Pre-73 Mk III Be aware of the proximity

Be aware of the proximity effect (an increase in bass response) when the mic is close to the sound source)

The signal path uses only discrete components like resistors

External power supply to avoid interaction with the audio circuits and transformers

on stage and in broadcast applications

large capsule tube condenser microphone

Pre-73 Mk III Be aware of the proximityThe PRE 73 MKIII is a one channel vintage style microphone, line and instrument preamplifier. The signal path uses only discrete components like resistors, capacitors and transistors. The in and output is transformer balanced, using two different transformers, each one optimized for its purpose. This is the way audio components were built before integrated circuits became available. The circuit used in the PRE 73 MKIII is similar to the preamp section