The 120W 100V Line Slave Amplifier is a high-power Class-D unit designed to extend or reinforce medium-to-large 100V line audio installations. Housed in a rack-mountable 1U chassis, it accepts standard line-level audio from a mixer or RM series mixer amplifier and can be cascaded with additional RS slave amplifiers to build larger distributed audio systems. With flexible RCA and Euroblock-style screw terminal connectivity, plus dedicated 100V signal input and 24V alarm mute contacts, this amplifier is purpose-built for professional installations requiring scalable power, reliable operation, and efficient performance.
Built for professional rack integration, the amplifier features a 19-inch rack-mountable 1U enclosure ideal for equipment racks and AV cabinets where space efficiency is essential. Its Class-D design reduces heat generation while maintaining a lightweight and power-efficient profile for long-term installed operation. Connections are optimised for installer convenience, with both RCA sockets and removable screw terminals available for line-level input and output wiring, as well as a dedicated removable screw terminal for 100V input. A master volume control provides simple level adjustment, while the rear terminal layout supports clean, structured cabling for permanent systems.
| Specification | Details |
|---|---|
| Product Type | 100V Line Slave Amplifier (Class-D) |
| Rack Mount | 19″ rack-mountable (1U) |
| Output Power (RMS) | 120W |
| Power Supply | 175–264Vac 50Hz (IEC) |
| Fuse Rating | T1A |
| Input Signal | Slave line in (RCA / screw terminal), 100V in (screw terminal) |
| Output Signal | Slave line out (RCA / screw terminal) |
| Speaker Outputs | 100V or 2 Ohms min. (screw terminals) |
| Controls | Master volume |
| Mute | 24V alarm contacts (screw terminal) |
| THD | < 1.0% |
| Frequency Response | 90Hz–20kHz (100V), 17Hz–90kHz (2Ω) |
| Dimensions (W × D × H) | 433 × 267 × 44 mm |
| Weight | 4.8 kg |
Designed for scalable installed sound, the 120W 100V Line Slave Amplifier offers a practical means of increasing amplification in distributed speaker systems without redesigning the entire setup. It can be fed directly from a mixer line output, an RM series mixer amplifier, or even from an existing 100V speaker feed, making it ideal for extending long speaker runs or expanding coverage to new zones. The ability to cascade additional slave amplifiers supports larger multi-amp deployments, while the 24V alarm mute integration ensures the system complies with safety and evacuation requirements where audio must be muted during alerts. With Class-D efficiency and flexible connection options, it offers dependable performance for commercial environments such as retail, hospitality, education, warehouses, and multi-room facilities.
Q: What is a 100V line slave amplifier used for?
A: It is used to add extra amplification power to an existing 100V distributed speaker system or to expand a system into additional zones.
Q: Can this amplifier be connected to a standard mixer?
A: Yes, it accepts standard line-level input via RCA sockets or screw terminals from a mixer or compatible mixer amplifier.
Q: Can multiple slave amplifiers be linked together?
A: Yes, the slave line output can be cascaded to additional slave amplifiers to build larger multi-amplifier systems.
Q: Does it support emergency mute integration?
A: Yes, it includes 24V mute contacts to allow a security or alarm panel to mute audio output during alarm triggering.
Q: What speaker outputs does this amplifier provide?
A: It supports 100V speaker output and also supports low impedance speaker connections down to 2 ohms minimum via screw terminals.
