Adastra UA30 5-Channel 30W 100V Mixer Amplifier

The Adastra UA30 (953.183UK) is a compact yet powerful 30W, 5-channel mixer amplifier designed in a space-saving half-width 1U housing. Engineered as a versatile audio solution, it is perfectly suited for small to medium public address installations such as retail spaces, offices, schools, and places of worship. Its robust construction and comprehensive connectivity make it a reliable core component for any background music or voice reinforcement system.

Featuring flexible input options, the UA30 provides three switchable microphone/line inputs, a dedicated RCA line input, and a convenient 3.5mm auxiliary input. Each channel is governed by individual front-panel volume controls, with a master output level control for overall system volume management. This allows for seamless mixing of multiple audio sources, from microphones to media players.

The amplifier delivers a mono output that can be connected to either a 100V line system or a standard 8-ohm speaker load via a removable screw terminal connector on the rear panel. This dual-output capability offers significant installation flexibility. The unit is supplied with versatile rack-mounting hardware, enabling it to be mounted in a standard 19-inch rack, configured as a single wall-mounted unit, or installed discreetly under a worktop.

Key professional features include 24V fire alarm mute contacts for integration with emergency systems and +20V phantom power on channel one for compatible microphones. With a Class D amplifier design coupled with a transformer output, the UA30 ensures efficient, clean power delivery and reliable performance.