Best custom presets for Helix LT...? in Helix/HX Posted March 29, 2019 My favourists of those I have testet so far are the Fremen presets. Mostly I use a FRFR-amp or headphones. The presets sounds really good with my equipment. But it's difficult to say which are the best sounding custom presets, because another guitar or amp can completely change the sound and it may sound bad for you.