Focusrite - ISA 828 MK2

The Focusrite ISA 828 MkII is a preamplifier that any serious recording engineer or musician should have in their sights. Designed to meet the needs of professional studios while integrating perfectly into a home studio environment, this model is distinguished by its eight classic microphone preamps, directly derived from the legendary ISA 110 module. For those familiar with the brand’s history, the name ISA immediately evokes the quality and sonic precision that Focusrite is renowned for, particularly thanks to the studio consoles of the 80s and 90s.

What makes the ISA 828 MkII so appealing is first and foremost the presence of Lundahl LL1538 transformers on each input. These transformers guarantee exceptional sonic transparency, with faithful and uncompromising reproduction of the input signal. Whether you are a vocal enthusiast or a fan of recording acoustic instruments, you can be sure that this preamplifier will bring out every nuance of your sound source. For even more versatility, the first four channels feature instrument inputs directly on the front panel, making it easy to connect guitars, basses, or other instruments without having to unplug everything in the back.

One of the ISA 828 MkII’s greatest assets is its ability to adjust the input impedance. By offering different impedance options, this unit allows for a range of subtle sonic options depending on the microphone you’re using. Whether you’re working with condenser, dynamic, or even ribbon mics, you can tailor the impedance to get the best possible sound. And if you’re nostalgic for the sound of the original ISA 110, there’s a special setting that lets you recreate the impedance of this legendary preamp. A stylish nod to those looking to recapture the sound of old studios.

Another standout feature of this preamp is its impressive gain range. With up to 80dB of gain (60dB of which is adjustable and an additional 20dB of variable compensation), the Focusrite ISA 828 MkII lets you amplify both quiet and loud sound sources without losing quality. Even the most discreet instruments or vocals will find their place in the mix, as will louder signals, with an exemplary signal-to-noise ratio.

In terms of installation, the Focusrite ISA 828 MkII is designed to integrate into a variety of configurations. Dedicated line inputs and outputs allow multiple types of sources to be connected simultaneously, making it ideal for permanent installation in a rack. The addition of switchable insert points on the rear allows external processors (compressors, EQs, etc.) to be inserted into the audio chain without having to go back to the mixing desk. A considerable time saving in the studio, where flexibility is king.

But where the Focusrite ISA 828 MkII really sets itself apart from its predecessor is its switch-mode power supply. This new technology reduces heat generation and optimises energy consumption, ensuring quiet and reliable operation, even under heavy use. This upgrade not only makes the unit more powerful, but also more durable, which is always a bonus in professional studio equipment.

Finally, for those looking to integrate their setup into a digital environment, Focusrite offers an optional expansion card: the ISA ADN8. This card offers digital outputs compatible with Dante, ADAT and AES3 protocols, with resolutions of up to 24-bit/192kHz. Suffice to say, you can transform your analogue studio into a true digital workstation without losing a single sonic detail.

This Focusrite ISA 828 MkII combines heritage, innovation and flexibility, making it a must-have preamplifier for any professional or home studio. Its extensive connectivity options and fine impedance management make it an ideal tool for anyone who wants to capture the best possible sound quality, without compromise.