Mikrofon preamp med 40 klassiske preamp & compressor typer. Liquid teknologi.


Focusrite Liquid Channel er et revolutionerende værktøj for alle der arbejder med lyd. Ved hjælp af Convolution digitalteknologien, som man har set anvendt især i rumklange, kan man i Liquid Channel på det nærmeste genskabe effekten fra en lang række klassiske preamps og compressorer. Oven i købet i en kvalitet der er imponerende tæt på originalerne.

Men Liquid Channel stopper ikke her: I input-trinnet har man yderligere mulighed for at skifte mellem ialt 256 forskellige konfigurationer af modstande, kondensatorer, rør og trafo'er - nøje udvalgt, så de svarer til alle de gamle klassikere. Alle disse komponenters reaktion på lydsignaler i forskellige niveauer og kombinationer er samplet ved samtlige mulige indstillinger og indkorporeret i Liquid Channel, hvilket sikrer en troværdighed udover det sædvanlige. Som bekendt er der forskel på analog og digital behandling af lyd, så for at få den bedste kvalitet i det digitale domæne arbejder Liquid Channel internt ved 192 kHz som standard og sikrer derved maksimal frekvensgang. AD- og DA-konvertering sker ligeledes ved 192 kHz.

Foruden de mange preamps og compressorer har Liquid Channel en simpel 3-bånds EQ som også kan programmeres - og alle indstillingerne for hele kanalen gemmes i den interne hukommelse som holder 99 presets.

Man kan selvfølgelig også designe sine egne modeller, og endnu flere kan hentes fra Liquid Channels hjemmeside og overføres via USB.

Specifikationer:

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)
2U rackmount