Focusrite AMS-ISA-ONE Classic Mic Preamp with Independent DI

ITEM #: FCSR-AMS-ISA-ONE MFG #: AMS-ISA-ONE

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List Price:

$749.99

Our Price:

$599.99

Availability: Typically Ships in 3-10 Business Days
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    AMS-ISA-ONE - Overview

    Featuring a rugged, portable all-metal enclosure, the Focusrite ISA One combines the classic Focusrite microphone preamp with a flexible, independent DI channel and optional 192kHz precision A-D conversion. At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer - essentially the same circuit, based on the original ISA 110, 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 truly emulated in any other way, while the modern twist of variable input impedance allows for a new degree of flexibility.

    Whether you're an artist, 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 separate rear-panel XLR output.

    • Features:

      • Classic ISA mic preamp design featuring Lundahl LL1538 input transformer
      • Flexible independent DI channel
      • Switchable input impedance including classic ISA 110 setting
      • Headphone output with volume controlDedicated insert point
      • Optional stereo 192kHz A-D conversion card
       
    • Specifications:

      • Mic Input Response
      • Gain Range (Mic): 0dB to 60dB in 10dB steps 20 dB of variable gain
      • EIN (Mic): -126dB measured at 60dB of gain with 150 Ohm terminating impedance and 22Hz/22kHz band-pass filter
      • Noise (Mic): Noise at output with unity gain (0 dB) and 22 Hz-22 kHz band pass filter-97 dBu
      • Signal-To-Noise Ratio (Mic): 106 dB relative to max headroom (9dBu)
      • Frequency Response (Mic): At minimum gain (0 dB)-0.5dB down at 10Hz and -3dB down at 125kHz
      • CMRR (Mic): 98dB (Channel 1, 1kHz, maximum gain with 24 dBu input)
      • Crosstalk Channel To Channel (Mic): With 10dB@1kHz input to chA, chB output =104dBrA. With 10dB@10kHz input to chA, chB output = 84dBrA

        Line Input Response
      • Gain Range (Line): -20dB to 10dB in 10dB steps 20 dB of variable gain
      • Input Impedance (Line): 10 kO from 10 Hz to 200 kHz
      • Total Harmonic Distortion Noise (Line): Measured with a 0 dBu input signal, and a 22 Hz-22 kHz band pass filter0.0001
      • Frequency Response (Line): At unity gain (0 dB)-0.3dB down at 10Hz and -3dB down at 200kHz

        Instrument Input Response
      • Gain Range (Instrument): 10dB to 40dB continuously variable
      • Input Impedance (Instrument): High = greater than 1M Low =greater than 300k
      • THD (Instrument): At minimum gain ( 10)

        High-Pass Filter
      • Roll-Off: 18 dB per octave (3 pole filter)
      • Frequency: Fixed 75Hz measured at the 3dB down point

        Weight & Dimensions
      • WxDxH: 8.7" (W) x 4.09" (H) x 10 - 11.4" (D)
      • Weight: 8.6lbs
       

    AMS-ISA-ONE - Required Accessories

      California Residents:
      WARNING:
      Cancer and Reproductive Harm - www.P65Warnings.ca.gov