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Focusrite ISA One

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Focusrite ISA One

Classic mic pre with independent DI

$599.99

or pay $100.00/month for 6 months* with the Providence Synchrony Card

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Focusrite ISA One – Classic Transformer-Based Microphone Preamp

The Focusrite ISA One brings the legendary sound of Focusrite’s classic transformer-based microphone preamp to a rugged, portable chassis. Based on the iconic ISA110 circuit, the ISA One features a Lundahl input transformer that imparts unique sonic character, making it ideal for both vintage and modern microphones. With switchable impedance settings, an independent DI channel, and optional 192kHz A-D conversion, the ISA One delivers unparalleled versatility for artists, engineers, and producers.

Key Features:

  • Classic Focusrite Transformer-Based Preamp: Includes the Lundahl LL1538 input transformer for the signature ISA sound.
  • Independent DI Channel: Features front-panel inputs with high (2.4 MΩ) and low (470 kΩ) impedance settings, independent gain control, amp output, and an XLR output on the rear panel.
  • Switchable Impedance: Choose from four carefully selected input impedances, including the original ISA110 setting, to suit any microphone and shape your sound.
  • Dedicated Insert Point: Allows for seamless integration of external processors like EQs or compressors between the preamp and the optional converter.
  • Optional 192kHz A-D Conversion: Upgrade to an optional digital card for world-class analog-to-digital conversion with 118dB dynamic range.
  • Headphone Output with Volume Control: Monitor a mix of the two inputs or an external stereo cue mix via TRS jack inputs on the rear panel.
  • Backlit VU Meter: Features variable calibration alongside six-LED peak meters for precise level monitoring.

Transform Your Sound

At the heart of the ISA One is the Lundahl LL1538 input transformer, originally used in Focusrite’s Red modules, which imparts a distinctive character that no digital emulation can replicate. The addition of variable impedance settings allows for even greater flexibility, letting you enhance the character of vintage microphones or achieve a pristine, transparent sound with modern mics.

Versatile DI Channel

The independent DI channel is perfect for capturing instruments like guitars or basses, offering high and low impedance options and a dedicated amplifier output. This flexibility makes the ISA One ideal for both studio recording and live performances.

Optional Precision A-D Conversion

Upgrade the ISA One with a 192kHz A-D converter for exceptional analog-to-digital performance, boasting a dynamic range of 118dB. This ensures the ISA One integrates seamlessly into both analog and digital workflows.

Built to Last

Encased in a rugged, all-metal chassis, the ISA One is built for years of reliable performance. Its combination of robust construction, legendary sound, and versatile features makes it a must-have tool for any recording studio or live setup.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. 
For more information go to www.P65Warnings.ca.gov.