Own 40 Mic Preamps in One 4-channel Unit!
Focusrite's Liquid 4Pre lets you apply 40 different emulations of sought-after preamps to each of its four channels, all with 192kHz clarity. Also featured: the classic Focusrite Analogue High-pass filter, phase reverse, and variable impedance. Software is included to control the Liquid 4Pre, which also features large VU-style digital displays.

Features:

• Four Liquid Mic pres, each providing emulations of the most revered mic pres in history
• 40 different emulations available to any of the four mic pres
• Total recall of every parameter across all four channels
• Remote control via Pro Tools plug-in
• Word clock in and out on BNC connectors
• AES and ADAT optical are provided as standard
• 192kHz internal processing and AD/DA included
• Classic Focusrite analog high-pass filter, phase reverse, and variable impedence
• Cascade multiple units into a single system
• LIQUID4CONTROL software provided to control single or multi-unit systems
• Large digital vU Meters, accurate and responsive
   

Liquid Technology
Liquid4Pre offers 99 Unit Setup Memories providing total recall of every parameter across all four channels, delivering instant multiple user presets and a comprehensive backup of session settings. These memories can be managed either via the hardware, or via Liquidpre’s dedicated control software, Liquid4control. This intuitive software application places comprehensive pre-amp control inside the DAW. Communication between Liquid4Pre and the DAW flows via Ethernet, with Liquid4Control providing comprehensive management of multiple Liquid4Pres. A similar Pro Tools TDM/RTAS plug-in allows integrated remote control via Pro Tools hardware and software, including Icon and Venue systems, providing all the benefits of a Pro Tools TDM/RTAS plug-in, such as comprehensive automation and session integration.

The unique ‘Harmonics’ and &lsquoSession Saver’ features from The Liquid Channel are also provided across all four Liquid4Pre channels. The adjustable harmonic distortion circuit accounts for variance in the vintage originals, but can also be used creatively to vary the sound of each pre-amp. Session saver is a unique automatic gain control circuit that intelligently reduces the input level to help avoid critical overs. Each channel also features a classic Focusrite highpass filter, phantom power and phase reverse, available directly from the front fascia independently for every channel. These controls sit alongside the four large information display screens which, as well as providing in-depth information of settings, also display huge digital VU meters, providing accurate, responsive and easy-to-read metering. A further feature essential for the LIVE sound arena is ‘Operator Lock’, which guarantees secure use in public arenas by locking the front panel controls to help avoid any unwanted alteration of pre-amps settings, including gain.

Converter performance
• Sample rate: 44.1, 48, 88.2, 96, 176.4 and 192kHz
• Bit depth: 24-bit

ADC
• SNR: 120dB measured with 20Hz/22kHz bandpass A-weighted filter
• Frequency response: ±0.05dB between 20Hz ? 22 kHz
• Maximum input level: +22dBu
• THD+N: 0.00035% (-109dB)

DAC
• Dynamic range: 116dB measured with 20Hz/22kHz bandpass A-weighted filter
• Frequency response: ±0.05dB between 20Hz / 22kHz
• Maximum output level: +22dBu
• THD+N: 0.0007% (-103dB)

Jitter
• Internal clock: < 20 pico-seconds
• AES digital output: < 200 pico-seconds
• External clock: < 1 nano-second
• Analogue and digital path

Mic pre
• Gain range: +6dB to +80dB, switched in 1dB steps
• Frequency response: variable, set by pre-amp chosen
• THD+N at analogue out: 0.001% measured with a +4dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• THD+N at AES digital out: 0.0005% measured with a +4dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• Mic noise: EIN = -126dB measured at 80dB of gain with 150 Ohm source impedance and 20Hz/22kHz bandpass filter
• Noise at analogue out: -92dBu measured at +6dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Noise at AES digital out: -119dBFS measured at + 6dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Maximum input level: +16dBu
• Input impedance: variable, set by preamp chosen
• CMRR: Transformer: 123dB @ 60dB of gain
• Electronic: 102dB @ 60dB of gain

Line input
• Gain range: 10dB to +10dB, switched in 1dB steps
• Frequency response: 0dB ±0.1dB between 20Hz and 20kHz
• THD+N at analogue out: 0.001% measured with a +18dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• THD+N at AES digital out: 0.0004% measured with a +18dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• Noise at analogue out: -92dBu measured at 0dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Noise at AES digital out: -120dBfs measured at 0dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Maximum input level: +22dBu
• High pass filter
• Roll off frequency: switchable between 75Hz and 120Hz, frequency measured at 6dB down point, 12dB per octave roll-off

Harmonics
• Distortion range: 0 to 15 where 15 (maximum) = 10% of 2nd-, 20% of 3rd- and 10% of 5th-order at 0dBFS (level-dependent distortion)

Compressor
In 'As Original' mode the parameter ranges will be the same as on the original unit being emulated. In 'Free' mode the parameter ranges are as follows:

• Threshold range: -40dB to 20dB switched in 1dB steps
• Ratio range: 1:1 to limit
• Attack range: 0.1ms to 2.5s
• Release range: 0.1ms to 2.5s
• Make-up gain: -20dB to +20dB switched in 0.5dB steps

EQ

High Shelf
• Frequency range: 200Hz to 20kHz
• Gain: +/-18dB

Mid Band
• Frequency range: 100Hz to 10kHz
• Gain: +/-18dB
• Q: variable between 0.8 and 2.5

Low Shelf
• Frequency range: 10Hz to 1kHz
• Gain: +/-18dB

Weight
• 8.6kg

Dimensions
• 484mm (W) x 85mm (H) x 270mm (D)
• 19" (W) x 3.5" (H) x 10.6" (D)
• 2U rackmount

Brochure

Manual

Software User Guide