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HomepageMic Preamps500 Series Preamps › AnaMod Realios A9033
AnaMod Realios A9033

The Realios A9033 is an all discrete transistor design microphone preamplifier, for the 500 series racks. Extremely open and uncolored preamp.

A clipping problem arose one day while recording a really loud vocalist singing through a U47 microphone. The problem was assumed to be the clipping of the microphone since every mic preamp in the studio also was clipping in this signal chain.

Upon further measurement it was determined that the U47 output was not clipping, it was outputing a signal of -15 dBm. Too much output for most mic preamps.

The solution was the A9033. This microphone preamp was designed for this situation. However, the added benefit of passive voltage gain possibly makes this the most transparent and open sounding microphone preamp ever.
  • Passive transformer gain
  • Switch for phantom power
  • Phase reverse switch
  • 20 dB mic preamp
  • All voltage gain from transformers
  • All discrete / class A
  • Input and output transformers
  • No negative feedback
  • Extremely open and uncolored
  • Single-space 500 series rack format
  • Specifications
  • Microphone Input Impedance: 1.2K, balanced
  • Output Impedance: less than 50
  • Max. Output Level: +32dBu, transformer balanced
  • Gain: 5 to 20 dB in 3 dB steps
  • Frequency Response: +/- 1 dB from 7Hz to 85kHz
  • Noise Level: better than 86dB below +4dBu, 0-30kHz
  • Reviews
    Free shipping in Canada. Conditions
    Additional information
    For more information about the Realios A9033, please visit the website of AnaMod
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