Originally posted by travlin'easy:
Most keyboards with a 1/4-inch input will accept a balanced connection via an adapter cable and not experience any decrease in either volume level or vocal quality. The right cable for the job has pins 1 and 2 of the XLR jumpered and connected to the 1/4-inch plug's shield, while pin 3 is the hot connection and connects to the 1/4-inch plug's tip.
Sorry Gary, got to disagree..the audio inputs that some keyboards have are line level (whether balanced or not) not mic level which is different. The keyboards with either a 1/4" balanced jack or XLR which are SPECIFICALLY for microphones also have mic pre-amps. On the the wiring point, the wiring for a balanced connector is pin 2 + pin 3- and pin 1 is shield.If you are adapting to a mono lead, pin 2 goes to the tip of the 1/4" and pins 1 and 3 are bridged and connect to the sleeve. Where international standards differ is on the wiring of speaker cables which only use 2 of the pins in an xlr cable, but which two varies from country to country.Its just one of the reason Speakon connectors been widely adopted all over the world for most pro PA suppliers.
Dennis
Previous Topic
Index
