The pinnacle of analog channel strip technology.

The ISA 430 MKII Producer Pack brings together all the classic Focusrite designs in one comprehensive production tool. Augmented with additional features and flavors, alongside unmatched internal routing and connectivity, the ISA 430 MKII enables today's recording professional to enjoy the unique sonic contribution of these heritage microphone preamp, compressor, EQ and de-esser designs in one extremely versatile signal processor.

Focusrite ISA430 MKII Producer Pack Features:

Classic Focusrite transformer-based mic pre with variable impedance and "Air" feature
Multi-format compressor switches between transparent VCA and vintage optical circuits
Unmatched flexibility with an incredible variety of insert points and variable signal path arrangements
Functions as 4 separate modular processors: mic pre, EQ, dynamics, and stereo ADC
Precision VU metering of input level, Insert 1 or 2 Return levels
Compressor gain reduction or sidechain listen level (switched)
Classic Focusrite EQ design; an expanded version of the original ISA 110
Post mic pre output for the shortest possible signal path
Proprietary Focusrite discrete Class A VCA gate and expander designs
Listen feature for precise control over compression, gating, expansion, and de-essing
De-esser design based on optical technology for lower distortion and transparency
Soft limiter to avoid critical digital overload
Optional stereo A/D — 24-bit 192kHz Delta Sigma converter

Focusrite ISA430 MKII Producer Pack Specifications:

Mic
Gain Range: 0 to +60dB in 10dB steps
Input Impedance: Variable - 600 Ohms,2K4 Ohms,6K8 Ohms and original ISA110 settings
EIN: -128dB with 150 Ohms terminating impedance at 60dB of gain
Noise: -97dBu
THD: 0.001% with -20dBu (1kHz input and 20Hz—22kHz bandpass filter)

Line
Gain Range: +10dB to +40dB continuously variable
Input Impedance: >1MOhm

Compressor (VCA mode)
Threshold Range: -28dB to +12dB
Ratio: 1.5:1 to 10:1
Slope: Soft knee
Attack: 100 microseconds to 100 milliseconds
Release: 100mS to 7S, variable or
auto (program dependent)

Compressor (Vintage Opto mode)
Threshold Range: -28dB to +12dB
Ratio: 1.5:1 to 5:1 in Comp mode
5:1 to 20:1 in Lim mode
Slope: Soft knee in Comp mode,
Hard knee in Lim mode
Attack: Fixed