Liquid 4PRE Mic Pres Four Channel Liquid Pre-amplifier with remote control and total recall

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Liquid 4PRE Four Channel Liquid Pre-amplifier with remote control and total recall

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Key Features Overview Liquid Technology Emulations & Settings Specifications System Requirements Operating Systems

Key FeaturesBack top

4 Liquid Pre-amps - 40 classic emulations

Focusrite's proven Liquid technology delivers unmatched sonic pre-amp variety and quality

Remote control software via ethernet

Liquid 4CONTROL enables comprehensive standalone pre-amp control of multiple units, direct from your DAW

Pro Tools Remote control plug-in

A TDM/RTAS Liquid 4CONTROL plug-in provides remote control as an integrated part of your Pro Tools session

Full recall of every parameter

99 Unit setup memories provide instant back-up of all settings, including pre-amp selection and gain.

Adjustable harmonic distortion

Accounts for variance in vintage originals whislt providing additional variance over the sound of every pre-amp emulation.

Optional Eight channel EtherSound output card

Effective connectivity for large studios, post production installs and live sound engineers using EtherSound.

Liquid TechnologyBack top

Liquid 4PRE provides reliable emulation of a wide range of vintage and classic units. It does this by emulating their sonic behaviour using sintefex's patented Dynamic Convolution; the application of a unique, level-dependant set of responses to an audio signal.

These measured responses, sampled at numerous levels and with a multitude of setting combinations, are applied to the input stream on a sample-bysample basis for extremely convincing results.

SpecificationsBack top

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)

Weight

• 8.6kg

• 19Ibs

Dimensions

• 484mm (W) x 85mm (H) x 270mm (D)

• 19" (W) x 3.5" (H) x 10.6" (D)

• 2U rackmount

Operating SystemsBack top

Use our OS checker to find the latest operating system support for your product. OS CHECKER

Compatible with:

Windows Vista
Mac 10.4
10.4.11 and above only. Windows Vista - 64bit
Mac 10.5
Windows XP
Service Pack 2 and above only. Windows XP - 64bit
Service Pack 2 and above only. Mac 10.6
Windows Windows 7
Windows Windows 7 - 64bit

NOT Compatible with:

Mac 10.3

OverviewBack top

Focusrite’s new LIQUID4PRE™ four-channel microphone pre-amplifier utilizes The Liquid Channel™’s proven Liquid™ technology, marrying a hugely flexible analogue front end with cutting-edge dynamic convolution DSP to deliver the sounds of 40 vintage and classic microphone pre-amplifiers across all four channels. Augmented by fully digital controls and remote software control over Ethernet, LIQUID4PRE provides the ultimate fluid multi-channel front-end.

99 Unit Setup Memories provide full 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 LIQUID4PRE’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 systems, providing all the benefits of a Pro Tools TDM/RTAS plug-in, such as comprehensive automation and session integration.

Emulations & SettingsBack top

Focusrite's emulations and settings will help you to make the most of your Focusrite Liquid products. You'll find a growing library of emulations, programs and snapshots, with helpful filters and information regarding the original unit emulated.

If wanting to find out more about what preamps are included in this download and on the Liquid 4PRE, follow the link to the Liquid Channel emulations listing below.

Liquid Channel Mic Pres Emulations

System RequirementsBack top

WINDOWS

Operating System*

• Pro Tools 7.1 or higher (only if using the Liquid 4Pre TDM / RTAS plugin)

Computer

• Network card supporting ethernet 10Base-T, 100Base-TX, or 1000Base-T

CPU/Clock

• 1.0 GHz Intel or compatible

Memory (RAM)

• 256MB or more

• 512MB or higher recommended

MAC

Operating System

• Pro Tools 7.1 or higher (only if using the Liquid 4Pre TDM / RTAS plugin)

Computer

• Apple Mac Power PC G4, G5 or Intel Mac (any)

CPU/Clock

• G4/800 MHz (minimum)

• G4/1.5GHZ or higher recommended

Memory (RAM)

• 256MB or more

• 512MB or higher recommended

IMPORTANT INFORMATION: FOCUSRITE, the FF logo, LIQUID TECHNOLOGY, LIQUID MIX CONTROL and the LIQUID MIX logo are trademarks of Focusrite Audio Engineering Ltd. DYNAMIC CONVOLUTION is a trademark of Sintefex Ltd. All other product names, trademarks, or trade names are the names of their respective owners, which are in no way associated, connected nor affiliated with Focusrite or its LIQUID MIX products and which have not endorsed Focusrite's LIQUID MIX products. These other product names, trademarks, and trade names are used solely to identify and describe the third party products the sonic behaviour of which was studied for the LIQUID MIX products, and to accurately describe the functionality of the Liquid Mix products. The Liquid Mix products are an independently engineered technology which utilises the patented process of Dynamic Convolution to actually measure examples of the sonic impact of original analogue products upon an audio stream, so as to electronically emulate the performance of the original product studied. The result of this process is subjective and may not be perceived by a user as producing the same effects as the original products studied.

*Benefit from the onboard DSP is reduced when used within Pro Tools.

Reviews

“ Sound On Sound Magazine Hugh Robjohns - March 2008 “Fortunately,... ”

Sound On Sound Magazine
Hugh Robjohns - March 2008

“Fortunately, technology moves on, and the Focusrite boffins have spent the last three years locked away in darkened rooms trying to find a way of reducing the size and complexity of the preamp circuitry without changing the fundamental way in which it works, its flexibility or, most importantly, its performance. The launch of the Liquid 4 Pre is the evidence that they have achieved their goal.”

“This is a very intensive number-crunching exercise, requiring a very powerful DSP - and with all four channels running at 192kHz, the Liquid 4 Pre DSP is processing 256 million samples per second!”

“The Liquid 4 Pre is unique - there is nothing else on the market with comparable tonal versatility.”

“So the Liquid 4 Pre sits amongst some venerable competition, but certainly isn’t shamed by any of it. Furthermore, for the price of any one of these units, the Liquid 4 Pre provides almost all of them at the flick of a switch. Food for thought.”

Downloads

Liquid 4Pre Software User Guide

This user guide covers the Liquid4Control software and the Liquid 4PRE Pro Tools plugin.
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L4Pre Hardware User Guide

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Liquid 4PRE software 1.1 - Including TDM/RTAS plug-in

This is Version 1.1 release of the Liquid4Control and Pro Tools plugin software for use with Focusrite Liquid 4PRE. After installation, it is important that you setup the 4Pre hardware on your network before running the Liquid4Control software. Network configuration details are included in the Liquid4Control user guide.

Once the Liquid 4Pre has been configured on the network, you can run the Liquid4Control software. The first time you run Liquid4Control, you may be prompted to update the firmware in your Liquid 4Pre hardware. It is important that you complete this update for all available hardware units.

The Liquid4Control software is compatible with both 32bit and 64bit versions of Window XP and Vista. Mac users must be running Mac OS Tiger 10.4.10 or later.

RELEASE NOTES:
+ L4Pre Plugin features improved overall performance, reliability & integration with Pro Tools
+ Liquid4Control features an all new Device Setup interface - much cleaner and easier to use with drag'n'drop device ordering
+ improved reliability of reconnection and device setup operation
+ fixed several issues with digital sync source selection
+ improved Pro Tools plugin instantiation and session reloading (new plugins load settings from hardware whilst reloaded sessions restore saved settings to hardware)
MAC Liquid 4Pre-1.1.dmg WIN Liquid4 Control Setup
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Answerbase

Liquid Preamp Gain Clicks Explained. I get clicks when operating the gain control on my Liquid Pre amp. Where can I find more emulations for my Liquid 4PRE? The Liquid 4PRE Ethersound Card How many settings can the Liquid 4PRE store? Where can I download the control software for my Liquid 4PRE?