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Focusrite RED 1 Quad Microphone Preamp

SKU: 133625 Model: RED 1 Serial: mf10648
Quantity Available: 1 Condition: Used


Description

Using the same circuit topology as the original ISA pre-amp designs, the Red 1 offers four channels of ultra-high quality Focusrite microphone pre-amplification. Used with high quality ribbon, valve and condensor mics, the Red 1 obtains outstanding results with any sound source, but especially voice, piano and string instruments. With four mic pre-amps in a single unit, the Red 1 is ideal for those looking for improved audio performance, as a compact
‘way in’ to digital recording systems, or for location multi-mic recordings. Each channel offers custom-wound Focusrite input transforers, switchable phantom power, phase reverse, an illuminated VU meter, and a handy scribble disc for denoting channels. Mic gain is also switched for accurate, precise channel matching and recall.

The many benefits of the unique Focusrite pre-amp topology include superb common mode rejection, a good overload margin and, with its shared gain structure, (20dB from transformer and up to 40dB from the amplifier) a very low noise floor with the signature wide bandwidth (10Hz to 200KHz). It also maintains this level of performance with a very wide range of impedance across the inputs. In practice, this makes it what one reviewer called, “perhaps the most revealing yet forgiving mic pre-amp in history.”
The output stages of the Red 1, with its custom transformers, will easily drive very long cable runs – up to several kilometers – without significant loss of quality, making them ideal for remote recordings.

Specifications:
Mic input gain: -6dB to +60dB in6dB steps
Mic Input Impedance: 1200Ω ±15%, balanced and fl oating
Frequency Response: 10Hz to 140kHz (-3dB points), ±0.1dB within passband
Noise (EIN): -127dBu (input loaded 200Ω) @ 60dB gain
Distortion: 0.15% (-20dBu @ 20Hz)
0.06% (-20dBu @ 40Hz)
0.003% (-20dBu @ 1kHz)
0.005% (-20dBu @ 10kHz)
Output: +24dBm into 600Ω
+26dBm into 10kΩ,
balanced and floating