A Modern Audio Interface Built on Legendary ISA Sound
Melding Focusrite’s flagship digital performance with its legendary console heritage, the ISA C8X is a professional-caliber interface designed to anchor your entire studio. This 26‑in, 28‑out USB‑C audio interface houses eight remote‑controlled mic preamps, including two transformer‑based ISA channels with Lundahl iron, equipping you with the unmistakable warmth, depth, and authority of a classic Focusrite console. The ISA C8X includes enough physical I/O to accommodate everything from outboard‑heavy workflows to immersive 7.1.4 monitoring, as well as comprehensive digital connectivity. Additionally, you get balanced inserts, stepped Gain knobs, switchable impedance, highpass filters, and all-analog Console and 430 Air modes on the ISA channels, along with an analog Air mode and variable Drive DSP on the remaining six mic inputs. On top of that, you’ll benefit from world-class sound, thanks to RedNet-derived 24‑bit/192kHz AD/DA conversion with an impressive 125dB of dynamic range and ultra‑low distortion. Finally, the Focusrite ISA C8X features full front-panel and Focusrite Control 2 software control, bolstered by Audio Gain and mobile app support, making it a potent, studio‑ready centerpiece for demanding professionals.
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The Lundahl legacy
As dyed-in-the-wool Focusrite aficionados, Sweetwater’s in-house recording engineers maintain a decades-long reverence for Lundahl LL1538 input transformers — the secret sauce behind the fabled ISA console sound, selected by the legendary Rupert Neve himself. Driven by Lundahl transformers, the ISA C8X’s two remote-controllable ISA microphone preamps will infuse every signal you run through them with subtle warmth and iron-fueled weight, joined by balanced inserts, stepped Gain controls, switchable impedance, highpass filters, and up to 79dB of gain. Relay‑switched circuitry puts classic analog tone at your fingertips, enabling you to achieve variable saturation via Console mode and a high‑frequency lift with 430 Air mode. Complementing the ISA pres are six remote-controlled, ultra‑low‑noise Focusrite mic preamps, providing you with up to 69dB of clean gain, enhanced by an analog Air mode and variable Drive DSP. Moreover, for direct recording, two front-panel ISA Instrument inputs are routed through the same Lundahl transformers and feature selectable impedance, with Console and 430 Air modes available to add authentic console character to your guitars, basses, and other instruments.
Patchbay-ready I/O with room to grow
The Focusrite ISA C8X brandishes all the physical I/O you need to support complex studio setups, including eight dedicated fixed‑gain balanced Line Inputs, which are ideal for patchbay setups and permanent installations, allowing you to connect outboard gear without constant repatching. The interface’s 12 balanced Line Outputs support mono, stereo, and immersive formats up to 7.1.4, with three monitor groups, front‑panel or remote switching, and a professional +24dBu maximum output level that ensures consistent line‑up levels and delivers up to 125dB of A‑weighted dynamic range. Beyond that, Outputs 1 and 2 feature both XLR and TRS connectors for maximum flexibility. The ISA C8X also includes two dedicated Class AB Headphones outputs with independent level control, optimized impedance, and extra headroom for clean, detailed playback. There’s also plenty of digital connectivity on tap, including ADAT, S/PDIF, MIDI, and Word Clock, ensuring ample expandability with up to 16 channels over ADAT and two via S/PDIF for up to 26 channels of recording.
Flagship-level sound and performance
Teeming with workflow-enhancing features and flaunting class-leading audio quality, the ISA C8X exhibits flagship-caliber 24‑bit/192kHz AD/DA converters derived from Focusrite’s top-of-the-line RedNet range, supplying you with exceptional clarity with up to 125dB of dynamic range and 0.00022% total harmonic distortion. Auto Gain automatically sets optimal levels across all eight preamps from the interface’s front panel or via Focusrite Control 2 desktop and mobile apps. Moreover, Focusrite Control 2 enables straightforward remote management, low‑latency monitoring, and complete recall of mixes and routing across multiple connected interfaces. Backed by Focusrite’s 3‑year manufacturer’s warranty and award‑winning technical support, the ISA C8X offers demanding engineers the confidence and reliability required for mission-critical professional studio environments.
Focusrite ISA C8X Features:
- 26-in, 28-out USB-C audio interface melding Focusrite’s flagship digital performance with its legendary console heritage
- 2 remote-controlled ISA preamps with Lundahl transformers deliver the warmth, depth, and authority of a classic Focusrite console
- ISA pres include balanced inserts, stepped Gain controls, switchable impedance, HPFs, Console/430 Air modes, and 79dB of gain
- 6 additional remote-controlled Focusrite mic pres with an analog Air mode, variable Drive DSP, and 69dB of gain
- 2 front-panel, transformer-based ISA Instrument inputs with selectable impedance, plus Console/430 Air modes
- 8 fixed‑gain balanced Line Inputs are ideal for patchbay setups and permanent installations
- 12 balanced Line Outputs support mono, stereo, and immersive formats up to 7.1.4 with 3 monitor groups
- Front‑panel or remote monitor switching with a professional +24dBu maximum output level
- Outputs 1 and 2 feature both XLR and TRS connectors for maximum flexibility
- 2 Class AB Headphones outputs with independent level control, optimized impedance, and extra headroom
- ADAT, S/PDIF, MIDI, and Word Clock provide ample digital connectivity
- Flagship-caliber 24‑bit/192kHz AD/DA converters derived from Focusrite’s top-of-the-line RedNet range
- Auto Gain automatically sets optimal levels across all 8 preamps
- Focusrite Control 2 software enables remote management, low‑latency monitoring, and complete recall of mixes and routing
- Backed by Focusrite’s 3‑year manufacturer’s warranty and award‑winning technical support
- Includes the Sonnox Oxford Reverb plugin and Hitmaker Expansion plugin bundle
