Focusrite Platinum OctoPre LE Mode D'emploi page 32

SPECIFICATIONS
Mic Input Response
Gain = +13dB to +60dB
Input Impedance = 2.5k / 150 on Lo Z (Ch1 & 2)
EIN = 124dB @ 60dB Gain with 150
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/Octave 2 pole filter
Cut Off Frequency: -3dB @ 120Hz, -6dB @ 85Hz, -12dB @ 56Hz
Termination & 22Hz/22kHz Filter
Frequency Range:
OPTIONAL DIGITAL CONVERTER
DAC Performance
Playback Sample Frequency = 44.1kHz & 48kHz
Maximum Bit Depth = 24-bit
Maximum analogue output level = +22dBu
Dynamic Range = 107dB 'A' weighted
ADC Performance
Sample Frequency = 44.1kHz & 48kHz
Bit Depth = 24-bit
Maximum analogue input level = +22dBu (0dBfs)
Dynamic Range = 109.5dB 'A' weighted
Connections
Digital in/out: ADAT -type optical 'lightpipe'
Wordclock in/out: BNC
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