MOTU 1248 - Thunderbolt and USB Audio Interface With AVB Networking and DSP (32x34, 4 Mic)

MOTU 1248 - Thunderbolt and USB Audio Interface With AVB Networking and DSP (32x34, 4 Mic)

MOTU 1248 - Thunderbolt and USB Audio Interface With AVB Networking and DSP (32x34, 4 Mic)

B&H # MA1248TBEIF MFR # 9300
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Product Highlights

  • Four Microphone Preamps With +48V
  • AVB Up to 256 Thunderbolt Channels
  • 48 Channel Software Mixer with DSP
  • Remote Control Using Web Application
  • 2x 8-Channel ADAT Optical and RCA S/PDIF
  • USB 2.0 Audio Compatibility
  • DSP Modeled EQ and Compression
  • V-Limit Prevents Digital Clipping
  • Digital Routing Through CAT-5e or CAT-6
  • Standalone Mixer Operation
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  • 1Description

The MOTU 1248 - Thunderbolt and USB Audio Interface With AVB Networking and DSP (32x34, 4 Mic) is designed for studio recording, installed sound, and live sound reinforcement applications such as mixing a band in a club or music venue. The 1U 19" rackmountable device features four balanced microphone inputs with individually switchable +48V phantom power, two dedicated hi-Z guitar inputs, 8 x 12 balanced analog with separate main and monitor outs, 2 x 8-channel ADAT optical, and RCA S/PDIF (with sample rate conversion), for a total of 32 inputs and 34 outputs. Additional I/O can be added to the system through AVB networking.

The audio interface utilizes ESS Sabre32 Ultra converters to provide a dynamic range of 123 dB (A-weighted 20 to 20,000 Hz) on balanced TRS analog outputs, a THD+N rating of -110 dB, and a total system latency of 32 samples (0.66 ms) while recording at up to 24-bit 192 kHz resolution. A front panel backlit 324 x 24 LCD provides detailed metering for all analog and digital I/O as well as provide a GUI for adjusting hardware settings.

Using Thunderbolt connectivity, the audio interface can stream 128 audio channels in and 128 channels out to the interface's physical outputs, the DSP-powered 48 digital routing matrix, or AVB audio network streams. The interface can also use high speed USB 2.0 (3.0 compatible) using class compliant drivers to work with most digital audio workstations.

The 48-channel digital mixer can mix physical inputs on the interface, audio channels from your host computer software, AVB audio network streams, or mixer outputs. It features seven stereo auxiliary busses, three groups, a reverb bus that can serve as an alternate 4th group, a main mix bus, and a separate monitor bus that can function as a solo buss.

The mixer includes 32-bit floating point precision DSP-powered models of three British analog console EQ profiles, a classic compressor module with optional peak/RMS operation, and a model of the legendary Telextronix LA-2A optical leveling amplifier with automatic gain control (AGC) characteristics. Each input channel strip features a high-pass filter, a gate, a four-band parametric EQ, and a compressor.

The device's digital routing matrix allows you to route any source signal such as an analog or digital interface input, computer channel, mixer bus output, or network stream to any destination such as an interface output, host software input, mixer input, or any other device (or computer) on the AVB network. A single input or stereo pair can also be split and sent to multiple destinations.

The first of its kind, this interface features an AVB Ethernet port that adopts the AVB industry networking standard for transporting high-bandwidth, low-latency audio and video over Ethernet. It was developed by the IEEE and enables connection to a second MOTU AVB audio interface (1248, 8M, or 16A) via a CAT-5E or CAT-6 Ethernet cable. The standard is open meaning it is not proprietary and will allow for open interoperability across different devices and brands.

The system can be further expanded through connection to a MOTU AVB Switch (sold separately), for five total devices and the capacity to stream over 512 channels on the network. Sixteen 8-channel network streams may be broadcast while simultaneously listening to sixteen 8-channel network streams. The AVB network provides its own network-wide time base for phase locking all connected devices and also allows one of the connected devices to be assigned as the master clock. An added benefit of the AVB network standard is the automatic device discovery for self-configuration, 100 meter cable runs, as well as the system's Stream Reservation Protocol which provides guaranteed Quality of Service (QoS) and an uninterrupted point-to-point network connection.

The audio interface's on-board DSP, mixing, device settings, and network audio routing can all be controlled through a web application running on a web browser from a laptop, tablet, or smartphone connected by wire or Wi-Fi to your local area network. This allows the interface to be controlled using Mac, Windows, Linux, iOS, and Android devices provided they share the same network. By connecting an Apple Airport or other Wi-Fi router directly to the interface with a standard Ethernet cable, the mixing and DSP controls of the interface can be managed using a Smartphone or tablet, without the need for a computer. This is useful for situations such as mixing live sound. A total of up to 12 independent stereo mixes can all be independently controlled by different engineers or musicians via Wi-Fi connected iPhones or iPads.

The device includes a collection of quick setup presets designed for different applications in the studio, on stage, or for installed sound such as a recording interface or network snake. Presets can be customized using the digital routing matrix as well as saved for future recall.

Audio Quality
Provides 123 dB dynamic range and a THD+N of -110 dB (0.0003%) at -1 dBFS, un-weighted, 1 kHz
66 Audio Channels
Features 4 mic inputs, 2 guitar inputs, 8 x 12 balanced analog with dedicated main and monitor outs, 2 x 8-channel ADAT optical, RCA S/PDIF (with SRC), and two independent phone outs for a total of 32 inputs and 34 outputs
Universal Connectivity
Connects to computer with Thunderbolt or high-speed USB 2.0 (compatible with USB 3.0) with class-compliant firmware and industry standard drivers to work with any audio software
On-Board DSP With Mixing And Effects
Provides flexible 48 input digital mixer modeled after large format mixing consoles with 12 stereo busses and DSP effects including reverb, 4-band EQ, gate, and compression
32-Bit Floating Point Processing
Provides ample headroom for mixing and effects DSP
Modeled Vintage Effects Processing
Provides classic reverb, compression modeled after historic LA-2A compressor, and EQ modeled after analog console EQs
System Expansion and Audio Networking
Allows you to add a 2nd MOTU AVB interface (1248, 8M, or 16A) with a Cat-5e or Cat-6 Ethernet cable and up to five devices using a MOTU AVB Switch (sold separately). Multiple interfaces can be networked together with over 100 meter cable runs to stream audio between devices and computers on the network
Matrix Routing and Splitting
Provides flexible digital matrix routing and splitting for any analog or digital input, computer channel or network stream to any computer, output, or network devices. A single input can be split to multiple output destinations
256 Channels of Network Audio I/O To Host Computer
Allows monitoring and recording of up to 128 network audio channels in and 128 network channels out through a Thunderbolt connection to a host computer
Web App Control
Controls on-board DSP, mixing, device settings, and network audio routing from web app software running in a web browser on a computer, laptop, tablet, or Smartphone connected by a wire or Wi-Fi to your local area network
Stand-alone Mixing With Wireless Control
Allows you to connect an Apple Airport or other Wi-Fi router directly to the audio interface with a standard Ethernet cable and control the device's mixing and DSP effects from a Smartphone or tablet, without a computer such as in live sound mixing applications
ADAT Digital I/O
Allows connection of outboard digital processors, digital mixers or other gear, 16 channels at 44.1/48 kHz or 8 channels at 88.2/96 kHz
Comprehensive Metering
Features large backlit 324 x 24 LCD that allows you to view all signal activity at a glance with detailed metering of analog and digital I/O, as well as access to hardware settings from font panel GUI
UPC: 839128005907
In the Box
MOTU 1248 - Thunderbolt and USB Audio Interface With AVB Networking and DSP (32x34, 4 Mic)
  • Power Cord
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Sample Rates 44.1, 48, 88.2, 96, 176.4, 192 kHz
    Microphone Inputs 4x XLR mic inputs
    Preamp gain: 0 to +63 dB (digitally controlled)
    Analog Inputs 2x 1/4" hi-Z guitar inputs (front panel)
    8x 1/4" TRS line inputs (balanced/unbalanced)
    Max Level: +24 dBu (digitally adjustable +2 to +24)
    Analog Outputs 12x 1/4" TRS line out (balanced)
    Max Level: +20 dBu (digitally adjustable -4 to +20)
    2x 1/4" TRS stereo headphone
    Digital I/O 2 banks (16 ch) of ADAT optical at 1x sample rates
    1 bank (8 ch) of SMUX optical at 2x sample rates
    Stereo RCA S/PDIF up to 96 kHz (with SRC on input)
    Total I/O Channels 32 inputs and 34 outputs (66 total) at 1x sample rates
    24 inputs and 26 outputs (50 total) at 2x sample rates
    14 inputs and 16 outputs (30 total) at 4x sample rates
    Computer I/O 1x Thunderbolt (compatible with 1 and 2)
    1x USB 2.0 audio class compliant (3.0 compatible)
    Sync 1x word clock in
    1x word clock
    Headphone 2x 1/4" TRS stereo phone (assignable)
    Phantom Power 4x individual +48V
    Front Panel 2x 1/4" TRS headphone output
    2x TRS hi-Z guitar input
    2x digital rotary encoders, main/monitor volume
    2x digital rotary encoders, phone volume
    2x digital rotary encoders, guitar input gain
    4x digital rotary encoders, mic preamp gain
    8x switches, (4) Pad and (4) 48V Phantom switch
    324 x 24 pixel LCD for level meters / menu nav
    1x AC power switch
    Dynamic Range Line Output: 123 dB A-weighted
    Line Input: 117 dB A-weighted
    Mic Input: 118 dB A-weighted
    Phones: 108 dB A-weighted
    THD + N Line Output: -110 dB
    Line Input: -110 dB
    Mic Input: -110 dB
    Phones: -100 dB
    Maximum Level Line Output: +20 dBu
    Line Input: +24 dBu
    Mic Input: +24 dBu (with pad)
    Phones: Max 80 mW
    Gain Trim Range Line Output: 24 dB (-4 to +20 dBu) in 1 dB steps
    Line Input: 22 dB (+2 to +24 dBu) in 1 dB steps
    Mic Input: 63 dB in 1 dB steps
    Phones: 128 dB in 1 dB steps
    Mac 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 or high-speed USB 2.0 port
    A large hard drive (at least 500 GB for recording)
    Windows Requirements *Windows support coming soon
    1 GHz Pentium-based PC compatible or faster
    2 GB RAM, 4 GB or more recommended
    Windows 8 or later
    Available Thunderbolt or high-speed USB 2.0 port
    A large hard drive (at least 500 GB for recording)
    Remote Control Any web client platform: Mac, Windows, Linux, iOS, Android
    Any web browser: Safari, FIrefo, Chrome, Opera, Explorer, etc
    Web client must be connected to the same network as the MOTU AVB interface by wire or Wi-Fi
    Operating Systems For computer audio I/O: Mac OS X 10.8 or later; Windows 8 or later
    For web app control: Mac, Windows, Linux, iOS, Android
    Mac Compatible Core Audio Drivers for MAC OS X
    MOTU Digital Performer
    Avid Pro Tools (version 9 or later)
    Apple Logic Pro
    Apple Logic Express
    Apple Garage Band
    Apple SoundTrack Pro
    Ableton Live
    Propellerhead Record and Reason
    Steinberg Cubase
    Cockos Reaper
    Native Instruments Kontakt
    Waves Stand-Alone Apps (and plug-ins via compatible host)
    Windows Compatible WAVE and ASIO drivers for Windows 8
    MOTU Digital Performer
    Avid Pro Tools (version 9 or later)
    Ableton Live
    Cakewalk Sonar
    Steinberg Cubase
    Propellerhead Record and Reason
    Image Line FL Studio
    Sony Vegas Pro
    Sony Sound Forge
    Sony Acid
    Cockos Reaper
    Native Instruments Kontakt
    Waves stand-alone apps (and plug-ins via compatible host)
    Power International 100 to 240 VAC autoswitching supply 50/60 Hz
    0.5 A max
    Current Draw 0.5 A max
    Rackmountable 1U
    Dimensions Not specified by the manufacturer
    Weight Not specified by the manufacturer
    Packaging Info
    Package Weight 7.95 lb
    Box Dimensions (LxWxH) 23.5 x 11.4 x 5.3"

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