Overview With eight channels of Focusrite microphone pre-amplification, eight VCA-based Red 3-derived compressors and built-in 24-bit / 96 kHz digital inputs and outputs, OctoPre MkII Dynamic is Focusrite’s feature-rich expansion upgrade for any digital audio workstation. It’s equally an ideal expansion for any analogue or digital console, or hard disk recorder. Digital inputs and outputs let you make the most of often-neglected ADAT i/o; ideal for expanding the number of mic-pre inputs on your interface or for providing analogue monitoring from any digital ADAT feed. With this entire package fitting into a single 1U chassis complementing Focusrite’s Saffire PRO range, and all controls adjustable from the front fascia, OctoPre MkII Dynamic sets the standard for modern, compact, multi-channel recording expansions. Saffire Mic Pre Focusrite has, over the past two decades, built a reputation as the market leader for high quality recording equipment, with its mic pre technology as the cornerstone of that enviable reputation. The original ISA mic pre, as featured in the early Focusrite Forte console, is still used by many of the industry's greatest producers and has contributed to the sound of countless hit records. Today, Focusrite design equipment for a far greater audience, from professionals to amateur enthusiasts, all with varying budgets. As with the Classic ISA mic pre used in both the ISA and Red ranges, the Saffire mic pre found in the OctoPre MkII Dynamic is designed to the highest possible standards. It upholds the same wide bandwidth philosophy featured in the original forté console, back in 1989. As with the Classic ISA mic pre, the Saffire mic pre design features custom components which have undergone an intense testing and qualification process. With the facts and figures in, Focusrite designs then have to pass the essential listening stage. Any design can measure well on the test bench but only a great design can be qualified in the studio. The FET-based Saffire mic pre design is no exception. It delivers clarity without colouration and exhibits the signature transparency for which Focusrite have become famous. With the high channel count interfaces (Saffire PRO 40 and Liquid Saffire 56) and both the OctoPre MkII and OctoPre MkII Dynamic, the Saffire pre-amp has been optimized for drums. The theoretical maximum level of a microphone was calculated, and the mic pre was adjusted with this in mind so as not to clip with this level present, set to minimum gain. As a result, the mic pre won’t clip, even with a high output level mic right up close to a snare drum (the mic input will accept signal levels up to +16dBU from a microphone). Performance Conversion • A/D Dynamic Range 110dB ‘A-weighted’ (all inputs) • D/A Dynamic Range 110dB ‘A-weighted’ (all outputs) • Clock Jitter < 250 pico seconds. • Sample rates: 44.1kHz to 96kHz. • Sample Rate Clock Accuracy: +/- 20PPM • JetPLL technology providing superb jitter reduction for class leading converter performance. Mic Input • Frequency Response: 20Hz - 20kHz +/- 0.1 dB • THD+N: 0.001% (measured at 1kHz with a 20Hz/22kHz bandpass filter) • Noise: EIN > 125dB (128dB analogue to digital): measured at ~60dB of gain with 150 Ohm termination (20Hz/22kHz bandpass filter) Line Input • Frequency Response: 20Hz - 20kHz +/- 0.1dB • THD+N:
