Focusrite ISA428 MkII 4-channel Microphone Preamp

The Focusrite ISA428 MkII is a four-channel microphone preamp that uses Focusrite’s transformer-based preamps.

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Focusrite microphone preamplifiers in a 4-pack have never been more inexpensive! The Focusrite ISA428 MkII Preamp maintains all of the key functionalities of the original ISA428. In a handy 2U chassis, you get four hand-wound transformer-based preamps based on the original ISA 110 preamp circuit. Each of these amazing preamps has switchable impedance and a remarkable 122dB dynamic range, as well as Focusrite’s highly sought-after warm and transparent sound. You also receive the same great DI circuits featured on the original ISA428, which are popular among engineers because to the bite they offer electric bass.


In addition, by removing the bulky VU meters and soft limiters while preserving the exact LED metering of the original ISA428, Focusrite lowered the ISA428 MkII’s environmental impact. They’ve also simplified its appearance and cut costs without sacrificing performance. With an optional A/D converter card, you can convert up to eight channels through ADAT lightpipe, making the ISA428 MkII as simple to integrate into your DAW as ever.

Focusrite ISA428 MkII Preamp


Focusrite ISA428 MkII Preamp Features:

  • 4 classic transformer-based preamps
  • Switchable impedance for unparalleled mic matching or extended mic creativity
  • Includes the classic ISA 110 setting
  • Multiple direct instrument inputs on the front panel
  • Analog insert points on every channel
  • Highpass filters on every channel
  • Ultra-precise LED metering (dBfs)
  • 2U chassis design
  • Optional A/D card provides 8 channels of cutting-edge conversion at up to 192kHz
  • Free Brainworx bx_console re-creation of Focusrite’s ISA 110 and ISA 130 modules
  • 3-year warranty



With a commitment to provide  top-notch customer service and competitive prices, Audio Shop Nepal is the go-to destination for many audio enthusiasts in Nepal looking to purchase Focusrite products.





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