Description
The Adastra RM360D is a 5-channel mixer-amplifier built for commercial sound installations. It powers 100V line speakers or standard low-impedance speakers down to a 4 Ohm load, so it suits shops, cafes, offices and similar spaces where you need reliable background music and announcements. The unit fits a 2U 19" rack and comes with rack ears supplied. Outputs are on screw terminals, arranged as four switchable zones plus one always-on output for priority alert speakers.
Input options cover most sources you are likely to connect. There is an XLR input with switchable +20V phantom power, two mic/line jacks and two RCA line inputs, along with an RCA line output. The built-in media player handles a DAB+/FM radio tuner (aerial/antenna required), front-mounted USB and SD ports, and a Bluetooth 5.0 receiver with a unique serial ID. Controls on the front cover mic 1, mic/line 2 and 3, line 4 and 5, plus bass, treble and master volume. Bass gives ±10dB at 100Hz and treble ±10dB at 10kHz.
A switchable VOX voiceover feature automatically lowers the background music when a signal is detected on mic input 1, which is handy for spoken announcements. Rear panel 24V emergency mute contacts cut all inputs except mic 1 when triggered, useful for tying into an alarm or paging system. Power runs from 230Vac mains or a 24Vdc backup supply via screw terminals. Total harmonic distortion stays below 1.0%, and rear switches let you set phantom power, VOX and mic/line mode for inputs 2 and 3.
Specification
| Weight |
9.14KG |
| Dimensions |
433mm x 410mm x 88mm |
| Fuse |
T5A |
| Output power : rms |
360W |
| Power supply |
170-264Vac, 50Hz (IEC) |
| DC power |
24Vdc (screw terminals) |
| Inputs |
Mic XLR, 2 x mic/line jack, 2 x RCA line |
| Input sensitivity : mic 1 (balanced) |
-53dBV |
| Input impedance : mic 1 |
5k Ohm |
| Input sensitivity : line (unbalanced) |
-15dBV (-18.5dBV line 5) |
| Input impedance : inputs 2-5 |
1k Ohm |
| Line output |
RCA |
| Speaker outputs |
4 switched + 1 non-switched 100V / 4-16 Ohm / COM |
| Bluetooth version |
5.0 |
| Controls |
Mic1, mic/line2+3, line4+5, bass, treble, master volume |
| Equaliser : bass |
100Hz ±10dB |
| Equaliser : treble |
10kHz ±10dB |
| Rear panel switches |
Phantom, Vox, Mic/Line (2 + 3) |
| Phantom power |
+20V (mic 1 XLR, switchable) |
| Audio source |
DAB+/FM tuner, USB/SD player, Bluetooth receiver |
| Emergency control |
24V contacts - mute all except Mic.1 when triggered |
| THD |
<1.0% |
Downloads
Product Manual
Frequently Asked
Can it drive both 100V line and low-impedance speakers?
Yes. It outputs to 100V line speakers or standard speakers down to a 4 Ohm load, so you can choose the setup that fits your install.
How many speaker zones does it have?
There are four switchable 100V zones plus one non-switched, always-on output for priority alert speakers.
What audio sources are built in?
A DAB+/FM tuner, a USB/SD media player and a Bluetooth 5.0 receiver, all handled by the integrated media player.
Does it support emergency muting?
Yes. Rear panel 24V contacts mute all inputs except mic 1 when triggered, which lets you connect it to an alarm or paging system.
Can it run on backup power?
It runs from 230Vac mains or a 24Vdc supply via screw terminals, so you can add battery backup for continued operation.
What is the VOX voiceover feature?
When a signal is detected on mic input 1, VOX automatically lowers the background music so announcements come through clearly.