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IGS Neox 500

  • Description
  • Specifications
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Mic preamp and compressor

The Preamp

IGS Audio NEOX 500 is a microphone preamplifier and compressor combo fitted into a single 500-series module, that can work with any API 500 Series compatible rack. It was created using advanced transformerless design, providing low noise signal path, excellent dynamic response, and maintenance free usage for years. Despite the extended functionality (for a single 500-series unit) it still offers the ease of use, through the well laid out front panel.


The Compressor

The preamp section features 60dB of adjustable gain boost, phantom power, phase flip and 70 Hz high pass filter. The compressor section is based on the VCA principle, using highly specialized IC, supported by an external circuitry, that controls the attack and release times. The envelope of the release time consist of two stages – the amount of gain reduction lowers by 80% within the first 150ms and by further 20% within the next 450ms. This unique feature helps the NEOX 500 to behave like an optical compressor. User has an access to the THRESHOLD level knob, RATIO (1:1 to 100:1 – soft compression to hard limiting), OUTPUT level and the bypass switch.


The Metering

Comprehensive metering is also available on the front panel. 5-Led VU meter showing the module output level and 5-Led Gain Reduction meter displaying the amount of signal reduction achieved by the VCA compressor.

VCA Compressor Yes
HPF Off, 70Hz (6dB/oct)
Hard wire bypass Yes, for the compressor
Phantom Power Yes
Input Impedance (balanced) 10k ohm
Output Impedance (balanced) 50 ohm
Operating Level +4 dBu
Max input level +4 dBu
Max output level +20 dBu (into 600 ohm load)
Dynamic Range >93 dBA
Max. gain 60 dB (minimal gain: 14 dB, compressor make-up gain range: 22 dB)
Max Gain Reduction 24 dB
Attack: 5ms
Ratio 1:1 to 1:100
Release: 150ms (80%) + 450ms (20%)
Fequency response 20 Hz to 20k Hz (HPF off)
Signal to Noise Ratio >93 dBA
THD 0.009% (1 kHz)
Power consumption 3W
Shipping weight 1 kg



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