Pro Audio Systems

• Technical Specifications

• Converter performance
• Sample rate: 44.1, 48, 88.2, 96, 176.4 and 192kHz
• Bit depth: 24-bit
• A/D
• Signal to Noise Ratio: 120dB measured with 20 Hz/22 kHz bandpass A-weighted filter
• Frequency Response: ±0.05 dB between 20 Hz – 20 kHz
• Maximum input level: +22 dBu
• THD+N: 0.0007% (-103 dB)
• D/A
• Dynamic Range: 118 dB measured with 20 Hz/22 kHz bandpass A-weighted filter
• Frequency Response: ±0.05 dB between 20 Hz – 20 kHz
• Maximum output level: +22 dBu
• THD+N: 0.001% (-100 dB)
• Jitter
• Internal Clock: <50 ps
• AES Output: <1 ns
• External Clock: <3 ns
• Mic Pre
• Gain Range: +14 dB to +80 dB, switched in 1dB steps
• Frequency Response: Frequency response and harmonic distortion variable, set by pre-amp emulation and harmonics setting chosen (figures shown for FLAT setting with zero harmonics)
• THD+N at analogue out: 0.001% measured with a +1 dBu 1 kHz input signal with 20 Hz/22 kHz bandpass filter, gain +14dB
• THD+N at AES out: 0.0007% measured with a +1 dBu 1 kHz input signal with 20 Hz/22 kHz bandpass filter, gain +14dB
• Mic Noise: EIN = -128 dB measured at >60 dB of gain with 150 ohm source impedance and 20 Hz/22 kHz bandpass filter
• Noise Analogue Out: -92 dBu measured at +14 dB gain with 20 Hz/22 kHz bandpass A-weighted filter
• Noise AES Digital Out: -119 dBFS measured at +14 dB gain with 20 Hz/22 kHz bandpass A-weighted filter
• Maximum Input Level: +8 dBu
• Input Impedance: Variable, set by pre-amp emulation chosen
• CMRR: Electronic: >85 dB @ 60 dB of gain
• Line Input
• Gain Range: +32 dB to –10 dB, switched in 1 dB steps
• Frequency Response: 0 dB ±0.1 dB between 20 Hz and 20 kHz
• THD+N at analogue out: 0.001% measured with a +18 dBu 1 kHz input signal with 20 Hz/22 kHz bandpass filter
• THD+N at AES out: 0.0007% measured with a +18 dBu 1 kHz input signal with 20 Hz/22 kHz bandpass filter
• Noise Analogue Out: -92 dBu measured at 0 dB gain with 20 Hz/22 kHz bandpass A-weighted filter
• Noise AES Digital Out: -120 dBFS measured at 0 dB gain with 20 Hz/22 kHz bandpass A-weighted filter
• Maximum Input Level: +22 dBu
• High Pass Filter
• Roll-off frequency: 75 Hz, frequency measured at –6 dB down point. 12 dB per octave roll-off
• Harmonics
• Distortion Range: 0 to 15 where maximum (15) = 10% of 2nd-, 20% of 3rd- and 10% of 5th-order at 0dBFS (level-dependant distortion)
• Rear Panel Connections
• Mic Inputs 1 to 4: XLR female
• Line Inputs 1 to 4: XLR female
• Line Outputs 1 to 4: XLR male
• AES Digital Input: XLR female
• AES Digital Outputs (CH 1+2 and CH 3+4): XLR male
• Wordclock Input: BNC, hi Z or 75 ohm input impedance (soft switchable)
• Wordclock Output: BNC, Low Z input impedance
• ADAT From Slave: Toslink optical Input socket
• ADAT Main Output and Aux Output: 2 x Toslink optical Output socket
• Ethernet Control: Ethernet (10baseT on RJ45)
• Ethersound (optional): Ethernet (RJ45)
• Weight and Dimensions
• Weight: 5.3 kg
• Dimensions: 484 mm (W) x 85 mm(H) x 270 mm (D)
• 2U rackmount

• Features

• 4 Liquid Pres, each loaded with 40 classic pre-amp emulations
  
• Delivers the most flexible four channel front end in history.
  
• Proven Liquid technology
  
• The same pre-amp technology as the industry standard Liquid Channel, marrying a hugely flexible analogue front end to cutting-edge dynamic convolution DSP, to deliver the finest vintage emulations.
  
• Total recall of every parameter across all four channels
  
• 99 Unit Setup Memories provide instant safety back-ups, multiple user sets, a backup of session settings.
  
• Remote control via dedicated software
  
• LIQUID4CONTROL provides comprehensive remote control over Ethernet, as well as management of multiple LIQUID4PREs, placing comprehensive pre-amp control inside the DAW or digital console.
  
• Remote control via ProTools hardware
  
• Exclusive plug-in allows integrated remote control via ProTools hardware and software, including Icon and Venue systems.*
  
• Adjustable harmonic distortion
  
• Accounts for variance in vintage originals whislt providing additional variance over the sound of every pre-amp emulation.
  
• Session saver
  
• An automatic gain control circuit intelligently reduces input level to help avoid critical overs.
  
• 192kHz internal processing and ADC/DAC as standard
  
• Pristine state-of-the-art conversion ensures every subtle nuance of the pre-amp emulation is preserved.
  
• Expandable library of emulations
  
• A growing number of additional vintage emulations are available for free via Focusrite's 'Liquid Assets' site.
  
• Classic Focusrite High Pass filter, Phantom power and Phase reverse
  
• These essential pre-amp features are selectable and editable independently for every channel.
  
• Simple multiple unit configurations
  
• Allows eight channels of audio from two units over a single ADAT or EtherSound connection, as well as much larger multi-unit configurations.
  
• Operator Lock Function
  
• Allows secure use in public arenas, avoiding any unwanted alteration of pre-amps settings, including gain.
  
• Optional EtherSound output card
  
• Allows eight channels of audio over Ethernet, providing effective connectivity for large studios, post production installs and live sound engineers using EtherSound.

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