RCA

Phono termination for DJ and playback rigs: Seetronic’s MT380 range of RCA cable connectors, with male plugs in black (MT380) and red (MT380-2) plus the MT390 female cable-mount socket for extending or repairing leads.

These are cable-mount connectors with gold-plated contacts in a zinc alloy shell, taking cable from roughly 3.5mm to 6.5mm outside diameter, so they suit the coaxial stock normally used for unbalanced interconnects. Colour-coded shells keep left and right identifiable at both ends of a lead without resorting to tape or sleeving. Phono connections are unbalanced, so keep runs short and route them away from mains looms to avoid hum; they belong on DJ mixers, turntables and consumer playback sources rather than long balanced ties, and the female connector earns its keep when a damaged inline socket would otherwise mean binning the whole cable.

RCA Connector FAQs

What are cable-mount RCAs for? Building and repairing phono leads, MT380 males in black and red keep channels identifiable, and the MT390 female extends runs without adaptors.

Gold contacts worth it? On connectors made and remade in booths, yes, corrosion resistance keeps unbalanced signals quiet.