Focusrite AMS-ISA-2

Availability: Available Unavailable

Product Type: Pro Audio

Product Vendor: Focusrite

Product SKU:

Details Overview The ISA Story goes back to 1985, when Sir George Martin commissioned legendary designer Rupert Neve to design new modules for the console at AIR Montserrat. They were so successful that more were commissioned for AIR London. These...


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Product Details

Details

Overview

The ISA Story goes back to 1985, when Sir George Martin commissioned legendary designer Rupert Neve to design new modules for the console at AIR Montserrat. They were so successful that more were commissioned for AIR London. These original modules form the basis of today’s Focusrite ISA range – delivering the legendary Focusrite sound to leading studios, artists, producers and engineers around the world. Literally hundreds of hits have been made with the Focusrite ISA Range – and continue to be made today.

Features

  • Lundahl LL1538 mic input transformer

  • Up to 80 dB of gain

  • Variable input impedance

  • User-calibrated metering

  • Front panel instrument and rear panel line inputs

  • Variable cut-off high-pass filter

  • Rear panel balanced inserts

  • XLR-F mic inputs

  • 1/4" TRS line inputs

  • 1/4" TRS Sends

  • 1/4" TRS Returns

  • XLR-M line output

  • Single peak meter calibration dial

  • Single IEC power socket

  • 1/4" instrument input

  • Variable input impedance - Low, ISA 110, Medium, High

  • Input selection - Mic, Line, Instrument

  • 0 - 30 dB/30 - 60 dB gain switch

  • Phantom power switch

  • Phase invert switch

  • 0 - 60 dB gain in 10 dB steps

  • 0 - +20 dB continuously variable trim

  • Variable high-pass filter with on/off switch

  • Insert point on/off switch

  • Eight-LED user-calibrated level meters

  • Single power switch

Specifications

Maximum Input and Output Levels  
Maximum Output Level +24 dBu with a THD+N < 0.01% at 1kHz measured with 150 ? source impedance and 22Hz/22kHz band-pass filter
Maximum Microphone Transformer Input Level +7 dBu with a THD+N < 0.7% at 1kHz measured at 0 dB of gain with 150 ? source impedance and 22Hz/22kHz band-pass filter
   
Mic Input Response  
Gain range 0 dB to +60 dB in 10 dB steps, plus 0 dB to +20 dB continuously variable trim
Input Impedance Switched Impedance setting
Equivalent Input Impedance at 1 kHz
 
 
EIN (Equivalent Input Noise) Measured at 60 dB of gain with 150 ? source impedance and 22 Hz-22 kHz band pass filter
Noise Noise at output with unity gain (0 dB) and 22 Hz-22 kHz band pass filter
Signal-to-Noise Ratio Measured with 150 ? source impedance and 22 Hz-22 kHz band pass filter
Total Harmonic Distortion + Noise Measured with a -20 dBu input signal at +30 dB of gain and with a 22 Hz-22 kHz band pass filter
Frequency Response At minimum gain (0 dB)
At +60 dB gain
CMRR (Common Mode Rejection Ratio) -94 dB for mic input at 60 Hz for max. output = +24 dBu
-91 dB for mic input at 10 kHz for max. output = +24 dBu
Crosstalk Channel to Channel Mic input, with I/P = 0 dBu, gain = 0 dB @ 1 kHz input to channel A, channel B output = -85 dB
   
Line Input Response  
Gain range -20 dB to +10 dB in 10 dB steps, plus 0 dB to +20 dB continuously variable trim
Input Impedance 10 k? from 10 Hz to 200 kHz
Noise Noise at main output with gain at unity (0 dB) measured with 50 ? source impedance and a 22Hz - 22 kHz band pass filter
Signal-to-Noise Ratio Measured with 50 ? source impedance and a 22 Hz-22 kHz band pass filter
Total Harmonic Distortion + Noise Measured with a 0 dBu input signal, +10 dB of gain and a 22 Hz-22 kHz band pass filter
Frequency Response At minimum gain (0 dB)
Crosstalk Channel to Channel Line input, with I/P = 0 dBu, gain = 0dB @ 1 kHz input to channel A
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