Focusrite ISA One Microphone Preamp with Digital Card  (Ex-Display)

Focusrite ISA One Microphone Preamp with Digital Card (Ex-Display)

Product code: bstfocisaonead
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This Focusrite ISA One microphone preamp comes with a fitted ADC card. The ISA One features Focusrite's famous ISA transformer-based pre-amp in a rugged and portable design. The ISA One features the vintage microphone pre-amplifier topology from the original ISA110 module, including the Lundahl L1538 transformer and bespoke zobel network. The original 110 pre amp formed the cornerstone of each channel of Focusrite's legendary Forte console.


  • Focusrite ISA One Microphone Preamp with Digital Card (Ex-Display)

    This Focusrite ISA One microphone preamp comes with a fitted ADC card. The ISA One features Focusrite's famous ISA transformer-based pre-amp in a rugged and portable design. The ISA One features the vintage microphone pre-amplifier topology from the original ISA110 module, including the Lundahl L1538 transformer and bespoke zobel network. The original 110 pre amp formed the cornerstone of each channel of Focusrite's legendary Forte console.

    Main Features

    • Classic Single channel microphone pre-amp
    • Built on the same prestigious design of the ISA110
    • 192kHz ADC built in
    • Variable impedance
    • Flexible Independent D.I. Channel
    • Headphone Output with Volume Control
    • Dedicated Insert Point
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    The pre-amp is complemented by a line input (XLR and TRS Jack) and an independent D.I. channel, complete with dedicated gain control, active or passive impedance switch, a TRS Jack output for routing to an amp and an independent XLR output on the rear. This flexible independent D.I. makes the ISA One ideal both for engineers wishing to blend a D.I.'d guitar signal with a mic'd guitar cabinet, and for demanding performers who require a single classic solution for both guitar and vocals.

    A variable impedance circuit has been added, allowing the user to switch between four carefully selected input impedance settings. In addition to the original ISA110 impedance, three further impedance settings allow perfect matching, or creative mismatching of the pre amp with any microphone. ISA One also features an insert point, should the need arise to place extra processing between the pre amp or D.I. and the optional converter. Phantom power, phase reverse and a 75Hz, 18dB/octave high-pass filter are also available from the angled front fascia.

    Independent input metering for both channels is provided in the form of a moving coil VU meter with variable calibration to suit analogue and digital recording media, alongside two six-LED peak meters: inputs can be metered either pre- or post-insert. The meter calibrations utilise all the same reference points as Digidesign's Pro Tools HD system, allowing effortless line-up.

    ISA One's headphone output features a dedicated volume control, which delivers an external stereo cue mix, (a simple click track, or a stereo mix feed from an interface or a live console,) fed to the headphones via two TRS jack inputs on the rear of the unit.

    This unit is fitted with the state-of-the-art stereo A-D converter (the same card as used with the ISA430 Mk II), embodying cutting-edge conversion technology seated within Focusrite's custom analogue circuitry. This card provides two channels of 24 bit/192kHz A-D conversion with a dynamic range of 119dB.

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  • Additional Information

    On demo in store No
    Brand Focusrite
    Condition Ex-display

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