Metric Halo ULN-8 mkIV — a complete tracking and mixing system with eight ULN-R preamps, hybrid DSP/FPGA processing, and a monitor controller supporting up to 7.1.4 Dolby Atmos in one rack space.
This is the flagship unit in the mkIV lineup — shipping with a full set of eight mic channels out of the box, so it needs no further expansion to work as a standalone tracking station. A/D-D/A conversion up to 192 kHz, a 128-channel by 64-bus mixer, and driverless USB-C connectivity add up to a complete signal chain from microphone to DAW in a single device.
Eight Ready-to-Use Mic Channels, No Compromises
Sessions with a full drum kit, a string section, or a live band tracking together need simultaneous access to multiple clean mic paths without mixing gear from different manufacturers. The ULN-8 mkIV supplies 8 ULN-R preamps out of the box, each with up to 90 dB of gain in 0.5 dB steps and independently switchable +48V phantom power. Latency reduced to 18 samples and relay-muted outputs on power-up and power-down eliminate the click transients that force careful power sequencing on other rack systems.A Large-Format Mixing Console in 1U
Big mixing sessions usually require a separate monitor desk, several output cards, and outboard insert processing. The ULN-8 mkIV folds all of that into one unit — a 128-channel mixer with 64 busses matches large-console capability, and a built-in monitor controller with up to 7.1.4 Dolby Atmos support and analog gain control lets an engineer run an immersive session without extra hardware. Character Component Modeling on every input channel colors the preamp path from a clean wire-with-gain sound to tube-style character, without reaching for outboard coloring.KEY FEATURES
- 8 ULN-R preamps built in from the factory
- 8 line inputs and 8 line outputs on DB-25
- 128-channel mixer with 64 busses
- Monitor controller up to 7.1.4 Dolby Atmos with relay hard mute
- Latency reduced to 18 samples
- Character Component Modeling on every input channel
- Support for Mackie, EuCon, iPad, and tablet control surfaces
TECHNICAL SPECIFICATIONS
- Model number: 000-50046
- Mic channels: 8, built in
- Line I/O: 8 x 8 on DB-25
- Preamp gain range: up to 90 dB, 0.5 dB steps
- Frequency response: 2.9 Hz - 64.7 kHz, ±1 dB @ 192 kHz
- Resolution: 44.1-192 kHz
- Computer connection: USB-C, driverless class compliance
- Processing: hybrid DSP/FPGA engine, 100+ zero-latency plug-ins
