ISA ONE FOCUSRITE PRO Classic Single-Channel Microphone Preamp/DI

At the heart of the ISA range is the microphone preamp 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 emulated in any other way: inseparable from the microphone itself, the transformer input stage is ideal for use with vintage microphones. But this mic preamp has a twist that the original didn't, making it far more versatile: four carefully selected impedances allow you to match the microphone to the input in different ways. Bring out the character of a vintage microphone or emphasize a particular characteristic, or opt for a modern, totally transparent sound—it's up to you. Whether you're a performer, 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 a separate XLR output on the rear panel.

• ISA Series Transformer Based Preamplifier.


• Flexible Independent DI Channel.


• Switchable Impedance.


• Headphone Output with Volume Control.


• Dedicated Insertion Point.


• Optional 192 kHz Stereo AD Converter.


• Lundahl LL1538 Input Transformer.


• Backlit VU Meter with Variable Calibration.


• This product has a 1-year warranty against factory defects.