The Allen & Heath DX164-W is a rugged 16-input 4-output expander designed for fixed installations and portable setups using SQ dLive or Avantis mixing systems. Featuring 16 high-quality XLR mic/line inputs and 4 XLR line outputs this compact expander can be wall-mounted or used on the floor offering flexible I/O expansion via DX protocol over Cat5e. Its robust design and EtherCon connections make it ideal for permanent AV installations in theatres schools venues and houses of worship. 16 XLR mic/line inputs and 4 XLR line outputs Compatible with SQ dLive and Avantis systems Wall or floor mountable for versatile installation DX protocol over Cat5e with locking EtherCon ports Designed for fixed installations and stage use Daisy-chain or connect via DX Hub for expanded setups Rugged compact metal housing