Description The MXR 4500/2 is the master unit of the DXT 4000 Voice Alarm system, engineered for rack-mount installations in small to medium-sized environments requiring EN 54-16 certification. This robust unit delivers 500 W total output power through a Class D amplifier and supports up to 2 controlled zones. It includes a monitored SD card for emergency message playback, spare amplifier switching, and an integrated DSP for superior audio clarity and equalization. The built-in IE 3008 board allows for master-slave configuration, connecting up to 8 units. With EN 54-4 certified internal power supply and 48 V DC backup, this unit ensures high reliability. It can be paired with BM 3804, BM 3804FM, and ME 3801 consoles, as well as BE 3806 button extensions, to enable live announcements and emergency paging. Designed for 19″ rack mounting in a 4U space, the MXR 4500/2 is compact, durable, and ideal for critical communication applications. Features 500 W total powerUp to 2 zones controlledOn-board DSP platformCertified EN 54-16 and EN 54-4Emergency messages on monitored SD cardSpare power amplifier facilityIntegrated audio source on front panelRack mount installation (4U)Up to 8 units connectable in master-slave configuration Specifications Number of zones managed2Built-in power amplifierYesSpare amplifier switchYesMax number of consoles4Console buses1Emergency audio channels1Max connectable units8Communication busSerialConnection cablesJ-Type fire-ratedEmergency messagesYes (on SD card)Amplifier classD Number of channels2Output power @ 100 V500 W RMSA/B speaker lineYesFrequency response80 Hz ÷ 16 kHzSignal/noise ratio>98 dBTHD @ 1 kHz<0.3 %Total inputs3 (Balanced Mono)Line inputs/connectors2 / Euroblock, JACKVOXYesPaging inputs/connectors1 / EuroblockPaging commandSerialPaging emergencyYesGPI (monitored/photo)6 / 6 / 6Signal outputs/connectors1 / JACKPower outputs/connectors2 / EuroblockGPO6DSPYesTone controlsYesHigh-pass filter20 Hz ÷ 500 HzConfigurationDIP switch, Front panelChime toneYesCoolingConvectionProtectionsShort circuit, Thermal, DC, Fuses, VHFUSB/SD audio sourceYes / YesOperating voltage220-240/115 V~ 50/60HzVoltage selectionInternalDC power/inputYes / 48 VPower consumption (max)700 WIP protection grade—Safety agencyCE compliantEN54-16 certifiedYesEN54-4 certifiedYesCPR number0068-CPR-230/2025MaterialMetalColorBlack – RAL 9005Rack mounting19″, 4UHeight178 mm / 7.01 inchesWidth482 mm / 18.98 inchesDepth426 mm / 16.77 inchesWeight11.3 kg / 24.91 lbsPackage height262 mm / 10.31 inchesPackage width523 mm / 20.59 inchesPackage depth523 mm / 20.59 inchesPackage weight15.1 kg / 33.29 lbs
