The MX 3250/4 is the core of the DXT 3000 Voice Alarm system, tailored for small and medium-sized installations that require EN 54-16 compliance. This unit delivers up to 250 W of total power through its efficient and reliable Class D+ amplifier and supports 4 independently managed zones. It includes a spare amplifier facility and features integrated emergency message playback via a monitored SD card. The onboard DSP ensures optimized sound performance, enhancing voice clarity and background music quality. With EN 54-4 certified power supply and the ability to house backup batteries internally, it offers a compact and complete solution. The system is expandable with microphone consoles like BM 3804, BM 3804FM, and ME 3801, and extension panels such as BE 3806 for live paging. It supports both wall and rack mounting options for versatile installation.
Features
250 W total power
4 zones controlled
DSP platform on-board
Certified EN 54-16 and EN 54-4
Emergency messages on monitored SD card
Spare power amplifier facility
Integrated audio source on front panel
Wall mount or rack mount installation
Specifications
| Number of zones managed | 4 |
| Built-in power amplifier | Yes |
| Spare amplifier switch | Yes |
| Max number of consoles | 4 |
| Console buses | 1 |
| Emergency audio channels | 1 |
| Max connectable units | 8 |
| Communication bus | Serial |
| Connection cables | J-Type fire-rated |
| Emergency messages | Yes (on SD card) |
| Amplifier class | D+ |
| Number of channels | 4 |
| Output power @ 100 V | 250 W RMS |
| A/B speaker line | Yes |
| Frequency response | 80 Hz ÷ 16 kHz |
| Signal/noise ratio | >98 dB |
| THD @ 1 kHz | <0.3 % |
| Total inputs | 3 (Balanced Mono) |
| Line inputs/connectors | 2 / Euroblock, JACK |
| VOX | Yes |
| Paging inputs/connectors | 1 / Euroblock |
| Paging command | Serial |
| Paging emergency | Yes |
| GPI (monitored/photo) | 6 / 6 / 6 |
| Signal outputs/connectors | 1 / JACK |
| Power outputs/connectors | 4 / Euroblock |
| GPO | 6 |
| DSP | Yes |
| Tone controls | Yes |
| High-pass filter | 20 Hz ÷ 500 Hz |
| Configuration | DIP switch, Front panel |
| Chime tone | Yes |
| Cooling | Convection |
| Protections | Short circuit, Thermal, DC, Fuses, VHF |
| USB/SD audio source | Yes / Yes |
| Operating voltage | 220-240/115 V~ 50/60Hz |
| Voltage selection | Internal |
| DC power/input | Yes / 24 V |
| Power consumption (max) | 400 W |
| IP protection grade | IP 30 |
| Safety agency | CE compliant |
| EN54-16 certified | Yes |
| EN54-4 certified | Yes |
| CPR number | 0068-CPR-007/2015 |
| Material | Metal |
| Color | White |
| Rack mounting | 19″, 12U |
| Height | 530 mm / 20.87 inches |
| Width | 430 mm / 16.93 inches |
| Depth | 190 mm / 7.48 inches |
| Weight | 15.96 kg / 35.19 lbs |
| Package height | 304 mm / 11.97 inches |
| Package width | 596 mm / 23.46 inches |
| Package depth | 504 mm / 19.84 inches |
| Package weight | 15.96 kg / 35.19 lbs |
















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