Focusrite OctoPre LE
Overview
OctoPre LE, the "lite edition" of the company's established OctoPre, brings Focusrite pre-amplification and A/D-D/A conversion to a new level of affordability for DAW and digital console users. OctoPre LE provides eight channels of pristine Focusrite preamps, including two "Super Channels" that offer mic impedance matching and instrument DI inputs plus other features.
With the optional A/D-D/A board installed, OctoPre LE brings more to the DAW via ADAT lightpipe than ever before, allowing users to make the most of often neglected ADAT inputs and outputs for tracking and monitoring. In addition, the A/D-D/A option provides wordclock in and out as well as being the only converter in its class to feature 256x clock - a must-have for Pro Tools engineers.
Extremely easy to use, OctoPre LE helps to save session time and engineer heartache. Auto switching front and rear panel inputs and total control of the digital I/O from the front fascia allow the unit to remain racked and patched, with every I/O solution available at the flick of a switch. In typical Focusrite fashion, the OctoPre LE upholds professional standards throughout, boasting class-leading specifications.
Specifications
Mic Input Response
Gain = +13dB to +60dB
Input Impedance = 2.5k/ 150 on Lo Z (Ch1 & 2)
EIN = 124dB @ 60dB Gain with 150 Termination & 22Hz/22kHz Filter
THD+N @ Min Gain (+13dB) = 0.0006% with 0dBu input & 22Hz/22kHz Filter
THD+N @ Max Gain (+60dB) = 0.003% with -36dBu input & 22Hz/22kHz Filter
THD+N @ Max Input (+9dBu) = 0.0008% with 22Hz/22kHz Filter
Frequency Response:
Min Gain (+13dB) with -13dBu input = -0.4dB @ 10Hz & -3dB @ 122kHz
Max Gain (+60dB) with -60dBu input = -2.3dB @ 10Hz & -3dB @ 67kHz
CMRR @ Max Gain (+60dB) = 80dB
Line Input Response
Gain = -10dB to +36dB
Input Impedance = 24k
Noise @ Unity Gain (0dB) = -88dBu with 22Hz/22kHz Filter
S/N Ratio relative to max headroom (+36dBu) = 124dB
S/N Ratio relative to 0dBfs (+22dBu) = 110dB
THD+N @ Unity Gain (0dB) = 0.001% with 0dBFS (+22dBu) input and
22Hz/22kHz Filter
Frequency Response @ Unity Gain (0dB) = -0.5dB @ 10Hz & -3dB @ 110kHz
Instrument Input Response
Gain = +13dB to +60dB
Input Impedance = 1M?
Noise @ Min Gain (+13dB) = -87dBu with 22Hz/22kHz Filter
Noise @ Max Gain (+60dB) = -42dBu with 22Hz/22kHz Filter
THD+N @ Min Gain (+13dB) = 0.001% with 0dBu input & 22Hz/22kHz Filter
Frequency Response @ Min Gain (+13dB) with -13dBu input = -0.4dB @ 10Hz &
-3dB @ 122kHz
Input Meter
Peak Level Moving Coil Meter
-24dBfs to +2dBfs (-2dBu to +24dBu), +22dBu = 0dBfs
Overload LED's triggered @ 0dBfs (+22dBu)
High Pass Filter
Roll off = 12dB per octave 2 pole filter
Cut off frequency:
-3dB at 120Hz
-6dB at 85Hz
-12dB at 56Hz
Weight
4.2 kg
Dimensions
480mm (W) x 44mm (H) x 265mm (D)
Inta Audio recommends the Focusrite OctoPre LE by Focusrite
The Focusrite OctoPre LE offers great value for money, features, build quality and reliability.
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