SKU: ISATWO Category:


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Focusrite’s ISA Two brings together a totally independent pair of legendary ISA microphone preamps from the original ISA 110 module, combining the best of traditional solid-state electronics with the original input transformer specified by Rupert Neve – the Lundahl LL1538. Two is a nice round number – ideal for recording, say, a vocal and an instrument, or a stereo piano. But though you may only need two mic pres, you owe it to your craft to choose the best. (And if you need more, we offer ISA 428 Mk II 4-channel and ISA 828 8-channel units too.)

  • Lundahl LL1538 mic input transformer
  • Up to 80 dB of gain
  • Variable input impedance
  • User-calibrated metering
  • Front panel instrument and rear panel line inputs
  • Variable cut-off high-pass filter
  • Rear panel balanced inserts



Frequency Response: 10Hz (at -0.5dB) to 135kHz (at -1dB) relative to 1kHz
Gain range: 0 dB to +60 dB in 10 dB steps, plus 0 dB to +20 dB continuously variable trim
Input Impedance: Switched Impedance setting
Equivalent Input Impedance at 1 kHz
Low = 600 Ω
ISA 110 = 1.4 kΩ
Med = 2.4 kΩ
High = 6.8 kΩ

Signal-to-Noise Ratio: 121dB at (+24dBu)
THD: >0.0007% at 1kHz
Dimensions: 480 x 280 x 44 mm
Weight: 3.7kg


For more information, please visit the manufacturer's website.