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  4. Focusrite ISA 430 MkII | Vintage Microphone Preamplifier

Focusrite ISA 430 MkII | Vintage Microphone Preamplifier

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  • $ 1,999.99
  • Regular price $ 2,499.99

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Focusrite ISA 430 MkII

Line

Gain Range +10dB to +40dB continuously variable
Input Impedance >1M Ohm

Mic

Gain Range 0 to +60dB in 10dB steps
Input Impedance Variable as follows: 600 Ohm, 1k4 Ohm, 2k4 Ohm, 6k8 Ohm
EIN -128dB with 150 Ohm terminating impedance at 60dB of gain
Noise -97dBu
THD 0.001% with -20dBu 1kHz input and 20Hz-22kHz bandpass filter

Compressor (VCA mode)

Threshold Range -28dB to +12dB
Ratio 1.5:1 to 10:1
Slope Soft knee
Attack 100µs to 100ms
Release 100ms to 7s, variable or auto (program dependent)

Compressor (Vintage Opto mode)

Threshold Range -28dB to +12dB
Slope Soft knee in Comp mode, Hard knee in Lim mode
Attack Fixed
Release Fixed

EQ

Low Pass Filter 18dB/oct from 400Hz to 22kHz
Parametric Section Comprised of low-mid & Hi-mid parametric, each with continuously variable boost/cut with centre detent, frequency sweep control with two ranges, and fully variable Q. Low-mid frequencies 40Hz to 400Hz (120Hz to 1k2Hz when x3 is pressed). Hi-mid frequencies 600Hz to 6kHz (1k8Hz to 18kHz when x3 is pressed
Shelving section Comprised of: high frequency shelf, with frequency range steps of 1.5kHz, 3.3kHz, 6.8kHz and 15kHz (2.2kHz, 4.7kHz, 10kHz and 18kHz when Hi Range is engaged), and low frequency shelf, with frequency range steps of 20Hz, 56Hz, 160Hz and 460Hz (33Hz, 95Hz, 270Hz and 655Hz when Hi Range switch is engaged)

Gate

Threshold Range -40dB to +10dB
Gate Range 0 to -80dB
Attack switched fast or slow
Release 100ms to 5s
Hold 20ms to 4s
Expander Ratio 0 to 5:1

De-Esser

Threshold Range 22dB
Frequency Range 2k2 to 9k2
Ratio at centre frequency 2:1

Limiter

Threshold Range 20dB
Ratio Infinite (Brick Wall)
Attack Frequency Dependent

Weight

7.58kg 16.7lbs

Dimensions

484mm (W) x 85mm (H) x 250mm (D) 19" (W) x 3.5" (H) x 9.8" (D)
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