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1. ULN-8 Quick Start Guide
Figure 1.1: ULN-8
Prepare the unit for use
Unpack the ULN-8 and make sure all the parts are there:
• One Mobile I/O ULN-8 unit
• One IEC Power Cord appropriate for your area
• One 18-volt 60-watt world-ready external power supply
• One 12” CAT5e Ethernet Cable
• One 14' CAT5e Ethernet Cable
• One USB-A to USB-C Cable
• Two Rack Ears w/ fasteners
• Rubber feet
• Warranty/Registration Card
Welcome to your new Metric Halo ULN-8 3d! Once you’re finished checking the box physically and in-
stalling the rack ears (or rubber feet), connect the power supply. Now connect your input and output cables
along with your monitors and signal sources. Your monitors should be connected to Analog Out 1/2, either
via a DB25 cable or the 1/4" TRS jacks. Turn the unit on using the front panel switch.
Super QuickStart!
Plug your computer into the USB-C port on the back of the ULN-8.
Select “ULN-8” as your computers‘ audio device.
Done.
The ULN-8 will receive and send audio from/to channels 1 through 12 of your USB host device
at all resolutions up to 192kHz/24 bit. Audio channels 1 and 2 of your host device will play
audio out both the headphone jack and the analog channels 1 and 2 jacks and DB25 analog
out on the rear panel.
Note:
While this is indeed the fastest way to get audio going, it is also the most boring. Con-
necting your Host computer through MHLink is by far the more powerful and expansive inter-
face (and certainly the preferred method), but rest assured the USB connection will take on a
much more interesting role later in the Advanced section. Please, do read on.
