Focusrite ISA One Single Channel Microphone Studio Preamp

Portable Single Channel Microphone Studio Preamp
Focusrite ISA One Single Channel Microphone Studio Preamp

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Focusrite's ISA One is a high quality preamplifier, which can be used to record microphone, line-level or instrument sources. The microphone and line-level sources are connected on the rear panel, whilst instruments are plugged directly into the front panel. The ISA One combines the classic Focusrite microphone preamp with a flexible, independent DI channel and optional 192kHz precision A/D conversion all in a rugged, portable all-metal enclosure.


  • ISA series transformer-based preamplifier
  • Flexible independent DI channel
  • Switchable impedance
  • Headphone output with volume control
  • Dedicated insert point
  • Lundahl LL1538 Input Transformer
  • Backlit VU meter with variable calibration
  • Optional stereo 192kHz A-D converter available


  • Analogue Channel Inputs
    • XLR Mic input
    • One XLR and one TRS line input
    • XLR Instrument input TRS Jack
    • External ADC input TRS Jack
    • TRS jack return
  • Analogue Channel Outputs
    • TRS jack send
    • XLR balanced line output
    • XLR DI output
    • TS jack DI through
  • Analogue Channel Additional I/O
    • TRS Jack cue mix left input
    • TRS Jack cue mix right input
    • 1/4” TRS Jack headphones output
  • High-Pass Filter
    • Roll-Off18 dB per octave (3 pole filter)
    • Frequency Fixed 75Hz measured at the 3dB down point
  • Dimensions (W x H x D): 220 mm x 104 mm x 290 mm
  • Weight: 3.9 kg

1 x Focusrite ISA One Pre-Amplifier



  • Standard Delivery - Free
  • Express Delivery - $20
  • Store Pick Up (South Melbourne) - Free

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