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

BH #MEULN23D • MFR #000-50021
Metric Halo ULN-2 3d USB Type-C Audio Interface with 2 Preamps & DSP
Key Features
  • 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
Show More
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.
Discontinued
Anthony P., B&H Expert

True Know-How

Ask Our Experts

866.264.7509

Metric Halo ULN-2 3D Overview

  • 1Description
  • 23d Card Features
  • 3Analog I/O
  • 4Digital I/O
  • 5Informative Front Panel
  • 6Flexible Operation
  • 7Included Accessories

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

Metric Halo ULN-2 3D Specs

Form FactorTabletop (Rack-Mountable with Included Hardware)
Display4 x Multi-Segment LED Meter
Channels of I/OAnalog:
2 Input / 2 Output at 96 kHz
0 Input / 2 Output at 192 kHz
Digital:
8 Input / 8 Output at 48 kHz
2 Input / 2 Output at 192 kHz
Max Sample Rate/Resolution192 kHz / 24-Bit
Number of Mic Preamps2
Connectivity
Analog Audio I/O2 x Combo XLR-1/4" TRS Balanced Mic/Line/Hi-Z Input
2 x 1/4" TRS Balanced Insert Output
2 x 1/4" TRS Balanced Insert Input
2 x 1/4" TRS Balanced Line Output
2 x 1/4" TRS Balanced Monitor Output
1 x 1/4" TRS Unbalanced Headphone Output
Phantom Power+48 V (Selectable on Individual Inputs)
Digital Audio I/O1 x TOSLINK Optical ADAT Input
1 x TOSLINK Optical ADAT Output
1 x RCA Coaxial S/PDIF Input
1 x RCA Coaxial S/PDIF Output
1 x XLR 3-Pin AES3 Input
1 x XLR 3-Pin AES3 Output
Host Connection / USB1 x USB Type-C
Sync I/O1 x BNC Word Clock Input
1 x BNC Word Clock Output
Network I/O2 x RJ45 MH Link
MIDI I/ONone
Memory Card SlotNone
Performance
Frequency Response18 Hz to 20 kHz ±0.1 dB
8 Hz to 50 kHz ±1 dB
3 Hz to 100 kHz ±3 dB
Gain/Trim RangeMic Inputs:
+6 dB to +72 dB
Hi-Z Inputs:
-3 dB to +63 dB
ImpedanceHi-Z Inputs:
200 Kilohms (Balanced)
Mic Inputs:
3.3 Kilohms (Balanced)
Dynamic RangeA/D Converters:
110 dB
D/A Converters:
120 dB
SNRInputs:
110 dB
Line Outputs:
120 dB
THDMic Inputs:
0.0005%
Crosstalk-132 dB
EIN-130.5 dBu
Digital Audio
Sample RatesUp to 96 kHz (AD/DA Conversion)
176.4 / 192 kHz (D/A Conversion)
Bit DepthsUp to 24-Bit (AD/DA Conversion)
Latency67 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 SourcesADAT, AES3, Internal, MH Link via Ethernet, S/PDIF, Word Clock
ClockingWord Clock:
Input Termination: 75 Ohms
Compatibility
OS CompatibilitymacOS
Windows 10
Linux
iOS
Required HardwareUSB 2.0 Port
Power
Power RequirementsAC/DC Power Adapter (Included)
AC Input Power90 to 240 VAC, 50 / 60 Hz
AC/DC Power Adapter24 VDC at 2 A, Center-Positive (Included)
Power Consumption12 W
Physical
Rackmount Size1 RU (with Included Hardware)
Anti-Theft FeaturesNone
Dimensions13.5 x 8.27 x 1.73" / 34.3 x 21.01 x 4.39 cm
Weight4.0 lb / 1.8 kg (Without Accessories)
Packaging Info
Package Weight4.5 lb
Box Dimensions (LxWxH)19.5 x 14.5 x 5"
See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

Close

Close

Close