The Sound of Shadows (SoS) is a voltage-controlled (VC) digital delay module based around the PT2399 echo IC from Princeton Technology – which was, by the way, originally designed for Karaoke equipment.

As with all f(h) products, the SoS was engineered towards maximizing functionality while keeping cost as low as possible. If some aspects of the unit seem awkward, it is most likely due to this. The goal is to make unique, useful, enjoyable, and affordable instruments, not just hoover out your bank account.

And remember: every instrument has its quirks and unexpected aspects, so RTFM! All the way through! Specific quirks are mentioned in the description of the particular feature they apply to, so please read this through before emailing!

Difference in v3 from v2:

• Removed VCA
• Chainable rear header
  • Delay out
  • Insert in (Similar to using the insert jack but bypasses the Insert pot. Goes through feedback gain cell before entering delay.)
  • Delay in (Equivalent to Using the Input jack, no attenuation.)
• Added +5V source selection jumper (board/bus) and changed to full 16-pin power header.