Focusrite ISA 828

8-channel microphone preamplifier
  • 8 original Focusrite ISA transformer-based preamps
  • Switchable input impedance (4 settings per channel) provides a range of response flavors
  • Sturdy 2U chassis
RRP: $4899.00
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  • Focusrite

The Focusrite ISA 828 microphone preamp puts eight of Focusrite's original ISA preamps into a compact 2U space, giving you amazing sound quality in a unit that's convenient for both your studio and your wallet. The ISA 828 gives you a variable impedance circuit with several settings, and also includes eight line/four instrument inputs with high and low impedance options. Using 25-pin D-type connectors, this preamp is easy to interface with Pro Tools HD rigs, as well as many other recording systems and mixing consoles.

Microphone preamplifiers lie at the root of the Focusrite family tree. Back in 1985, when Sir George Martin asked console design legend Rupert Neve to design new modules for AIR Studios, the Input Signal Amplifier, or ISA – the mic pre – was the first. That design was the foundation of Focusrite’s benchmark Red range, and its descendants form the ISA series available today.

Key features:

  • 8 original Focusrite ISA transformer-based preamps in a single 2U space
  • Works seamlessly with ProTools, as well as other hard disc recorders & mixing consoles
  • Switchable input impedance (4 settings per channel) provides a range of response flavors
  • 8 line inputs with four front panel instrument inputs featuring high impedance options
  • Switchable Insert points on every channel
  • Vintage design highpass filters on every channel eliminate unwanted low frequencies without effecting the rest of the audio signal
  • 6 LED Input meters on all eight channels provide clear input metering independent of the DAW
  • Sturdy 2U chassis



Gross Shipping Weight - Volumetric (kgs) 11.700000
Preamp TypeSolid State
Number Of Channels8
Rack Spaces2RU
Analog InputsMic in: 8 x XLR | Line in: 8 x 1/4" jacks | Hi-Z: 4 x 1/4" jacks | A/D: 1 x DB25
Analog Outputs1 x DB25
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