Bumping this old topic. I picked up a used FXBox on a whim for super-cheap, and the Synthbox firmware has really blown me away. It can load very high-resolution wavetables output from Serum (personally, I’m using the Galbanum Architecture Wavetables), and it sounds better than the other Euro wavetable options that I’ve used.
Most pertinent to this forum: It integrates extremely well with Monome gear, as it has four voices that take in CV and Gates (along with 3 modulation signals per voice). That means that Kria and/or Teletype are perfect partners for sequencing it. I just started my experiments with this, so hopefully I come up with some audio that I’m happy enough with to share. It just seemed crazy that this isn’t a more popular combo with the Monome modules!