Interphase Audio releases Silicon and Iron 500 Series Preamps

The Interphase Audio 500-series line expands with 2 fabulous Microphone PreAmplifiers

Ardennes, Belgium – December 2024

Adding to the company’s much-loved range of 500 EQ modules, Interphase Audio introduces two new Microphone PreAmps in the 500-series format.

Crafted in the Belgium audio brand’s workshops, these new additions are high-resolution tools for in-studio recording or high-quality recording on the move.

Please meet Silicon and Iron.

Silicon is the 500 / 51x module version of the fabulous Microphone Amplifier of the Ark console.

This preamp will amplify the signal coming from your microphone incredibly well - transparent, pristine, clear - without colouration, distortion or added noise.

Silicon brings out the best from any microphone.

For pure sonic clarity, Silicon’s transformerless, universal, solid-state amp can accept signals from any type of microphone whatsoever.

Even older Ribbon microphones, synths or guitars can be directly connected without a problem. With an extraordinarily low Equivalent Input Noise of -138dBu, Silicon will not add any noise over and above that coming from the microphone itself. Really!

Silicon also features Interphase Audio’s Reference Bargraph Meter and the High-Pass-Filter (Lo-Cut-Filter) from the EQ section of the Ark console.

Silicon is a Discrete, Class-A design,

hand-built by Interphase Audio in Belgium and carries a 5-year warranty.

Specifications (real measurements)

Input Impedance: 20k
Maximum Input Level (unity gain): +20dBu (500 Module)
Maximum Input Level (unity gain): +24dBu (51X Module)
Frequency Response (-1dB): 15Hz to 40kHz
Frequency Response (-3dB): 7Hz to 80kHz
Equivalent Input Noise (input shorted, 60dB gain): -138dBu
Output noise at minimum gain (low Range): -100dBu
Output noise at minimum gain (high Range): -83dBu
Total Harmonic Distortion at +4dBu output: 0.0004%
Inter Modulation Distortion at +4dBu output: 0.0004%
Common Mode Rejection: -80dB
Maximum Output Level: +26dBu (500 Module)
Maximum Output Level: +32dBu (51X Module)
Current requirement: 65mA (maximum) per rail
Size and weight: Standard 500 Series, 0.6 kilos

Iron is the 500 / 51x module version of the fabulous Microphone Amplifier of the Ark console, but with our custom input transformer

This transformer preamp will amplify the signal coming from your microphone incredibly well - transparent, pristine, clear – but transformer generated harmonics and distortion will be added when “running hot”.

Iron brings out the best from your mics, but can give that little extra “push” if needed.

For pure sonic clarity, Iron’s amp can accept signals from any type of microphone whatsoever.

Even older Ribbon microphones, synths or guitars can be directly connected without a problem. With an extraordinarily low Equivalent Input Noise of -134dBu, Iron will not add any noise over and above that coming from the microphone itself. Really!

Iron also features Interphase Audio’s Reference Bargraph Meter and the High-Pass-Filter (Lo-Cut-Filter) from the EQ section of the Ark console.

Iron is a Discrete, Class-A design,

hand-built by Interphase Audio in Belgium and carries a 5-year warranty.

Specifications (real measurements)

Input Impedance: 6k
Maximum Input Level at 1kHz ( gain): +22dBu (500 Module)
Maximum Input Level at 1kHz (minimum gain): +24dBu (51X Module)
Frequency Response (-1dB): 15Hz to 30kHz
Frequency Response (-3dB): 7Hz to 40kHz
Equivalent Input Noise (150 ohm source, 60dB gain): -134dBu
Output noise at minimum gain (low Range): -100dBu
Output noise at minimum gain (high Range): -93dBu
Total Harmonic Distortion at 1kHz and +4dBu output: 0.007%
Inter Modulation Distortion at 1kHz and +4dBu output: 0.0002%
Common Mode Rejection: -80dB
Maximum Output Level: +26dBu (500 Module)
Maximum Output Level: +32dBu (51X Module)
Current requirement: 85mA (maximum) per rail
Size and weight: Standard 500 Series, 0.6 kilo

Silicon is available with Silver or Black faceplate for 579 Euro / 615 USD

Iron is available with Silver or Black faceplate for 740 Euro / 785 USD

For more information please visit: https://www.interphase.audio/silicon/

https://www.interphase.audio/iron/









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