These cables break out from the 25, 37 and 54-pin connectors widely used by sound re-inforcement and broadcast facilities companies. They are completely compatible with similar connectors from other manufacturers. All three types use individually jacketed Canford cables - 25-pin use SQJ-E8 starquad, 37-pin use SQJ12 starquad and 54-pin use HSJ16. XLR connectors are Neutrik NC3FXX and NC3MXX.
Manufactured by Canford. Other variations of connectors and lengths are available to special order.