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Metric Halo ULN-2 3d USB Type-C Audio Interface with 2 Preamps & DSP

Metric Halo ULN-2 3d USB Type-C Audio Interface with 2 Preamps & DSP

B&H # MEULN23D MFR # 000-50021
Metric Halo ULN-2 3d USB Type-C Audio Interface with 2 Preamps & DSP

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Product Highlights

  • USB Type-C Computer Interface
  • Integrated DSP with Over 100 Plug-Ins
  • Software Mixing, Recording & Monitoring
  • Up to 24-Bit / 96 kHz AD/DA Conversion
  • 2 x Mic/DI/Line Inputs with 1/4" Inserts
  • 1/4" Main, Monitor & Headphone Outputs
  • ADAT, AES3 & S/PDIF Digital I/O
  • Word Clock & MH Link I/O
  • Per-Channel Input Trim & Phantom Power
  • Compatible with Mac, Windows, iOS, Linux
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This item is noncancelable and nonreturnable.

$0 VA Sales Tax Collected on This Item
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Metric Halo Mobile I/O ULN-2 overview

  • 1Description

The Metric Halo ULN-2 3d is a USB Type-C audio interface offering two mic preamps, multichannel digital I/O, DSP-powered mixing, and software control for musicians, engineers, and producers in studios and mobile setups. Its integrated dual-core DSP powers a variety of plug-ins—the included DSP+ license unlocks over 100 of them—without burdening your computer's CPU. Robust software ensures easy access to multitrack recording, mixing, monitoring, and more.

The ULN-2 3d's 24-bit / 96 kHz converters are fed via two mic/DI/line XLR-1/4" combo inputs, which feature stepped preamp gain controls, adjustable input trims, and phantom power. Analog outputs are presented on 1/4" jacks, and include stereo main outs with selectable operating level, stereo monitor outs with a dedicated volume knob, and a headphone jack also with its own volume control. The ULN-2 3d accommodates insertion of analog outboard gear via balanced 1/4" insert connections.

Properly synchronize with other digital equipment through the BNC word clock connectors, or consolidate audio, clock, and data I/O with other 3d-equipped Metric Halo interfaces via the MH Link ports. The preinstalled MH EdgeCard provides stereo AES3 and S/PDIF I/O in addition to the ULN-2 3d's standard eight-channel ADAT optical ports. The interface's front panel is packed with comprehensive metering and status indicators, showing vital information at a glance. The ULN-2 3d connects to a compatible Mac, Windows, iOS, or Linux device via the supplied USB Type-A to USB Type-C cable. Power it with the included power supply or via a 4-pin XLR power system (available separately).

3d Card Features
  • MH Link: Low-latency, high-bandwidth audio, clock, and data connections via Gigabit Ethernet
  • MH Link Audio: Direct Ethernet Core Audio driver (with support for up to 128 channels of I/O at 192 kHz)
  • MH EdgeBus: A high-bandwidth, programmable, and pluggable audio expansion slot that accommodates a range of I/O expansion cards
  • MH Console: A 64-bit application to control your entire system with a simple, efficient, and flexible routing model (macOS only for Early Access versions)
  • MH Mixer: 128-input / 64-bus unified zero-latency mixer
  • MH MonitorControl: Integrated surround-capable monitor controller with system processing capability
  • MH Record: 128-input multitrack recorder with deep hardware integration
  • MH DSP Engine: Dual-core processing power and 1GB memory in the hardware, plus the +DSP license providing over a hundred plug-ins and the Metric Halo Graph environment
Analog I/O
  • Second-generation preamp and analog technologies
  • Two mic/DI/line inputs via Neutrik XLR-1/4" combo jacks
  • Up to 72 dB of gain via stepped 12-position rotary controls
  • Per-channel trim control offers up to 20 dB of passive attenuation
  • Two balanced line-level insert sends and returns via 1/4" TRS jacks
  • Allows insertion of analog outboard gear after ULN-2 preamps and before ULN-2 A/D converters
  • Stereo 1/4" main outputs with selectable +4 / -10 operating level
  • Stereo 1/4" monitor outputs with front-panel level control
  • Stereo 1/4" headphone output with dedicated level control
Digital I/O
  • Eight channels of ADAT digital I/O via TOSLINK optical ports (switchable to two-channel S/PDIF)
  • Pre-installed MH EdgeCard
  • Stereo AES3 digital I/O via XLR 3-pin connectors
  • Stereo S/PDIF digital I/O via coaxial connectors
  • Word clock I/O via BNC jacks for proper clocking of multiple digital devices using word clock or SuperClock
Informative Front Panel
  • Two ten-segment LED input meters
  • Two ten-segment LED output meters
  • LED indicators for sample rate, clock source/status, power, and more
Flexible Operation
  • Powered via included power supply or 4-pin XLR power system (available separately)
  • Supports operation with host computer via USB connection
  • Supports standalone operation with ten snapshots for easy storing/recall of configuration presets
Included Accessories
  • IEC power cable and external power supply
  • USB Type-A to USB Type-C cable
  • 1' Cat5e patch cable for MH Link between interfaces
  • Two rack ears with fasteners
  • Four rubber feet
  • MIO software CD-ROM
UPC: 832081000491
In the Box
Metric Halo ULN-2 3d USB Type-C Audio Interface with 2 Preamps & DSP
  • IEC Power Cable
  • 24 VDC / 48W External Power Supply
  • USB Type-A to USB Type-C Cable
  • 1' Cat5e MH Link Patch Cable
  • 2 x Rack Ears with Fasteners
  • 4 x Rubber Feet
  • Preinstalled MH EdgeCard (AES, S/PDIF)
  • MIO Software CD-ROM
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Metric Halo Mobile I/O ULN-2 specs

    Channels of I/O Analog:
    2 Inputs / 2 Outputs at 96 kHz
    0 Inputs / 2 Outputs at 192 kHz
    8 Inputs / 8 Outputs at 48 kHz
    2 Inputs / 2 Outputs at 192 kHz
    Max Sample Rate/Resolution 192 kHz / 24-Bit

    Maximum Resolution for AD/DA Conversion is 24-Bit / 96 kHz. At 176.4 kHz and 192 kHz, ADCs are Disabled, While the DACs are Functional, but Run with Reduced Fidelity.

    Display and Indicators 2 x Multi-Segment LED Meters (Input Level)
    2 x Multi-Segment LED Meters (Output Level)
    4 x LEDs (Sample Rate)
    5 x LEDs (Clock Source)
    3 x LEDs (Host Connection, Power)
    2 x LEDs (Input Selection, Output Selection)
    Host Connection 1 x USB Type-C
    Analog I/O 2 x Combo XLR / 1/4" TRS Balanced Mic/Line/Hi-Z Input
    2 x 1/4" (6.3 mm) TRS Balanced Insert Output
    2 x 1/4" (6.3 mm) TRS Balanced Insert Input
    2 x 1/4" (6.3 mm) TRS Balanced Line Output
    2 x 1/4" (6.3 mm) TRS Balanced Monitor Output
    1 x 1/4" (6.3 mm) TRS Unbalanced Headphone Output
    Phantom Power +48 V (Selectable on Individual Inputs)
    Digital I/O 1 x TOSLINK / ADAT (I/O) Input
    1 x TOSLINK / ADAT (I/O) Output
    1 x RCA Coaxial / S/PDIF (I/O) Input
    1 x RCA Coaxial / S/PDIF (I/O) Output
    1 x 3-Pin XLR Female / AES/EBU (I/O) Input
    1 x 3-Pin XLR Male / AES/EBU (I/O) Output
    1 x BNC (Word Clock) Input
    1 x BNC (Word Clock) Output
    1 x RJ45 (MH Link) Input
    1 x RJ45 (MH Link) Output
    MIDI I/O None
    Memory Card Slot None
    Frequency Response 18 Hz to 20 kHz ±0.1 dB 
    8 Hz to 50 kHz ±1 dB 
    3 Hz to 100 kHz ±3 dB 
    Gain Range Mic Inputs:
    +6 dB to +72 dB
    Hi-Z Inputs:
    -3 dB to +63 dB
    Dynamic Range A/D Converters:
    110 dB 
    D/A Converters:
    120 dB 
    Impedance Hi-Z Inputs:
    200 kOhms (Balanced) 
    Mic Inputs:
    3.3 kOhms (Balanced) 
    THD Mic Inputs:
    SNR Inputs:
    110 dB 
    Line Outputs:
    120 dB 
    EIN -130.5 dBu 

    Measured with 150-Ohm Source

    Crosstalk -132 dB

    Measured with Trim Link Disengaged

    Digital Audio
    Sample Rates Up to 96 kHz (AD/DA Conversion)
     176.4 and 192 kHz (D/A Conversion)
    Bit Depth Up to 24-Bit (AD/DA Conversion)
    Latency 67 Samples at 44.1 kHz (Input to Output)
    67 Samples at 48 kHz (Input to Output)
    67 Samples at 88.2 kHz (Input to Output)
    67 Samples at 96 kHz (Input to Output)
    Sync Sources ADAT, AES/EBU, Internal, S/PDIF, Word Clock, MH Link via Ethernet
    Word Clock Input Termination 75 Ohms
    OS Compatibility macOS
    Windows 10

    MH Console Software for Early Access Models Supports macOS Only

    Required Hardware USB 2.0 Port
    Power Requirements AC/DC Power Adapter (Included)
    AC Input Power 90 to 240 VAC at 50/60 Hz
    AC/DC Power Adapter 24 VDC at 2 A, Center-Positive (Included)
    Power Consumption 12 W
    Anti-Theft Features None
    Rackmount Size 1 RU (With Included Hardware)
    Dimensions 13.5 x 8.27 x 1.73" / 34.3 x 21 x 4.4 cm
    Weight 4.0 lb / 1.8 kg (Without Accessories)

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