Description
The Adastra UX120 is a compact 100V mixer-amplifier with a built-in media player, giving you a single unit that handles both source and amplification for public address work. Music playback comes from the internal player, with selectable sources including USB MP3, a DAB+ or FM radio tuner, Bluetooth 5.0, or a front-mounted 3.5mm Aux input. There is also an Aux line input with its own volume control on the front panel, so you can balance background music against announcements.
A combination jack/XLR microphone input includes switchable phantom power and an optional Vox priority function, which ducks the music when someone speaks into the mic. The amplifier produces a 120W output to either 100V line or low impedance speaker loads down to 2 ohms, switchable via a DIP switch and connected on screw terminals. Level is set with a Master volume control, and tone is handled by mini Bass and Treble rotary controls. The rear panel carries connections for a DAB+ or FM antenna (aerial in the UK) and 24V mute contacts for triggering from a fire panel or emergency evacuation system.
Each amplifier comes with brackets that let you mount two units side by side in a 1U 19" rack, or flat-mount a single unit against a wall or under a counter. The Class D design with transformer output keeps the control footprint small while still delivering the power needed for medium-sized areas. It works well on its own or paired with further amplifiers as part of a wider sound system, making it a practical starting point for a straightforward PA installation.
Specification
| Power supply |
170-264Vac, 50Hz (IEC) |
| Amplifier : construction |
Class D + transformer output |
| Audio source |
Internal USB/DAB+/FM/BT player |
| Inputs |
1 x Mic (jack/XLR), 1 x Line (2 x RCA), 1 x Aux (3.5mm) |
| Line output |
2 x RCA (mono) |
| Speaker outputs |
Screw terminals - 100V / 2 Ohms / Com |
| Mute |
24V relay contacts |
| Input impedance |
1k Ohms (mic/line) |
| Input sensitivity |
-10dB (line), -45dB (mic) |
| Bluetooth version |
5.0 |
Downloads
Product Manual
Frequently Asked
Can the UX120 drive both 100V line and low impedance speakers?
Yes. A DIP switch selects between 100V line operation and low impedance loads down to 2 ohms, with speakers connected on screw terminals.
What music sources are built in?
The internal media player offers USB MP3 playback, a DAB+ or FM radio tuner, Bluetooth 5.0, and a front-mounted 3.5mm Aux input, plus a separate Aux line input on RCA.
Does it support microphone announcements over music?
Yes. The combination jack/XLR mic input has switchable phantom power and an optional Vox priority function that lowers the music when the mic is used.
How is it mounted?
It is half-width 1U. Supplied brackets let you fit two units side by side in a 19" rack, or flat-mount a single unit on a wall or under a counter.
Can it connect to a fire alarm system?
Yes. The rear panel has 24V mute relay contacts for triggering from a fire panel or emergency evacuation system.