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DiGiCo Presenting New John Stadius Mic Pre-Amp At Prolight + Sound

New 8-channel, 32-bit SD mic pre-amp card offers a dynamic range of 123dBA and dedicated analog low noise linear power supplies with +48V phantom power.

By PSW Staff April 6, 2017

John Stadius mic pre-amp from DiGiCo

Twenty years ago, converters changed from 16 or 18-bit to a new, improved resolution of 24-bit. This additional 8 bits of converter resolution was instantly audible and created a demand for 24-bit quality.

At Prolight + Sound 2017, DiGiCo is showing and, more importantly, allowing attendees the opportunity to hear, a newly designed 32-bit John Stadius mic pre-amp for the first time.

Stadius and his team have been designing pre-amp for over 40 years. Now, this new improvement in converter technology has allowed them to develop a pre-amp with audio qualities that they have long aspired to achieve.

The specifications of the 32-bit SD mic pre-amp card include:

— Fully differential audio path from input to converter
— Twin 32-bit ADC conversion per channel
— Quick conversion time; 73uS
— Dynamic range of 123dBA
— Low noise; 128dB EIN
— Transparency and clarity of audio; 20-22kHz <0.002% THD+N
— Frequency response; 20-44.5kHz ±0.1dB
— Open and clear audio reproduction; 12dB harmonic weighting improvement
— 8 channels; 0deg phase shift 20-22kHz
— Dedicated analog low noise linear power supplies; including +48V phantom power
— Only one, phantom power blocking, capacitor in the audio path; Gold Nichicon “MUSE” acoustic series
— Fully shielded analog stage
— Precision clipping with no artifacts
— Reduced operating temperature
— Roadworthy metal XLR connectors



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