarter this week to raise the €20,000 the team require to go ...