$39 USD (shipping included) while quantities last. Use contact form to request item.
Available as a DIY project, mount the included parts in any enclosure you want. I will include a pre-wired circuit board, spring and hooks, as well as a contact microphone.
Place the box in direct contact with a live instrument (e.g. piano, percussion) or open the lid while the unit is powered and gently pluck/play the spring for experimental sounds.
This project includes a pre-existing preamp design by Alex Rice and layout by Zach Poff that is distributed under a Creative Common’s ShareAlike license.
Transducer: Piezo disc
Required: 48 V phantom power mixing desk or interface
Spring Box recording with Kalimba instrument