Focusrite Octopre platinum LE

Mic Input Response

• Gain = +13dB to +60dB
• Input Impedance = 2.5k / 150
• 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

Frequency Range

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