amoenus externus transforms your headphone listening into a natural speaker experience. Using a carefully tuned arrangement of 9 ultra-short delays, it recreates the acoustic perception of a classic stereo speaker triangle — placing the sound naturally in front of you, slightly outside your head, rather than inside it. No artificial reverb. No coloration. Just a more natural, fatigue-free headphone sound. Compatible with foobar2000 (v2.25+), AUM, GarageBand, and all AUv3-compatible hosts on iOS.