Focusrite ISA 828 MkII – Eight-Channel Classic Mic Preamp

The Focusrite ISA 828 MkII features eight channels of legendary ISA mic pres, complete with Lundahl LL1538 input transformers for exceptional clarity and warmth. Each channel provides mic, line, and instrument input options, along with variable input impedance to tailor the sound for any microphone. With a high-pass filter, per-channel LED metering, and switchable insert points, the ISA 828 MkII offers unparalleled flexibility and sonic precision. Now equipped with a modern power supply for efficient operation and an optional ISA ADN8 A-D card for Dante, ADAT, and AES3 connectivity, the ISA 828 MkII is the perfect solution for professional recording setups.

Key Features:

• Eight ISA Mic Pres: Classic design with Lundahl LL1538 input transformers for rich, detailed audio.
• Variable Input Impedance: Four settings, including the original ISA 110 value, optimize performance with any microphone.
• Front-Panel Instrument Inputs: Channels 1-4 include instrument inputs with selectable impedance options.
• High-Pass Filter: Fixed at 75Hz with 18dB/octave roll-off to minimize low-frequency noise.
• Switchable Insert Points: Allow inline use of external processors such as EQs and compressors.
• Per-Channel LED Metering: Six-segment LED meters provide precise signal level monitoring for each channel.
• Optional ISA ADN8 A-D Card: Adds eight channels of digital output, supporting Dante, ADAT, and AES3 up to 192kHz (sold separately).
• Switching Power Supply: Efficient, cool operation enhances reliability without compromising sound quality.

Unmatched Versatility

The ISA 828 MkII offers dedicated connectors for mic, line, and instrument inputs, making it perfect for permanent rack installations. Up to 80dB of gain ensures compatibility with a wide range of sources, while the variable input impedance unlocks new sonic possibilities with vintage and modern microphones. The fixed high-pass filter and LED metering add further control and clarity to your recording workflow.

Optional A-D Conversion

Expand your ISA 828 MkII with the optional ISA ADN8 card for seamless integration with digital workflows. The card supports eight channels of high-resolution 24-bit/192kHz audio via Dante, ADAT, and AES3, making it an ideal choice for professional studios and live setups.

Built for Professionals

Designed for demanding recording environments, the ISA 828 MkII features robust construction, efficient power management, and world-class audio performance. Its switchable insert points and flexible input options provide the ultimate in recording and processing capabilities.

Studio-Grade Software Included

Every ISA 828 MkII includes the Brainworx bx_console Focusrite SC plug-in, a faithful emulation of the iconic Focusrite Studio Console. Capture the warmth and precision of the original ISA 110 Equaliser and ISA 130 Dynamics Modules directly in your DAW.Specifications:

• Inputs: Mic, line, and instrument inputs on each channel.
• High-Pass Filter: Fixed at 75Hz, 18dB/octave slope.
• Gain Range: Up to 80dB, with +20dB trim.
• Meters: Six-segment LED peak meters for each channel.
• Digital Expansion: Optional ISA ADN8 A-D card with Dante, ADAT, and AES3 outputs (sold separately).

Backed by a 3-year warranty, the Focusrite ISA 828 MkII delivers the professional quality and reliability you need for any recording project.