Focusrite ISA ONE - Microphone Preamp

Focusrite ISA One - Single Channel Preamp Kit with ISA A/D Option Card

Focusrite ISA One - Single Channel Preamp Kit with ISA A/D Option Card

B&H # FOISAONEK (B&H Kit)
Focusrite ISA One - Single Channel Preamp Kit with ISA A/D Option Card

Kit includes:


Focusrite ISA ONE - Microphone Preamp Focusrite ISA Two-Channel A/D Option Card Focusrite ISA One - Single Channel Preamp Kit with ISA A/D Option Card

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Product Highlights

  • Single Channel Microphone Preamp
  • Transformer Based
  • Insert Point
  • Headphone Output
  • DI Input
  • A/D Card for ISA One
  • AES, S/PDIF, ADAT Lightpipe
  • Wordclock I/O
  • 120 dB Dynamic Range
  • Up to 24-Bit/192 kHz Conversion
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  • 1Description

This B&H Kit combines the Focusrite ISA One Microphone Preamp with the Focusrite ISA Two-Channel A/D Option Card to form a high quality analog-to-digital converter for a professional recording setup. The ISA One is a single channel, transformer-based microphone preamp, based on the original ISA 110 preamp that formed the cornerstone of each channel of the legendary Forte console. It features classic vintage topology and includes the Lundahl L1538 transformer and a custom Zobel network. In addition to switchable input impedance settings for the microphone preamp, the unit includes a line input on XLR and 1/4" TRS phone jacks. An independent DI channel features a dedicated gain control, active or passive impedance switch, a 1/4" TRS output for routing to an amplifier, and an independent XLR output on the rear.

The ISA Two-Channel A/D Option Card is a stereo digital output card for the ISA One. The stereo digital output formats include single/dual wire AES/EBU and S/PDIF from a 9-pin D-type connector, and the card operates at all sample rates up to 192 kHz. The ADAT (TOSLink) port is stereo and operates at 24-bit resolution with up to 96 kHz sampling rates. Wordclock I/O on BNC connectors extends the functionality of the expansion card.

  • Focusrite ISA ONE - Microphone Preamp
    The ISA One from Focusrite is a single channel, transformer-based microphone preamp, based on the original ISA 110 preamp that formed the cornerstone of each channel of the legendary Forte console. It features classic vintage topology and includes the Lundahl L1538 transformer and a custom Zobel network.

    In addition to switchable input impedance settings for the microphone preamp, the unit includes a line input on XLR and 1/4" TRS phone jacks. An independent DI channel features a dedicated gain control, active or passive impedance switch, a 1/4" TRS output for routing to an amplifier, and an independent XLR output on the rear.

    The ISA One features an insert point should the need arise to place extra signal processing between the preamp or DI, and the optional analog-to-digital 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 by a moving coil VU meter with variable calibration to suit analog and digital recording media, alongside two six-LED peak meters. Inputs can be metered either pre- or post-insert. The meter calibrations utilize the same reference points as Digidesign's Pro Tools HD systems, allowing effortless integration with Pro Tools.

    Classic single-channel Focusrite microphone preamp with Independent DI
    Ideal for both engineers and demanding performers alike, featuring independent gain control, an output for routing to an amp, an independent XLR output on the rear and routing to the optional ADC
    Four, carefully selected, switchable input-impedance levels (including the original ISA 110 setting), to match or enhance the performance of any microphone
    Headphone output with volume control can feed either a sum of the two inputs to the headphones output, or an external stereo cue mix (such as a stereo mix feed from an interface) via two TRS Jack inputs on the rear of the unit
    Optional stereo 192kHz analog-to-digital conversion card utilizes cutting-edge conversion technology and Focusrite analog circuitry to deliver the highest A/D performance with a dynamic range of 119dB
    Dedicated insert point allows the user to place extra processing such as an EQ or compressor, between the preamplifier or DI and the optional converter
    UPC: 815301005100
  • Focusrite ISA Two-Channel A/D Option Card
    The ISA Two-Channel A/D Option Card from Focusrite is a stereo digital output card for the ISA 430 MkII channel strip and the ISA One. The stereo digital output formats include single/dual wire AES/EBU and S/PDIF from a 9-pin D-type connector, and the card operates at all sample rates up to 192 kHz. Appropriate cables for each format are required.

    The ADAT (TOSLink) port is stereo and operates at 24-bit resolution with up to 96 kHz sampling rates. Wordclock I/O on BNC connectors extends the functionality of the expansion card.

    UPC: 815301004103
In the Box
Table of Contents
  • 1Description
  • Focusrite ISA ONE - Microphone Preamp
    Number of Channels Single
    Inputs 1 x XLR Microphone
    1 x XLR Line
    1 x 1/4" TRS phone Line
    1 x 1/4" TRS phone Instrument
    1 x 1/4" TRS phone External Input
    1 x 1/4" TRS phone Cue Left
    1 x 1/4" TRS phone Cue Right
    1 x 1/4" TRS phone Return
    Output 1 x XLR Line
    1 x XLR DI
    1 x 1/4" TS DI Thru
    1 x 1/4" TRS phone Send
    1 x 1/4" TRS phone Headphone
    Phantom Power 48V
    Multi Function No
    Gain Range Mic: 0dB to 60dB in 10dB steps with 20dB of variable gain
    Line: -20dB to +10dB in 10dB steps with 20dB of variable gain
    Maximum Output Level Not specified by manufacturer
    Frequency Response 16Hz to 118kHz, -3.0dB @ maximum gain
    Noise Mic SNR: 106dB
    Line SNR: 120dB
    Dimensions (WxDxH) 8.7 x 10/11.4 x 4.1" (220 x 254/290 x 104 mm)
    Weight 8.6 lbs (3.9 kg)
    Packaging Info
    Box Dimensions (LxWxH) 16.2 x 15.5 x 9.3"
  • Focusrite ISA Two-Channel A/D Option Card
    Form Expansion card
    Connectors 1 x 9-pin D-type
    1 x ADAT Lightpipe
    1 x TOSLink S/PDIF optical
    2 x BNC Wordclock I/O
    Packaging Info
    Box Dimensions (LxWxH) 11.5 x 8.5 x 2.0"

Focusrite ISA One - Single Channel Preamp Kit with ISA A/D Option Card Review

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