Focusrite Pro ISA Two

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Focusrite Pro ISA Two Educational
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FRT-PROISATWO
Focusrite
Mac & Win
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Two Channels Of Classic Focusrite Mic Pres

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.

 

·        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

·        Brainworx bx_console Focusrite – exclusive plug-in that faithfully captures the sound, feel and styling of the original Focusrite ISA 110 Equaliser and ISA 130 Dynamics Modules.

MIC INPUT RESPONSE

Gain Range (Mic)

 

0 dB to 60 dB in 10 dB steps, plus 0 dB to 20 dB continuously variable trim

 

EIN (Mic)

 

Measured at 60 dB of gain with 150 O source impedance and 22 Hz-22 kHz band pass filter -127 dB

 

Noise (Mic)

 

Noise at output with unity gain (0 dB) and 22 Hz-22 kHz band pass filter -97 dBu

 

Frequency Response (Mic)

 

At minimum gain (0 dB)-0.5 dB at 10 Hz,?-1 dB at 135 kHz, relative to 1 kHz

 

At 60 DB Gain (Mic)

 

-6 dB at 10 Hz, -1 dB at 115 kHz, relative to 1 kHz

 

Crosstalk Channel To Channel (Mic)

 

Mic input, with I/P = 0 dBu, gain = 0 dB @ 1 kHz input to channel A, channel B output = -85 dB

 

Test54654654654

 

test+O

 

LINE INPUT RESPONSE

Gain Range (Line)

 

-20 dB to 10 dB in 10 dB steps, plus 0 dB to 20 dB continuously variable trim

 

Input Impedance (Line)

 

10 kO from 10 Hz to 200 kHz

 

Frequency Response (Line)

 

At minimum gain (0 dB)-0.3 dB at 10 Hz, -1 dB at 80 kHz, relative to 1 kHz

 

Crosstalk Channel To Channel (Line)

 

Line input, with I/P = 0 dBu, gain = 0dB @ 1 kHz input to channel AChannel B output?= -91 dB

 

INSTRUMENT INPUT RESPONSE

Gain Range (Instrument)

 

10 dB to 40 dB continuously variable trim

 

Input Impedance (Instrument)

 

2 MO

 

Noise (Instrument)

 

Measured with 22 Hz-22 kHz band pass filterMinimum gain ( 10 dB) = -95 dBu

 

Frequency Response (Instrument)

 

At minimum gain ( 10 dB)-0.1 dB at 10 Hz,?-1 dB at 115 kHz, relative to 1 kHz

 

At Maximum Gain ( 40 DB) (Instrument)

 

-2.5 dB at 10 Hz, ?-1 dB at 110 kHz, relative to 1 kHz

 

HIGH-PASS FILTER

Roll-Off

 

18 dB per octave (3 pole filter)

 

Frequency Range

 

Continuously variable from 16 Hz to 420 Hz (-3 dB)

 

WEIGHT AND DIMENSIONS

W X D X H

 

480 mm x 280 mm x 44 mm

 

Weight

 

3.7 kg

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