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Focusrite ISA828 8 Channel Microphone Preamp


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MSRP: $3,379.99 $2,699.99 Save : $680.00 (20%)
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MSRP: $3,379.99 $2,699.99 Save : $680.00 (20%)
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The Focusrite ISA828 eight channel microphone pre-amplifier provides eight original ISA transformer-based pre amps in a single robust 2U chassis.

The Focusrite ISA828 eight channel microphone pre-amplifier provides eight original ISA transformer-based pre amps in a single robust 2U chassis, offering the Focusrite signature sound at its lowest cost per channel to date. The eight ISA-series transformer-based microphone pre amps feature the same classic microphone pre-amplifier design as the original ISA110 module from Focusrite's critically acclaimed Forte console (including the original Lundahl L1538 transformer and bespoke zobel network).

The pre-amps are complemented by eight line inputs, eight line outputs and an optional eight channel 192kHz ADC boasting the widest dynamic range of any converter to date. Thanks to its convenient 25 pin D-Type connectors, the ISA828 also integrates quickly and seamlessly with ProTools HD, as well as other popular hard disc recorders and mixing desks.

The microphone input stage additionally includes a variable impedance circuit, allowing the user to switch between four carefully selected input impedance settings. The original ISA110 setting is supplemented by three further impedance settings to either perfectly match the pre-amp with any microphone, thus maximizing level, or to use different settings creatively to shape the sound of the microphone being used.

The four front panel instrument inputs also feature high and low impedance options to provide a comprehensive and accessible DI solution. Insert switches are also featured on every channel, should the need arise to place extra processing between the pre amp and converter. Vintage design 75 Hz / 18dB per octave high pass filters are also provided on every channel, ensuring unwanted low frequencies are effectively eliminated.

Every channel features a six LED input meter, complete with global precise meter trim. Metering has been designed to utilise the same reference points as Digidesign’s Pro Tools HD system and provides clear and accurate input metering, independent of the DAW.
  • Eight ISA series transformer-based pre amps
  • One robust 2U chassis and a low cost-per-channel
  • Focusrite analog circuitry delivering the best A/D performance
  • Convenient 25 pin D-Type connectors
  • Integrates quickly and seamlessly with all DAW & desks
  • Switchable Impedance to suit any microphone.  
  • Direct Instrument inputs
  • Each instrument input features high & low impedance options
  • Inserting available on every channel
  • External devices can be inserted using a D-25 cable.  
  • Independent High pass, Phase & Phantom power switches
  • Six LED input meter, complete with precise meter trim
  • Meters use the same reference points as Digidesign’s HD

For full specifications and details,
click on the "More Info" tab.

Things You Will Get:

  • Mic Preamp
  • Power Cord
  • Manual


by PowerReviews
Series ISA
Model ISA828


ISA828-Product Sheet.pdf

Focusrite Digital Conversion.pdf

ISA828-User Guide.pdf

Warranty Info:

ISA828 8 Channel Microphone Preamp

The manufacturer's warranty covers parts for one year and labor for one year from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.