Focusrite ISA828 MkII Mic Preamp

The ISA828 MkII utilizes the classic Focusrite transformer-based design featuring Lundahl LL1538 input transformers. This architecture provides a distinct, rich, and detailed character that is often described as more musical and authoritative than the transparent, clinical preamps found in most standard audio interfaces.

Yes, channels 1 through 4 feature dedicated front-panel DI inputs specifically designed for instruments. These allow you to plug in your guitar or bass directly, utilizing the same high-quality transformer circuitry as the microphone inputs.

Switchable impedance allows you to change how the preamp interacts with your microphone, which can subtly alter the frequency response and output level. It is a useful tool for fine-tuning the tone of vintage ribbon mics or getting the most out of different dynamic microphones.

Absolutely. With eight channels of high-gain preamplification, it is purpose-built for tracking drums. The individual high-pass filters on each channel are particularly helpful for cleaning up low-end rumble on toms and snare drums during the tracking stage.

The unit functions perfectly as an analog preamp out of the box. However, if you want to send digital signals directly to your interface or console, you will need to purchase the optional digital expansion card, which supports Dante, ADAT, or AES3 connectivity.

The unit offers up to 80dB of gain, which is more than enough to drive even the most demanding low-output ribbon or dynamic microphones. This ensures you can capture quiet sources with plenty of headroom and minimal noise.