Focusrite ISA 828 MkII – 8-Channel Classic Microphone Preamplifier The Focusrite ISA 828 MkII brings the legendary sound of Focusrite’s classic ISA microphone preamps into a powerful eight-channel rackmount format. Designed for professional studios, tracking rooms, and broadcast environments, ISA 828 MkII combines premium analogue circuitry, Lundahl input transformers, flexible connectivity, and extensive gain control for capturing vocals, drums, instruments, and more with exceptional clarity and character. Classic Focusrite ISA Sound Each channel features Focusrite’s renowned ISA mic preamp design with a Lundahl LL1538 input transformer, delivering the rich, detailed sound that has defined countless professional recordings. Variable input impedance provides multiple tonal options, including the iconic ISA 110 setting that recreates the impedance of the original Focusrite console preamps. Eight Channels of Professional Recording Power With eight independent mic preamps, ISA 828 MkII is built for demanding tracking sessions. Each channel includes microphone and line inputs, while channels 1–4 feature dedicated front-panel instrument inputs for directly recording guitars, basses, and other high-impedance sources. Massive Gain and Flexible Control The ISA 828 MkII offers up to 60dB of microphone gain with an additional +20dB continuously variable trim, providing an impressive 80dB gain range. Every channel includes a switchable high-pass filter, insert points, and detailed LED metering for precise control over your recordings. Expand Your Digital Workflow The optional ISA ADN8 expansion card adds high-quality analogue-to-digital conversion with Dante, ADAT, and AES3 connectivity, allowing ISA 828 MkII to integrate seamlessly into modern digital studios and professional audio networks. Features Eight channels of classic Focusrite ISA microphone preamps Lundahl LL1538 input transformers on every channel Variable input impedance with classic ISA 110 setting Up to 80dB total gain range (60dB gain + 20dB trim) Microphone, line, and instrument inputs Front-panel instrument inputs on channels 1–4 Dedicated rear-panel mic and line connectors Switchable rear-panel insert points High-pass filter with 75Hz frequency and 18dB/octave slope Six-segment LED peak-level meters on every channel Optional ISA ADN8 digital expansion card Dante, ADAT, and AES3 connectivity up to 24-bit/192kHz Brainworx bx_console Focusrite plugin included Three-year warranty Specifications Channels: 8 microphone preamps Inputs: Mic, line, instrument (channels 1–4) Gain Range: Up to 80dB Input Transformer: Lundahl LL1538 High-Pass Filter: 75Hz, 18dB/octave Digital Expansion: ISA ADN8 (optional) Digital Outputs: Dante, ADAT, AES3 Maximum Sample Rate: 24-bit/192kHz The Focusrite ISA 828 MkII is a true professional recording centerpiece, delivering the legendary ISA character, modern flexibility, and the reliability required for high-end studio production, tracking, and broadcast applications.
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