คำอธิบาย
Focusrite Red 8Pre Audio Interface with Thunderbolt 2, Pro Tools & Dante Connectivity
ออดิโออินเตอร์เฟส Focusrite RED 8Pre, 64 Inputs / 64 Outputs, 24-Bit / 192 kHz Sampling, Eight Red Evolution Microphone Preamps, Digitally Controlled Preamps, Low Round-Trip Latency: 1.67 ms, DigiLink I/O for Pro Tools | HD Included, Includes Focusrite Control Software, Red and Softube Plug-Ins
Expanding upon Focusrite‘s 4pre to provide even more in the way of channel real-estate and features, the Red 8Pre is a 64-input/64-output, high-resolution audio interface with dual Thunderbolt 2 connections, Pro Tools | HD support, and Dante connectivity via Ethernet.
The interface offers eight Red Evolution microphone preamps, with -129 dBu of EIN and 63 dB of gain, thus providing low noise floors and significant headroom. Also featured in these preamps is the “Air” effect, which recreates the sound of transformer-based mic pres from the ISA range.
All features of the preamps can be controlled from the front panel or from the included Focusrite Control software. In addition to housing the control surface, the front panel also features colored LCD displays and instrument inputs for high-gained 1/4″ sound sources. In total, you get 16 analog inputs and 18 analog outputs, with more provided via various expansion capabilities.
The Red 8Pre’s conversion system utilizes parallel path summing to achieve its low-noise, high-headroom performance. This path involves the operation of two matched converters running in parallel to increase the signal to noise ratio, both of which can perform at resolutions and sample rates of up to 24-bit/192 kHz, at dynamic ranges of 118 dB (on the A/D side) and 121 dB (on the D/A) side. With this setup, you get a THD+Noise rating that can be less than 0.0009%, as well as a flat frequency response ranging from 20 Hz to 35 kHz (±0.25 dB).
The Red 4Pre ships with the Softube Time and Tone bundle, the Red Plug-In Suite, a 6.6′ / 2.0m Thunderbolt cable, an IEC power cord, and software activation codes.
Features:
- 64 inputs / 64 outputs in total
- 16 analog inputs / 18 analog outputs
- Eight Red Evolution mic pres with ‘Air’ transformer emulation
- 24-bit/192 kHz conversion
- Up to 121 dB of dynamic range
- Parallel path summing conversion for lower noise
- Color LCD displays and assignable controls for simplified operation
- Allows for control via front panel and software
- Dual Thunderbolt-2 ports for daisy-chaining
- Supports direct Pro Tools | HD DigiLink connection
- Enabled for Dante
- 67ms round-trip latency allows you to record with plug-ins in real time
- Add up to 32 extra inputs and outputs via Ethernet connection
- Front-panel instrument inputs
- Focusrite Control software included
- Free plug-ins included
Specifications
| Channel Count |
Up to 64 x 64 |
| 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 |
| OS Compatibility |
Please visit our OS Compatibility Checker for more information on supported operating systems. |
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 |
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) |
All measurements taken at fixed input gain, Rs = 50Ω
| 0 dBFS Reference Level |
+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 |
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 gain |
| Min. Input Level |
-48dBu ±0.5 |
| Frequency Response |
20Hz – 35kHz ±0.2dB, min gain |
| THD + N |
-94dB (0.002%) @ -1dBFS (@ 11dB Gain) |
| Signal-to-Noise Ratio |
117dB ‘A’-Weighted (typical), min gain |
| HPF |
-3dB @ 80 ± 3Hz, 12dB/Octave, independently switchable per channel |
| Air Mode |
2dB boost at 10kHz and -2dB at 20Hz (ref 1kHz) |
All measurements taken at maximum output level, RL = 100kΩ
| 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) |
All measurements taken at maximum output level, RL = 100kΩ
| 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) |
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 |
| Mic Input to Input |
< -70dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Mic Input to Output |
< -100dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Output to Mic Input |
< -130dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Line Input to Line Input |
< -60dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Line Input to Output |
< -100dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Output to Line Input |
< -115dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Output to Output |
< -100dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Headphone to Headphone |
< -75dB; 20Hz – 20kHz (driven channel at -20dBFS) |
| Supported Sample Rates |
44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz at 24 bit |
| Clock Sources |
Internal, ADAT, S/PDIF, Word Clock, Loop Sync or from Dante Network Master |
| Channel Count |
2 Channels In |
| Instrument Inputs |
2 x 1/4″ TS stereo jack |
| Channel Count |
2 Stereo Channels Out |
| Headphone Outputs |
2 x 1/4″ TRS stereo jack |
| Channel Count |
Up to 64 In and 64 Out |
| Thunderbolt Ports |
2 x Thunderbolt Ports (Primary Port 1 and Primary Port 2) |
| Channel Count |
Up to 64 In and 64 Out (32 In and 32 Out per connection) |
| Primary Port |
2 x Mini DigiLink |
| Channel Count |
Up to 32 In and 32 Out |
| Input and Output |
2 x ethernet standard RJ45 connectors (Compatible with Cat 5e and above). |
| Channel Count |
8 In |
| Input |
1 x DB-25 connectors (AES59) |
| Channel Count |
16 In and 16 Out |
| Input |
2 x DB-25 connectors (AES59) |
| Output |
2 x DB-25 connectors (AES59) |
| 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 |
| 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) |
| Channel Count |
2 Out |
| Montor Outputs |
2 x 1/4″ TRS stereo jack |
| Loop Sync Input |
1 x BNC 75Ω port |
| Loop Sync Output |
1 x BNC 75Ω port |
| Word Clock Input |
1 x BNC 75Ω port |
| Word Clock Output |
1 x BNC 75Ω port |
| 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)). 12 x Switches (control over OLED menus & metering) |
| Height |
44mm/ 1.73″ |
| Width |
483mm/ 19.02″ |
| Depth (Chassis Only) |
340mm/ 13.39″ |
| PSU |
1 x Internal, 100-240V, 50/60Hz, consumption 65W. |
