I’m playing a gig tonight in a pub with 2 4x12 backlines. Bought a baby bomb but it doesn’t work well with my Helix. I get cricket-like noise at ~2500 hz, happens even if helix is switched off. Nothing I can do to filter it out. Baby bomb works clean with other sources (guitar straight in, kotzen rk5) so seems to be a Helix interaction issue. Weird.