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Focusrite ISA Two 2-channel Microphone Preamp
ISA Two Classic Dual Mono Transformer-Based Microphone Preamplifier. 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' 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:
- Two channels of Focusrite goodness in a rackspace!
- Lundahl LL1538 mic input transformer
- Up to 80dB of gain
- Variable input impedance
- User-calibrated metering
- Front-panel instrument and rear panel line inputs
- Variable cut-off highpass filter
- Rear panel balanced inserts
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Technical Specification
- Preamp Type: Solid State
- Number of Channels: 2
- Phantom Power: Yes
- Analog Inputs: 2 x XLR, 2 x TS (inst), 2 x TRS (line), 2 x TRS (Return)
- Analog Outputs: 2 x XLR, 2 x TRS (Send)
- Frequency Response: 10Hz-135kHz
- Rack Spaces: 1U
- Height: 1.75"
- Depth: 11"
- Width: 19"
- Weight: 8.16 lbs
- Warranty: 1 year
What Is In The Box
- Focusrite ISA Two 2-channel Microphone Preamp
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Manufacture Description
Lundahl LL1538 Mic Input Transformer
ISA Two uses the famed Lundahl LL1538 input transformer, the same design used on the original ISA 110. To this day the Lundahl transformer remains the best microphone input transformer available, and is used in every ISA Series mic pre.
Up to 80 dB of Gain
ISA Two offers up to 80 dB of clean, distortion-free gain. The much heralded ISA topology also ensures low noise, even at the highest gain levels. The transformer alone supplies 20 dB of gain, while ISA's input stage offers up to 60 dB in addition, giving an astonishing 80 dB of maximum gain on the microphone input.
Variable Input Impedance
Four choices of input impedance, including the original ISA 100 value, allow you to match the preamp to your microphone, even if it's a vintage type, giving you the best possible sound. The impedance is selected using a switch on the front panel, and the impedance choice is remembered even once the unit is switched off and back on