Focusrite ISA 828 MK2
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- This item is covered for 3 years
What you need to know
What you need to know
- 8 classic ISA preamps inspired by the Focusrite ISA 110 module, each input featuring a Lundahl LL1538 transformer for a rich and controlled sonic signature.
- Massive gain up to 80 dB (60 dB + 20 dB continuously variable trim): ideal for very sensitive recordings to demanding sources, from ribbons to soft vocals.
- Total studio versatility: dedicated mic and line inputs, plus 4 front-panel DIs for guitar, bass, or synth without external boxes.
- Designed for rack integration: front-panel switchable inserts, per-channel high-pass filters, LED metering per channel, and extendable via optional ISA ADN8 card for Dante, ADAT, and AES3 up to 24-bit / 192 kHz.
Manufacturer Information
Focusrite
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Algam SAS
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A revisited ISA heritage: the continuity of Focusrite sound in MkII version
Building on the design spirit of the Focusrite ISA 110 microphone preamp from the "Studio" console, the ISA 828 MkII continues the legacy of ISA preamps appreciated for their combination of transparency, gain reserve, and musicality. This MkII version preserves the sonic DNA (notably thanks to Lundahl transformers on each channel) while enhancing studio ergonomics and reliability for intensive rack use, featuring a switch-mode power supply designed to improve efficiency, reduce heat, and maintain silent operation.
Who the ISA 828 MkII is for: studios, live recordings, and permanent racks
The Focusrite ISA 828 MkII is designed for setups requiring eight channels of consistent quality: drum recording, acoustic ensembles, multi-mic setups, voice-over, or live capture with a reliable rack. Thanks to dedicated mic and line inputs, it is particularly suited for "always wired" installations: microphones ready to record, external preamp outputs, or processor returns, without needing to rewire the studio each session.
Technical specifications
| Insert | Yes | Category | microphone preamp |
| Number of channels | 8 | Audio outputs | Sub-D 25 |
| Phantom power supply | Yes | Impedance selector | Yes |
| EQ | High-pass filter | Vumeter | LED level indicator |
| Rack unit | 2 | Number of instrument inputs | 4 |
| Compressor | No | Number of microphone inputs | 8 |
| Phase opposition | Yes | Color | Blue |
| Remote | No | Weight | 7.05 kg |
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Questions frequently asked
How many microphones can be recorded simultaneously with this preamp?
The eight XLR mic inputs allow preamplification of eight sources simultaneously, which is especially useful for drum setups and multi-mic recordings.
Is the ISA 828 MkII compatible with Dante or ADAT?
Expansion to Dante, ADAT, and AES3 requires the optional ISA ADN8 card. This card provides eight digital outputs up to 24-bit / 192 kHz.
Can external compressors be connected to each channel?
Switchable insert points on the front panel allow integration of external line-level processors, such as compressors or equalizers, into the signal chain of each channel.
What is the gain range of the Focusrite ISA 828 MkII preamp?
The gain range reaches 80 dB, facilitating the capture of low-level sources.
Is the high-pass filter adjustable on each input?
Each channel features a variable high-pass filter from 16 to 420 Hz. This setting helps reduce vibrations and mechanical noise before processing. A six-segment LED meter, individually calibratable, allows monitoring of each channel's level.
