API 512c Discrete Microphone / Line Preamplifier Large Diaphragm Condenser Mics maybe also the Mono button

maybe also the Mono button

"Passive" refers to the tone shaping part of this clever new EQ design not using any active circuitry

Purple Sweet 10

you want the API 560

API 512c Discrete Microphone / Line Preamplifier Large Diaphragm Condenser Mics maybe also the Mono buttonAPI 512C Discrete Mic Line Pre Offering low noise ( 129 EIN) and 65 dB of gain, the 512c includes phantom power, and switchable polarity, 20 dB pad and Mic or Instrument Line selector. Front panel XLR and 1 4 inch connectors combined with rear panel mic access allows for additional flexibility when installed into an API lunchbox, API's 10 position 500V vertical rack, or an API console. The API 512c remains faithful to the circuit designs of API's