About H2 Audio
The H2 Audio Helios Channel (and the modular 0011 Series ecosystem) brings the highly coveted, legendary Helios recording architecture into modern rackmount and 500 Series formats.Built in Detroit by H2 Audio, these units recreate the exact circuits designed by Dick Swettenham—the iconic analog tone behind classic records by Led Zeppelin, The Who, The Rolling Stones, and Bob Marley at Olympic and Island Studios.