| | | Focusrite ISA Two Rackmount Mic Preamp | | | This is a no hassle BUY IT NOW listing for your convenience with FREE EXPEDITED SHIPPING in the continental United States! | | | | Brand New Focusrite ISA Two with Full Factory WarrantyTwo Dual Channel Rack Mount Mic PreampsRetail Price: $1124.99Includes:
(1) Focusrite ISA Two 2-Channel Mic Pre
(1) IEC US Power Cord
(1) Operator's Instructions | | | Click on an image to open in new window |
| | | Description | You may only need a couple of mic preamps – but they should be the best
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.Two legendary mic pres
Focusrite’s ISA Two brings together a totally independent pair of legendary 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. Two is a nice round number – ideal for recording, say, a vocal and an instrument, or a stereo piano. But though you may only need two mic pres, you owe it to your craft to choose the best. (And if you need more, we offer ISA 428 Mk II 4-channel and ISA 828 8-channel units too.)Variable input impedance
We’ve made one little adjustment to the mic pre. The original ISA 110 had a single input impedance that was ideal for the mics of the time. We’ve added three more, allowing you to get the very best out of any microphone, vintage or modern. Give a vintage mic the input it expects to get a traditional, warm sound. Pair the ISA Two with modern microphones and get the most transparent sound imaginable. Or experiment and pull out the inner character of any microphone you care to try. Couple that with up to 80dB of gain and you can be ready for anything.Front panel instrument inputs
In addition to the mic pres, there are front panel instrument inputs for instant access, along with rear-panel line ins. There’s also a balanced insert point on the rear panel, actuated with a front-panel button so you can insert the EQ, dynamics or other processors you need. Add to that the user-calibrated 8-LED metering and variable cutoff high-pass filter and you know that with the ISA Two you’ll have everything you need to get the highest quality sound into your recordings. | | | Features: | Specifications: | | Lundahl LL1538 mic input transformer - Rupert Neve originally chose the Lundahl LL1538 to be the input transformer on the ISA 110. To this day the Lundahl transformer remains the best microphone input transformer available, and is used in every ISA Series mic pre. Rupert Neve also perfected the Zobel network found in the ISA circuit; something which takes a lot of knowledge and a golden set of ears.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 110 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.User-calibrated metering - Each channel has an eight-LED array to clearly display the level of your two signals. You can line up your analogue evels with your converters or DAW by using the calibration knob on the rear panel. You will be safe in the knowledge that you have avoided clipping on the way in.Front-panel instrument and rear panel line inputs - Built in, and easily accessed with its own large knob and illuminated button, is an extremely smooth-sounding 18 dB/octave high-pass filter of the same design as the original ISA 110 module. This is ideal for cutting out rumble, thumps and other unwanted low-frequency sounds and with a range of 16 to 420 Hz, it's easy to lose what you don’t want, and keep what you do.Rear panel balanced inserts - Each channel of ISA Two has its own balanced insert point. With 1/4" TRS send and receive connections, your choice of signal processor can be connected and switched in and out using the illuminated switch on the front panel. | Maximum Output Level: +24 dBu with a THD+N Maximum Microphone Transformer Input Level: +7 dBu with a THD+N Mic Input Gain range: 0 dB to +60 dB in 10 dB steps, plus 0 dB to +20 dB continuously variable trimMic Input Impedance: Switched Impedance setting Low = 600 Ohms, Equivalent Input Impedance at 1 kHz, ISA 110 = 1.4 kOhm, Med = 2.4 kOhm, High = 6.8 kOhmMic Input EIN: -127 dBMic Input Noise: -97 dBuMic Input Signal-to-Noise Ratio: 121 dB relative to max output +24 dBuMic Input Total Harmonic Distortion + Noise: Mic Input Frequency Response At minimum gain (0 dB: -0.5 dB at 10 Hz, -1 dB at 135 kHz, relative to 1 kHzMic Input Frequency Response At +60 dB gain: -6 dB at 10 Hz, -1 dB at 115 kHz, relative to 1 kHzCMRR (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 dBuMic Input Crosstalk Channel to Channel: Mic input, with I/P = 0 dBu, gain = 0 dB @ 1 kHz input to channel A, channel B output = -85 dBLine Input Gain Range: -20 dB to +10 dB in 10 dB steps, plus 0 dB to +20 dB continuously variable trimLine Input Impedance: 10 kOhm from 10 Hz to 200 kHzLine Input Noise: -97 dBuLine Input Signal-to-Noise Ratio: 121 dB relative to max output +24 dBuLine Input Total Harmonic Distortion + Noise: Line Input Frequency Response: At unity gain (0 dB) -0.3 dB at 10 Hz, -1 dB at 80 kHz, relative to 1 kHzLine Input Crosstalk Channel to Channel: Channel B output = -91 dBInstrument Input Gain Range: +10 dB to +40 dB continuously variable trimInstrument Input Impedance: > 2 MOhmInstrument Input Noise Measured with 22 Hz-22 kHz : Minimum gain (+10 dB) = -95 dBuInstrument Input Noise At minimum gain (+10 dB): -0.1 dB at 10 Hz, -1 dB at 115 kHz, relative to 1 kHzInstrument Input Frequency Response At maximum gai: -2.5 dB at 10 Hz, -1 dB at 110 kHz, relative to 1 kHzRHigh-Pass Filter oll-Off: 18 dB per octave (3 pole filter)High-Pass Filter Frequency Range: Continuously variable from 16 Hz to 420 Hz (-3 dB)Dimensions: 480 mm x 280 mm x 44 mmWeight: 3.7 kg | |
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