Focusrite ISA Two 2-Channel Microphone Pre-Amplifier

Description

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Focusrite ISA Two 2-Channel Microphone Pre-Amplifier
Condition: Brand New in Original Packaging
SKU: AMS-ISA-2
Features
Two ISA series transformer-based preamps
Features Lundahl LL1538 input transformer
Selectable input impedance
Two front-panel instrument inputs
Dedicated TRS line input socket with front-panel switch
Dedicated analog insert points
Variable high pass filter
Switchable input impedance including classic ISA 110 setting
User-calibrated peak-level meters
Brainworx bx_console Focusrite – exclusive plug-in
Product Description
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 60 dB of gain is available on the first four-position rotary and gain range switches, with a further +20 dB of continuously variable trim, meaning a huge 80 dB of gain is available should it be required. The high-pass filter features variable cut-off frequency between 16 and 420 Hz. A pair of 8-segment LED meters shows 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.
What's in the Box
Focusrite ISA Two 2-Channel Microphone Pre-Amplifier
IEC Power Cable
User Guide
Specifications
Focusrite ISA Two 2-Channel Microphone Pre-Amplifier
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
Test: 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 kOhms 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 A Channel 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)
Dimensions and Weight
Dimensions (W x D x H): 480 x 280 x 44 mm
Weight: 3.7 kg
Shipping
Payment
Returns
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