52 simultaneous audio channels
24 inputs and 28 outputs, all independent

Connect all your studio gear, including microphones, guitars, synths, keyboards, drum machines, outboard processors and optical expanders. All I/O is available simultaneously.

Superb analog audio quality
Renowned ESS Sabre32 Ultra DAC technology
Renowned ESS Sabre32 DAC technology delivers measured 123 dB dynamic range and the same proven, award-winning audio quality as MOTU’s flagship 1248.

Redesigned mic channels
Cutting-edge components deliver ultra-transparent sound
Eight transparent mic preamps deliver superb -108 dB THD+N, 118 dB dynamic range and -129 dBu EIN performance. Each mic channel has individual preamp gain, pad, 48V phantom power and digital remote control.

High-performance Thunderbolt and USB drivers for Mac and PC
Ultra-low latency and renowned rock-solid performance
Round-trip latency (RTL) performance as low as 1.6 ms at 96kHz over Thunderbolt with high-performance DAW hosts.

Universal connectivity
USB and Thunderbolt for Mac, PC and iOS
Connect to your Mac or PC with Thunderbolt or Hi-speed USB 2.0, with up to 256 audio channels (128 in and 128 out) over Thunderbolt. Or stream dozens of audio channels to and from your Mac over AVB/TSN Ethernet using a standard, affordable CAT-5e cable up to 100 meters long. Class-compliant firmware and industry standard drivers work with any audio apps. Connect to your iPad with a standard camera connection kit (adapter).

Technical Specifications

Sample rates
44.1, 48, 88.2, 96, 176.4, 192 kHz
Mic/line/instr inputs
8 x XLR/TRS “combo style” mic/line/instr inputs
Preamp gain: 0 to +63 dB (digitally controlled)
TRS max level with pad: +17 dBu
Analog outputs
8 x 1/4″ TRS line out (balanced, DC coupled)
Max level: +20 dBu (digitally adjustable -4 to +20)
2 x 1/4″ TRS stereo headphone
Digital I/O
2 banks (16 ch) of ADAT optical at 1x sample rates
2 banks (8 ch) of SMUX optical at 2x sample rates
Switchable to stereo TOSLink (optical S/PDIF)
Total I/O
24 in / 28 out (52 total) at 1x sample rates
16 in / 20 out (36 total) at 2x sample rates
8 in / 12 out (20 total) at 4x sample rates
Computer I/O
1 x Thunderbolt 1 (Mac and Win)
Thunderbolt 2 & 3 compatible
1 x USB 2.0 audio class compliant
USB 3.0 and iOS compatible
Computer I/O channels
Thunderbolt
128 in/out at 1x (44.1 to 48 kHz)
128 in/out at 2x (88.2 to 96 kHz)
64 in/out at 4x (176.4 to 192 kHz)
Computer I/O channels
USB
64 in/out at 1x (44.1 to 48 kHz)
32 in/out at 2x (88.2 to 96 kHz)
24 in/out at 4x (176.4 to 192 kHz)
Sync I/O
1 x BNC word clock in/out
Network I/O
1 x RJ45 AVB/TSN Ethernet (1 Gbps)
AVB streams (8 channels per stream)
4 in / 4 out @ 44.1 or 48 kHz
4 in / 4 out @ 88.2 or 96 kHz
2 in / 2 out @ 176.4 or 192 kHz
Headphone
2 x 1/4″ TRS stereo phone (assignable)
Phantom power
8 x individual +48V
Front panel
2 x 1/4″ TRS headphone output
2 x digital rotary encoders ?? phone vol
4 x digital rotary encoders ?? mic/instr input gain
2 x large digital rotary encoders ?? main vol / menu
8 x small switches ?? (4) Pad / (4) 48V Phantom pwr
10 x large switches ?? menu nav / A-B select, etc.
2 x LCD (128 x 160) for level meters / menu nav
Power
International 100-240V autoswitching supply
50-60 Hz ?? 0.5A max
Dimensions and weight
(width x depth x height, enclosure only)
19 x 7 x 1.75 inches
48.3 x 17.75 x 4.5 cm
4.6 lbs / 2.05 kg
with rack brackets removed:
17.25 inches (43.8 cm) wide
4.5 lbs / 2.04 kg
Mac System Requirements
1 GHz Intel-based Mac or faster
2 GB RAM; 4 GB or more recommended
Mac OS X version 10.8 or later
Available Thunderbolt 1/2/3, USB 2/3 or AVB/TSN Ethernet port*
A large hard drive (at least 500 GB for recording)
*AVB/TSN Ethernet audio interface operation requires OS X El Capitan or later
Windows System Requirements
1 GHz Pentium-based PC compatible or faster
2 GB RAM; 4 GB or more recommended
Windows 7, 8 or 10
Available Thunderbolt 1/2/3 or USB 2/3 port
A large hard drive (at least 500 GB for recording)
Web App Support
Any web client platform: Mac, Windows, Linux, iOS, Android
Any web browser: Safari, Firefox, Chrome, Opera, Explorer, etc.
Included Software
Thunderbolt and USB 2.0 drivers
MOTU Discovery App for Mac & PC (finds connected MOTU interfaces)
MOTU Discovery App for iOS (available from Apple App Store)
MOTU Pro Audio Control web app (served from the hardware itself)
MOTU Audio Tools (FFT, oscilloscope, X-Y plot, phase analyzer)
AudioDesk for Mac & Windows (separate download)
Operating Systems
For computer audio I/O: Mac OS X 10.8 or later; Windows 7 or later
For web app control: Mac, Windows, Linux, iOS, Android

SKU: MOTU-8PREES-9385 Category:

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