The Adastra RM240D is a high-performance 240W 100V line mixer amplifier, engineered for commercial audio installations such as retail spaces, hospitality venues, educational institutions, and public buildings. It supports DAB+/FM radio, Bluetooth 5.0 streaming, USB/SD media playback, and multiple microphone and line inputs, ensuring flexible audio source integration.
Housed in a durable 2U 19-inch rack-mountable chassis, the RM240D ensures both robust build quality and ease of integration. The front panel offers intuitive input level controls, tone adjustments, and zone selection dials, making operation straightforward. Rear panel connections are clearly labelled to facilitate efficient installation and maintenance workflows.
| Specification | Details |
|---|---|
| Power Source | Mains 230V AC or 24V DC |
| Output Power (RMS) | 240W |
| Speaker Outputs | 4 switchable 100V zones, 1 unswitched output, optional 4–16Ω output |
| Inputs | 1 x XLR mic (phantom power), 2 x mic/line jack, 2 x RCA line |
| Media Playback | DAB+/FM tuner, Bluetooth 5.0, USB/SD player |
| Tone Control | Bass: 100Hz ±10dB, Treble: 10kHz ±10dB |
| Emergency Control | 24V contacts silence all except mic 1 |
| Dimensions (W x D x H) | 433 x 320 x 88 mm |
| Weight | 7.37 kg |
The RM240D delivers clear, distortion-free audio with total harmonic distortion maintained below 1.0%. With multiple input sources and flexible 4-zone output control, the amplifier easily adapts to various commercial environments. The integrated emergency mute functionality prioritises critical announcements, ensuring safety and clear communication. Straightforward controls and labelling enhance the user experience, supporting efficient setup and daily operation.
Q: Can the RM240D operate both 100V line and low-impedance speakers simultaneously?
A: No, it can operate either a 100V line or a low-impedance (4–16Ω) system, but not both at the same time.
Q: Is the Bluetooth connection secure and identifiable?
A: Yes, the integrated Bluetooth receiver features a unique serial ID, ensuring a secure and easily identifiable connection during pairing.
Q: How does the emergency mute function work?
A: When triggered by a 24V signal, the emergency mute silences all outputs except microphone input 1, allowing emergency messages to be clearly heard.
Q: Can bass and treble be adjusted to suit different environments?
A: Yes, the RM240D includes tone controls with ±10dB adjustment at 100Hz for bass and 10kHz for treble, allowing for tailored sound output.
Q: Is the amplifier suitable for rack mounting?
A: Absolutely, the RM240D is designed for 2U 19-inch rack mounting and includes rack ears for convenient installation.
