1/2" and 1/4" preamplifiers are optimized for use with externally polarized microphones. They are compatible with all brands of microphones that meet IEC 61094 standard and connect to 200V power supplies via a 7-pin cable with LEMO® connector. Model 426A30 is a rugged 1/2" preamplifier. Model 426B31 is a 1/4" preamplifier with an integral 10 foot (3m) cable that terminates with a 7-pin LEMO® connector.
Compare models below.