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.
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).
Eight award-winning Focusrite pre-amps
Focusrite's unparalleled pre-amp legacy forms the foundation of this new device, with pre-amps optimized to handle extreme levels from sound sources like acoustic drums.
Eight ‘single-dial’ Focusrite Compressors
A single dial gets you to the right amount of compression, fast. These new VCA-based, feed-forward compressors model the character of the celebrated Focusrite Red 3.
Compress transparently or with effect
The classic soft-knee design achieves beautifully transparent compression that caresses your sound. Focusrite’s unique “More” switch doubles the ratio to deliver ‘compression with effect’.
Built-in eight channel 24-bit / 96 kHz digital outputs
Make the most of your interface's ADAT input for tracking, with eight channels of analogue to digital conversion via ADAT, boasting a ‘real world’ dynamic range performance of 110dB.
Built-in eight channel 24-bit / 96 kHz digital inputs
Switchable from the front panel, digital to analogue conversion via ADAT provides analogue monitoring of any digital ADAT feed, as well as the ability to clock from any ADAT device.
State-of-the-art Clocking Solutions
OctoPre MkII Dynamic's internal clock delivers a jitter performance of +/- 20 PPM. For external clocks, industry-standard JetPLL™ jitter elimination technology is employed
Two high-quality instrument inputs
OctoPre MkII Dynamic’s first two channels feature DI’s, ready for you to plug in your Guitars and Bass. No expensive external DI required.
Manufacturer Focusrite Model Octopre MKII Dynamic Dimensions (H x W x D) Unboxed: W = 484mm / 19”, H = 45mm / 1.8”, D = 265mm / 10.4”
Boxed: W= 595 mm / 23.5”, H= 120 mm / 4.75”, D= 340 mm / 13.4”)
Weight Single unit unboxed net weight : 3.6 kg / 7.3 lbs
Single unit boxed net weight : 4.05 kg / 8.9 lbs
PERFORMANCE Conversion A/D Dynamic Range 110dB ‘A-weighted’ (all inputs)
D/A Dynamic Range 110dB ‘A-weighted’ (all outputs)
Clock Jitter less than 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:Less than 0.001% (measured with 0dBFS input and 22Hz/22kHz bandpass filter)
Noise: -90dBu (22Hz/22kHz bandpass filter)
Instrument Input Frequency Response: 20Hz - 20kHz +/- 0.1dB
THD+N: 0.004% (measured with 0dBu input and 20Hz/22kHz bandpass filter)
Noise: -87dBu (20Hz/22kHz bandpass filter)
Analogue Outputs Frequency Response: 20Hz – 20kHz +/- 0.2dB
THD+N less than 0.0010% (-100dB) (measured with 0dBFS input 22Hz/22kHz bandpass filter, un-weighted)
CONNECTIVITY Analogue Inputs Mic / Line inputs on XLR Combo with auto-switching between Mic (XLR) and Line / Instrument (TRS)
Mic / Line / Instrument 1 & 2: 2 x XLR Combo on rear panel
Mic / Line 3-8: 6 x XLR Combo
Instrument: As above, switched to Instrument (inputs 1 & 2 only)
Analogue Outputs Line level 8 x ¼” TRS Jack
Nominal output level 0dBFS = 16dBu, balanced
Switching to enable monitoring of A/D inputs or ADAT inputs with ADDA switch
Digital I/O ADAT Out 1 & 2: 8 channels (44.1 / 48kHz), 4 channels S-MUX (88.2 / 96kHz, 8 channels total)
ADAT In 1 & 2: 8 channels (44.1 / 48kHz, ADAT 1 only), 4 channels S-MUX (88.2 / 96kHz, 8 channels total)
SPECIFICATIONS Gain and Levels Mic Gain: +10dB to + 55dB
Line 1-8 Gain: -10dB to +36dB
Instrument Gain: +10dB to +55dB
Phantom power switched in 4 channel groups on Mic. 1-4 and 5-8
Mic and instrument maximum input level +16dBu
Line maximum input level +26dBu
Compression Threshold Range: -44dBFS (Max setting) to -4dBFS (Min setting)
Compression Ratio Normal: 2:1, More: 4:1
Auto Make Up Gain: 4dB (Min setting), 18dB (Max setting)
Attack Time: 1.2ms, Release Time: 28ms (-3.5dB method)
Compression Curve: Classic Focusrite Soft Knee
THD+N (maximum at any compression threshold, input less than +16dBu, gain at minimum): less than 0.18%
Clock Sources 1. Internal clock
2. Sync to Word Clock Input
3. Sync to ADAT Input (ADAT 1 input only)
Front Panel Indicators Metering of analogue inputs (channels 1-8), 5 segment (-42, -18, -6, -3 and 0dBFS)
4 Sample Rate LED’s (44.1k, 48k, 88.2k & 96k)
3 Sync Source LED’s (Internal, Word Clock and ADAT)
‘Lock’ Indicator LED
ADDA Switch for analogue output source selection (A/D’s or ADAT inputs)
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