Adastra US Series 100V Slave Amplifiers

The US Series includes 24V alarm contacts for integration with fire or control panels, delivers a frequency response of 100 Hz–18 kHz with a signal-to-noise ratio of 80 dB, and is supplied with flexible rack-mount hardware that enables wall or under-worktop installation. Power is supplied via IEC lead (170–264 V AC, 50/60 Hz), making it easy to deploy in commercial and small-venue environments.

100V slave amplifiers built into a half width 1U housing. In addition to RCA line input and output, the US amplifiers have a 100V input on removable screw terminals, which enables the amplifier to be connected in parallel with existing 100V speakers to extend the system. Mono output to either 100V line or an 8 ohm speaker load is connected via a separate removable screw terminal connector on the rear panel. Supplied with rack-mounting hardware which can be configured to mount a single unit against a wall or under a worktop. Designed as a versatile solution for small to medium PA installations

The Adastra 60W Compact 100V Slave Amplifier is a high-quality and versatile audio solution designed to expand your existing PA system with ease. This compact, rack-mountable amplifier delivers 60 watts of RMS power, ideal for powering additional speaker zones in commercial, retail, and educational environments.

Featuring 100V line operation, it ensures efficient long-distance audio transmission without significant signal loss, making it perfect for large venues or distributed sound systems. The amplifier includes a line input and output, allowing for seamless daisy-chaining with other amplifiers or audio sources.

Its compact size and robust metal chassis provide easy installation into AV racks or discreet mounting in small spaces, while offering durability for professional applications. Additionally, the unit has thermal protection and short circuit safety features, ensuring reliable and safe operation over time.

Whether expanding your PA system for announcements, background music, or multi-room audio, the Adastra 60W Compact 100V Slave Amplifier provides a dependable and powerful solution for your audio needs.