Featuring 64 gold-plated XLR microphone connectors wired in parallel, with the 64 connectors switchable to the MAIN OUTPUT and ISO1/ISO2 isolated outputs, which respectively use W456-pin gold-plated multi-core connectors; it is equipped with premium LUNDAHL transformers, while the rack is made of durable metal and the rear cover is also made of durable metal to provide protection and isolation from external interference, and it includes a 64-channel multi-core cable quick-release/quick-connect system, backed by plug-and-play quality assurance, with the MAIN OUTPUT and ISO1/ISO2 protected by kick-proof boxes.