Products Hardware HW Comparison
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Which interface is right for me?

While all Metric Halo interfaces are multi-purpose, each has characteristics that make it shine in one use or another:

  • ULN-8 3d: Our top of the line, archival quality unit. The ULN-8 has the quality and features to handle the most demanding jobs. Perfect for everything from classical recording to the mastering suite, or any user that needs ultimate power and flexibility.
  • LIO-8 3d: All the audio quality of the ULN-8, minus the mic pres. Perfect for the editing suite, recording with your own pres or interfacing your analog console. In true MH style, the mics pres can be added in 4 channel groups if your needs change.
  • ULN-2 3d: Two channels of boutique quality mic pres in a small package. The ULN-2 is at home in the mastering studio as well as your home studio. Perfect for the discerning recordist who doesn’t require high channels counts but demands high quality and appreciates portability.
  • 2882 3d: Eight channels of analog I/O that fits in your backpack. The 2882 is clean without being pristine and packs a lot of power.

Use the following table to see the notable differences between the interfaces.

Feature ULN-8 3d LIO-8 3d ULN-2 3d 2882 3d
Converter Technology 2nd Generation 2nd Generation 1st Generation 1st Generation
Preamp Technology 3rd Generation Optional (1) 2nd Generation 1st Generation
Analog Technology 3rd Generation 3rd Generation 2nd Generation 1st Generation
DSP Technology 3rd Generation 3rd Generation 3rd Generation 3rd Generation
Box-to-Box MHLink MHLink MHLink MHLink
Computer Interface Ethernet/USB Ethernet/USB Ethernet/USB Ethernet/USB
44.1k - 48k √ √ √ √
88.2k - 96k √ √ √ √
176.4k - 192k √ √ D/A & Digital D/A & Digital
Channels of A/D 8 8 2 8
Mic pres 8 0, 4, 8 (1) 2 8
Gain 91.5 dB 91.5 dB (1) 72 dB 42 dB
Jensen Option n/a n/a √ n/a
Noise floor 117.9 dB 117.9 dB 110 dB 110 dB
Insert points 8 0 (8 sends) 2 n/a
Dedicated DIs 2 2 n/a n/a
Metering 15 Segment Multicolor 15 Segment Multicolor 10 Segment
Fixed Color		 10 Segment
Fixed Color
Channels of D/A 8
(+headphones)		 8
(+headphones)		 4 8
(+headphones)
Output Control Digitally Controlled Analog Digitally Controlled Analog Analog (Monitor Outs), Digital (Analog Outs) Digital/Analog hybrid
Output Control UI FP + Computer FP + Computer FP Only (Analog)
Computer Only (Digital)		 Computer Only
Monitor Controller Analog Domain Analog Domain Digital Domain Digital Domain
AES Digital I/O 8 channels
(single wire)		 8 channels
(single wire)		 2 channels (2)
via EdgeCard		 2 channels (2)
via EdgeCard
Optical Digital I/O via EdgeCard via EdgeCard 8 channels ADAT(3)
or 2 Channels TOSLINK		 8 channels ADAT(3)
or 2 Channels TOSLINK
Wordclock I/O √ √ √ √
Multipurpose encoders 9 9 n/a n/a
Tact Switches 7 7 2 (snapshot selection) 2 (Mute & Dim)
Gain Control UI FP + Computer FP + Computer FP Only Computer Only
Gain Control Encoder Encoder Switch/Pot Computer
Gain Style Digitally Controlled Analog Digitally Controlled Analog Analog Digitally Controlled Analog
3d Card √ √ √ √
Ultra-low Latency Mixer √ √ √ √
Basic DSP Plugin Bundle √ √ √ √
+DSP license √ √ √ √
Number of channels to/from Computer over USB 12 12 12 12
Number of channels to/from Computer over Ethernet

up to 128

up to 128

up to 128

up to 128
Bus powerable? No No No No
DC powerable? √ √ √ √
Power Switch √ √ No No
Audio I/O connectors DB-25 DB-25 XLR and TRS XLR and TRS
SMPTE I/O √ √ n/a n/a
MIDI I/O √ √ via EdgeCard via EdgeCard
Dimensions 17" x 13" x 1.72"
432 x 330 x 44 mm		 17" x 13" x 1.72"
432 x 330 x 44 mm		 13.5” x 8.25” x 1.73”
343 x 210 x 44 mm		 13.5" × 11" × 1.73"
343 x 279 x 44 mm
Weight 6 lbs
2.7 kg		 6 lbs
2.7 kg		 4 lbs
1.8 kg		 4.5 lbs
2 kg
Suggested retail price $4495 $2995 $1595 $1795
Early Access price $3195 $2495 $1395 $1595

 

1: 4 or 8 channels of 3rd Generation ULN-R mic pres may be installed as a factory option or at a later time.
2: AES and SPDIF active simultaneously and independently
3: ADAT supports SMUX; operation supports up to 192 kHz with a corresponding reduction in channel count