The Adastra RS121 PA power amplifier powers 100 V sound systems and can extend existing 100 V speaker installations by connecting directly to their supply. The slave input accepts a line-level signal from a mixer or mixer amplifier, while the slave output allows additional RS power amplifiers to be connected. The speaker output can be set to either 100 V or low impedance, with a minimum impedance of 2 Ω.
The enclosure is suitable for installation in a 19-inch rack and occupies 1U. The 24 V alarm contacts can be connected to a security or alarm panel to mute the output when the alarm is activated. The signal input and output connect via RCA or removable screw terminals.
- Type: PA power amplifier
- Output power at 100 V: 120 W RMS
- Class technology: D
- Signal inputs: Slave line via RCA or screw terminal; 100 V via screw terminal
- Signal output: Slave line via RCA or screw terminal
- Speaker outputs: 100 V or minimum impedance of 2 Ω, via screw terminals
- Control: Master volume
- Alarm mute: 24 V contacts via screw terminal
- THD distortion: < 1.0%
- Fuse: T1A
- Power supply: 175–264 V AC, 50 Hz (IEC)
- Dimensions: 433 × 267 × 44 mm
- Weight: 4.8 kg
Technical Specifications
- Amplifier Type
- PA Amplifier
- Type
- Power Amplifier
- Zones
- -
- Power (8Ω)
- -
- Power (100V)
- 120 W
- Class
- D
Additional Specifications
- Radio
- No
- Cooling system
- No
Connectivity
- RCA
- No
- XLR
- No
- Mini Jack (3.5mm)
- No
- Jack (6.3mm)
- No
- USB
- No
- Ethernet
- No
- Bluetooth
- No
- Mic In
- No
Dimensions
- Width
- -
- Height
- -
- Length
- -
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.