Expert Sleepers ES-3 and ES-6 ADAT Lightpipe/CV Interface Excellent Condition Posted on July 3, 2024 by admin Expert Sleepers ES-3 and ES-6 ADAT Lightpipe/CV Interface – Excellent Condition. ES-6 v2.2 (2020) and ES-3 v1.2. Excellent working condition, with power cables, cables to join both together and ADAT lightpipe cables.