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Motu 8D AVB Audio Interface - Used  From MOTU

AES3 / SPDIF / USB / AVB-TSN audio interface with DSP and mixing. In Used, Excellent condition

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MOTU

$417.00

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Ships immediately after order processed!
Payments as low as $36/mo.

What We Think

The MOTU 8D is one of those interfaces that quietly becomes the glue holding an entire digital studio together.

At first glance, it looks pretty specialized—and honestly, it is. But if your setup involves AES/EBU gear, S/PDIF devices, external converters, or networked audio, the 8D starts making a lot of sense very quickly. It’s less about flashy features and more about solving real-world routing and integration problems cleanly and reliably.

What really stands out is the flexibility. The ability to freely route audio between AES3, S/PDIF, USB, and AVB networking turns the 8D into much more than a simple interface. It can act as a converter, digital patchbay, monitor mixer, or bridge between otherwise incompatible systems—and it handles all of it in a way that feels surprisingly intuitive once you’re up and running.

The built-in sample rate conversion is also a huge plus. If you’ve ever tried integrating multiple digital devices running at different clock rates, you know how quickly things can get messy. The 8D takes a lot of that headache out of the equation, which makes hybrid digital setups feel far more manageable.

Sonically, it stays transparent and dependable. The conversion is clean, the clocking is solid, and the low-latency performance feels stable even in larger systems. It’s not trying to add color or personality—it’s designed to preserve the integrity of everything connected to it.

The AVB side of things is especially powerful. Once you start connecting multiple MOTU units over Ethernet, the workflow becomes incredibly scalable without turning into a cable nightmare. For studios growing into more complex routing or network audio environments, that flexibility is hard to overstate.

We also appreciate how practical it is day to day. The onboard DSP mixer, browser-based control, and comprehensive routing options make it feel like a serious utility tool rather than just another interface.

For engineers working with digital outboard, hybrid studios, broadcast systems, or AVB networking, the MOTU 8D is one of those deceptively powerful pieces that can simplify a complicated setup while keeping everything flexible, stable, and future-ready.

Manufacturer's Description from MOTU

The MOTU 8D is a compact, highly flexible digital audio interface designed to bridge professional AES3, S/PDIF, USB, and AVB networking workflows in studio, broadcast, and live sound environments.

Built around MOTU’s AVB platform, the 8D provides four channels of AES3 (AES/EBU) digital I/O on XLR connectors and four channels of S/PDIF I/O on RCA, with built-in sample rate conversion available on all inputs for seamless integration between digital devices operating at different clock rates.

More than a standard audio interface, the 8D functions as a digital router, splitter, format converter, and standalone mixer. Signals can be freely routed between AES3, S/PDIF, USB, and AVB network streams, allowing it to serve as the central hub for complex digital audio systems.

The 8D connects to Mac and Windows systems via high-speed USB 2.0, while integrated AVB-TSN Ethernet networking enables expansion with additional MOTU AVB interfaces over standard CAT-5e or CAT-6 cabling. The system supports ultra-low latency operation and scalable networked audio workflows with multiple devices and computers.

A built-in 48-channel DSP mixer provides extensive internal routing and low-latency monitoring, along with onboard effects processing that includes modeled vintage-style EQ, compression, gating, and reverb. The DSP engine operates with 32-bit floating point processing for high headroom and transparent audio performance.

The front panel features a full-color LCD display for comprehensive metering and system navigation, along with an assignable headphone output for convenient monitoring. Additional connectivity includes word clock I/O for synchronization with external digital systems.

Wireless browser-based control allows the 8D to be managed remotely from computers, tablets, and smartphones connected to the same network, making it equally effective in fixed installations, studio environments, and live production setups.

Compact, scalable, and highly adaptable, the MOTU 8D is a powerful solution for engineers who need flexible digital routing, format conversion, AVB networking, and dependable low-latency performance in a streamlined form factor.

MOTU

Specifications

  • Sample rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
  • Digital I/O:
    • 2x stereo AES3 (AES/EBU) on XLR male/female
    • 2x stereo S/PDIF on RCA
  • Total I/O:
    • 8 in / 8 out (16 total) at 1x sample rates
    • 8 in / 8 out (16 total) at 2x sample rates
    • n/a at 4x sample rates
  • Computer I/O:
    • 1 x USB 2.0 audio class compliant
    •       USB 3.0 and iOS compatible
  • Computer I/O channels:
    • 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)
  • Headphone: 1 x 1/4" TRS stereo phone (assignable)
  • 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
  • Front panel:
    • 1 x 1/4" TRS headphone output
    • 4x switches for menu navigation
    • 160 x 128 RGB LCD for level meters / menu
  • Power:
    • External 12-18V DC power supply
    • 1.0A max • tip pos or neg
  • Dimensions and weight:
    • (width x depth x height, enclosure only)
    • 8.6 x 7 x 1.75 inches
    • 22 x 17.75 x 4.5 cm
    • 2.0 lbs / 0.9 kg

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