Interface audio Thunderbolt

Focusrite Red 8Pre

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Interface audio Thunderbolt de la marque Focusrite

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Fabricant : Focusrite
Modèle : Red 8Pre
Catégorie : Interfaces audio Thunderbolt
Autres dénominations : red8pre, red 8 pre, red8 pre

Interface audionumérique 64 canaux Thunderbolt compatible Pro Tools HD et Dante

Simultaneous Inputs & Outputs

Channel Count

Up to 64 x 64

System Requirements

Computer	Apple Mac with at least one Thunderbolt or Thunderbolt 2 port (2m Thunderbolt cable included)
Other	Internet connection for downloading and installing software and driver

Microphone Inputs

All measurements taken at maximum gain unless otherwise stated, Rs = 150Ω

Gain Range	0-8dB to 63dB in 1dB steps
Type	Electronically Balanced, Zin = 6.2kΩ
Max. Input Level	+19dBu ±0.5, min gain
Min. Input Level	-44dBu ±0.5
Frequency Response	20Hz - 35kHz ±0.2dB, min gain
THD + N	-101dB (0.0009%) @ -1dBFS (@ 11dB Gain)
EIN	-129dBu 'A'-Weighted (typical)
Signal-to-Noise Ratio	119dB 'A'-Weighted (typical), min gain
Common-Mode Rejection Ratio	50/60Hz CMRR: -70dB
Phantom Power	+48V, independently switchable per channel.
HPF	High-Pass Filter (HPF): -3dB @ 80 ± 3Hz, 12dB/Octave, independently switchable per channel
Air Mode	2dB boost at 10kHz and -2dB at 20Hz (ref 1kHz). Input impedance drop to 2.2kΩ

Line Inputs 1-8

All measurements taken at maximum gain unless otherwise stated, Rs = 50Ω

Type	Electronically Balanced, Zin = 10kΩ
Max. Input Level	+27dBu ±0.5, min gain
Min. Input Level	-36dBu ±0.5
Frequency Response	20Hz - 35kHz ±0.2dB, min gain
THD + N	-101dB (0.0009%) @ -1dBFS (@ 11dB Gain)
Signal-to-Noise Ratio	119dB 'A'-Weighted (typical), min gain
Common-Mode Rejection Ratio	50/60Hz CMRR: -70dB
HPF	High-Pass Filter (HPF): -3dB @ 80 ± 3Hz, 12dB/Octave, independently switchable per channel
Air Mode	2dB boost at 10kHz and -2dB at 20Hz (ref 1kHz)

Line Inputs 9-16

All measurements taken at maximum gain unless otherwise stated, Rs = 50Ω

0 dBFS Reference Levels	+27dBu ±0.5
Type	Electronically Balanced, Zin = 20kΩ
Frequency Response	20Hz - 35kHz ±0.2dB
THD + N	-104dB (0.0006%) @ -1dBFS
Signal-to-Noise Ratio	119dB 'A'-Weighted (typical)
Common-Mode Rejection Ratio	50/60Hz CMRR: -70dB

Instrument Inputs

All measurements taken at maximum gain unless otherwise stated, Rs = 600Ω

Gain Range	0-8dB to 63dB in 1dB steps
Type	Zin = 2.3MΩ
Max. Input Level	+15dBu ±0.5
Min. Input Level	-48dBu ±0.5
Frequency Response	20Hz - 35kHz ±0.2dB
THD + N	-94dB (0.002%) @ -1dBFS
Signal-to-Noise Ratio	117dB 'A'-Weighted (typical)
HPF	-3dB @ 80 ± 3Hz, 12dB/Octave, independently switchable per channel
Air Mode	2dB boost at 10kHz and -2dB at 20Hz (ref 1kHz)

Line Outputs 3-18

All measurements taken at maximum gain unless otherwise stated, Rs = 100Ω

0 dBFS Reference Levels	+18dBu ±0.5
Frequency Response	20Hz - 35kHz ±0.2dB
THD + N	<-102dB (0.0008%) unweighted, 20Hz - 20kHz; -1dBFS input
Dynamic Range	121dB 'A'-weighted (typical), 20Hz - 20kHz
Output impedance	Nominal output impedance = 136Ω balanced (68Ω each phase)

Monitor Outputs

All measurements taken at maximum output level, RL = 600Ω

Frequency Response	20Hz - 35kHz ±0.2dB
Dynamic Range	+120dB (A-Weighted)
Maximum Output Level (0 dBFS)	+18dBu ±0.5
THD+N	<-78dB (0.0012%) unweighted, 20Hz - 20kHz; -1dBFS input
Stereo Level Balance	±0.02dB @ 997Hz
Output impedance	Nominal output impedance = 136Ω balanced (68Ω each phase)

Headphone Output

All measurements taken at maximum output level, RL = 600Ω

0 dBFS Reference Levels	+16dBm ± 0.1dB
Frequency Response	20Hz - 20kHz ±0.2dB
THD + N	<-75dB (0.018%) unweighted, 20Hz - 20kHz
Stereo Level Balance	±0.05dB @ 997Hz
Dynamic Range	114dB 'A'-weighted (typical), 20Hz - 20kHz
Output Impedance	10Ω
Headphone Impedance	32Ω - 600Ω

Crosstalk

Microphone Crosstalk

Mic Input to Input	< -70dB; 20Hz - 20kHz (all other channels at 0dBFS)
Mic Input to Output	< -100dB; 20Hz - 20kHz (all other channels at 0dBFS)
Output to Mic Input	< -130dB; 20Hz - 20kHz (all other channels at 0dBFS)

Line Crosstalk

Line Input to Line Input	< -60dB; 20Hz - 20kHz (all other channels at 0dBFS)
Line Input to Output	< -100dB; 20Hz - 20kHz (all other channels at 0dBFS)
Output to Line Input	< -115dB; 20Hz - 20kHz (all other channels at 0dBFS)

Output Crosstalk

Output to Output

< -100dB; 20Hz - 20kHz (all other channels at 0dBFS)

Headphone Crosstalk

Headphone to Headphone

< -75dB; 20Hz - 20kHz (all other channels at 0dBFS)

Digital Performance

Supported Sample Rates	44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (-4% / -0.1% / +0.1% / +4.167%) at 24 bit
Clock Sources	Internal, ADAT, S/PDIF, Word Clock, Loop Sync or from Dante Network Master

Front Panel Connectivity

Instrument Inputs

Channel Count	2 Channels In
Instrument Inputs	2 x 1/4" TS stereo jack

Headphone Outputs

Channel Count	2 Stereo Channels Out
Headphone Outputs	2 x 1/4" TRS stereo jack

Rear Panel Connectivity

Thunderbolt

Channel Count	Up to 64 In and 64 Out
Thunderbolt Ports	2 x Thunderbolt Ports (Primary Port 1 and Primary Port 2)

Pro Tools|HD

Channel Count	Up to 64 In and 64 Out (32 In and 32 Out per connection)
Primary Port	2 x Mini DigiLink

Dante

Channel Count	Up to 32 In and 32 Out
Input and Output	2 x ethernet standard RJ45 connectors (Compatible with Cat 5e and above).

Mic Inputs

Channel Count	8 In
Input	1 x DB-25 connectors (AES59)

Line Level

Channel Count	16 In and 16 Out
Input	2 x DB-25 connectors (AES59)
Output	2 x DB-25 connectors (AES59)

ADAT

Channel Count	Up to 16 In and 16 Out
Input	2 x TOSLINK connector
Output	2 x TOSLINK connector
Channel Assignments @ 44.1 kHz, 48 kHz	Port 1 = Channels 1 - 8 , Port 2 = Channels 9 - 16
Channel Assignments @ 88.2 kHz, 96 kHz	SMUXI: Port 1 = Channels 1 - 4, Port 2 = Channels 5 - 8
Channel Assignments @ 176.4 kHz, 192 kHz	SMUXII: Port 1 = Channels 1 - 2 , Port 2 = Channels 3 - 4

S/PDIF

Channel Count	2 In and 2 Out (Optical up to 96kHz)
Input	1 x RCA phono socket (1 x TOSLINK up to 96kHz)
Output	1 x RCA phono socket (1 x TOSLINK up to 96kHz)

Monitor Outputs

Channel Count	2 Out
Montor Outputs	2 x 1/4" TRS stereo jack

Loop Sync

Word Clock Input	1 x BNC 75Ω port
Word Clock Output	1 x BNC 75Ω port

Word Clock

Word Clock Input	1 x BNC 75Ω port
Word Clock Output	1 x BNC 75Ω port

PSU

PSU	1 x IEC Input

Front Panel Indicators

OLED Screens	3 x Screens (menus and metering)
Control Functions	2 x Encoders (menu navigation, channel functions (Gain, +48V, Phase, HPF, Air and Mic/Line/Inst) monitor and headphone outputs (Level, Mute and Dim)). 8 x Switches (control over OLED menus & metering)