As a member of a gigging band, travelling to all strange out-of-the way gigs, in dodgy venues and pubs, the perennial problem of trying to connect to the house PA is a constant PAIN. Until you arrive, you have no idea what the PA is like. We use our own mixer amp, with our saved settings, and generally use the house speaker system. These Neutric adaptors are the business. We can now connect to whatever we find at the gig, jack to jack, jack to Neutric, Neutric to Neutric. We are ready for all of them. Highly recommended. Don't go anywhere without them.