Metric Halo LIO-8/4p mkIV
Recording & Mixing Console / Interface
Audio Interface$2,895Manufacturer list price
Specifications
- Type
- Audio Interface
- Description
- Recording & Mixing Console / Interface
- Topology
- Custom hybrid DSP/FPGA processing engine (MH DSP Engine)
- Signal path
- Digital (recallable / digitally controlled)
- Channels
- 8
- Channel format
- 8x analog in / 8x analog out, 2x DI, stereo headphone out; 4 channels with ULN-R mic preamps standard
- Form factor
- 1U rackmount desktop unit (rack ears included)
- Rack units
- 1
- Connection
- USB-C, Ethernet/MHLink
- Sample rate (kHz)
- 44.1-192
- Bit depth
- 24-bit converters / 32-bit internal DSP
- DSP
- true
- Power (W)
- 20W nominal / 25W max (18W min)
- Phantom power
- 48V
Details
Controls: Digitally-controlled analog trim/gain knobs with dual vernier display, headphone level control, 15-segment precision front panel metering, meter-on-knob
I/O: 8x A/D analog in (trim control, 4ch with ULN-R mic preamps standard, P48 phantom, up to 90dB gain in 0.5dB steps), 8x D/A analog out (gain control), 2x Hi-Z guitar/bass DI in, stereo headphone out, 8ch AES in/out, SMPTE LTC I/O, MIDI I/O, MHLink (Gigabit Ethernet, up to 100m), USB-C (Class Audio 2, driverless, incl. Satellite Computer Port mode), MH EdgeBus expansion slot (AES/SPDIF/ADAT/MADI up to 256ch via EdgeCards)
Notable use: Tracking, mixing, mastering, live sound, remote mic pre, A/D/A, active analog split, digital snake, DSP processing, format conversion, headphone amp, DI, meter bridge, monitor control, cue playback, integrated Session recording DAW
Notes: FLAG device_class: '4p' variant of LIO-8 mkIV with 4 channels of ULN-R mic preamps included standard (vs 0 standard on plain LIO-8 mkIV) -- classified Audio Interface per guidance. Successor to 'LIO-8/4p 3d' (page cites same Gen4 vs Gen3 comparison as LIO-8 mkIV: 18 vs 116 sample converter RTL, ~40% lower power). price_usd = MH Direct store list price (item 000-50048, productid=10010), verified 2026-07. year_intro left blank, not stated on official page.