The Adastra RS121 is a 120W Class-D slave amplifier designed for expanding 100V line or low-impedance audio systems. With versatile input options, including RCA and screw terminals, and a 1U rack-mountable design, it's ideal for commercial installations requiring reliable and scalable audio amplification.
The Adastra RS121 is engineered for commercial environments requiring reliable and scalable audio amplification. Its 120W output power and compatibility with both 100V line and low-impedance speaker systems make it suitable for venues such as retail stores, educational institutions, conference centers, and public address systems. The amplifier's 1U rack-mountable design allows for seamless integration into standard equipment racks, and its versatile input options—including RCA and screw terminals—enable it to be easily connected to existing mixer amplifiers or extended speaker lines. Additionally, the RS121 features a 24V mute contact for integration with emergency systems, ensuring compliance with safety protocols in public address applications.