• Focusrite Pro ISA Two 2-Channel Mic Preamp
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Focusrite Pro ISA Two 2-Channel Mic Preamp

Focusrite Pro ISA Two 2-Channel Mic Preamp

SoundPro Item: 16949 | Part Number: AMS-ISA-2

$1,029.99
$1,029.99 $1,029.99
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MSRP: $1,029.99 | MAP: $1,029.99

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  • Classic ISA mic preamp design featuring Lundahl LL1538 input transformer
  • Front-panel instrument inputs
  • Dedicated TRS line input socket with front-panel switch
  • Switchable input impedance including classic ISA 110 setting
  • Dedicated insert points
  • User-calibrated peak-level meters
  • 3 Year Warranty
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Focusrite's ISA Two brings together a totally independent pair of classic ISA microphone preamps from the original ISA 110 module, combining the best of traditional solid-state electronics with the original input transformer specified by Rupert Neve – the Lundahl LL1538.

Each mic pre has the option of mic, line or the front-panel instrument input, with variable input impedance to ensure you are getting the best performance from the source. Up to 60dB of gain is available on the first four-position rotary and gain range switches, with a further +20dB of continuously variable trim, meaning a huge 80dB of gain is available should it be required. The high-pass filter features variable cut-off frequency between 16 and 420Hz. A pair of 8-segment LED meters show peak signal level in dBFS, while a rear-panel pot allows calibration to suit your A-D converters. Rear-panel insert points allow the use of inline processors such as compression.

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Specifications

Audio
Frequency Response
At minimum gain (0 dB)-0.5 dB at 10 Hz,?-1 dB at 135 kHz, relative to 1 kHz
At 60 DB Gain
-6 dB at 10 Hz, -1 dB at 115 kHz, relative to 1 kHz
Input Impedance
10 kO from 10 Hz to 200 kHz
General
EIN
measured at 60 dB of gain with 150 O source impedance and 22 Hz-22 kHz band pass filter -127 dB
Noise
Noise at output with unity gain (0 dB) and 22 Hz-22 kHz band pass filter -97 dBu
Roll-off
18 dB per octave (3 pole filter)
DSP Engine
Gain Range
0 dB to 60 dB in 10 dB steps, plus 0 dB to 20 dB continuously variable trim
RF
Frequency Range
continuously variable from 16 Hz to 420 Hz (-3 dB)

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