Focusrite ISA One Microphone Preamp

*Please note — This pre-owned item may show signs of use. Please see photos for details of the product.

At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer essentially the same circuit, based on the original ISA110, that has been used for 30 years in successive Focusrite designs.

The input transformer imparts a special character to the sound that can’t be truly emulated in any other way: inseparable from the microphone itself, the transformer input stage is ideal for use with classic microphones. But this mic pre has a twist the original didn’t have, which makes it far more versatile: four carefully-selected impedances allow you to match microphone to input in different ways. Bring out the character of a classic mic or emphasise a special feature, or go for a totally transparent, modern sound it’s up to you.

Whether you’re an artist, engineer or producer, you’ll appreciate the versatility of the ISA One, with its front-panel DI input. The DI includes low/high impedance switching and an amplifier output, and its own feed to the optional A/D converter and separate rear-panel XLR output.