Adastra UX240 Compact 100V Mixer Amplifier 240W

The Adastra UX240 is a compact and powerful 100V line mixer-amplifier designed for commercial audio installations. Delivering 240 watts RMS of output power, it supports both 100V line systems and low impedance speaker loads down to 2 Ohms, selectable via DIP switches. Internally, it uses a Class D amplifier topology with a transformer output for efficient and reliable performance.

Featuring a built-in media player, the UX240 offers flexible audio source options including Bluetooth 5.0, USB MP3 playback, DAB+, and FM radio. The front panel provides independent volume controls for the auxiliary input, master volume, and Bass/Treble EQ adjustments for precise sound shaping.

Connectivity is highly versatile with a mic input (jack/XLR combo) featuring switchable phantom power and optional Vox priority, a line input via RCA connectors, and a 3.5mm auxiliary input. For output, the unit includes screw terminal speaker connections for 100V, 2 Ohms, and common ground, alongside RCA line outputs for mono signal distribution. A 24V relay mute contact is also provided for seamless integration with fire alarm systems or emergency override functions.

Housed in a half-width 1U chassis, the amplifier can be rack-mounted or surface-mounted using the included brackets. It measures 350 x 210 x 54mm and is powered via a 170–264V AC, 50Hz IEC input with a UK Type G mains plug.