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CMX PA-2120MX 2-Zone Matrix Mixer Amplifier (2×120W)
► 2×120W Dual-Zone Power: Delivers 240W total RMS output across two independent audio zones.
► Dual Output Flexibility: Drives 100V distributed lines and 8-16Ω low-impedance speakers simultaneously.
► Built-In Media Player: Plays USB, SD, FM radio, and wireless Bluetooth across zones.
► 3 Phantom Mic Inputs: Balanced XLR/6.35mm inputs with +48V phantom power and VOX priority.
► Remote Mic Expansion: Supports up to 8 remote paging microphones via standard CAT6 cables.
► Remote Wall Controllers: Connects up to 2 local room control panels for localized selection.
► Emergency Fire Mute: Dedicated EMC input and contact closure for instant fire alarm override.
► Industrial Protection: Comprehensive short-circuit, overload, clip, and thermal protection for 24/7 reliability.
CMX Audio Solutions
CMX PA-2120MX 2-Zone Matrix Mixer Amplifier (2×120W)
2×120W Commercial Matrix Mixer Amplifier with USB/SD/FM/Bluetooth, Dual 100V & 8-16Ω Speaker Outputs, CAT6 Remote Mic Expansion, and EMC Fire Mute Override
The CMX PA-2120MX is an enterprise-grade 2-zone commercial matrix mixer amplifier delivering 2×120W RMS (240W total) across dual independent zones. Engineered for 19-inch 2U rack mounting or tabletop deployment, it features simultaneous 100V constant-voltage and 8-16Ω low-impedance speaker outputs, an integrated USB/SD/FM/Bluetooth media player, 3 combo XLR inputs with +48V phantom power, support for up to 8 remote paging mics (PA-2500RM) and 2 wall controllers (PA-2500SV) via CAT6, and priority EMC fire alarm integration.
Ideal For
Core Engineering Features
Dual-Zone 2×120W Matrix Amplification
Delivers 120W RMS continuous clean power per channel (240W total) with flexible matrix routing, enabling independent audio content and volume control across two distinct commercial zones.
Simultaneous 100V & 8-16Ω Output Topology
Features isolated output transformers allowing simultaneous connection of distributed 100V constant-voltage speaker lines and low-impedance 8-16Ω high-fidelity loudspeakers without cross-interference.
Multi-Source Digital Media Engine
Built-in front-panel media engine integrates MP3 USB flash drive playback, SD card reader, digital FM tuner, and wireless Bluetooth audio streaming, freely routable to Zone 1, Zone 2, or both.
3 Balanced Inputs with +48V Phantom Power
Equipped with 3 switchable Mic/Line combo XLR/6.35mm inputs with +48V phantom power for condenser microphones, individual bass/treble tone controls, and VOX highest priority override on Mic 1.
CAT6 Remote Paging & Wall Panel Bus
Dual RJ45 ports accommodate up to 8 cascaded PA-2500RM 2-zone remote paging microphones and up to 2 PA-2500SV local wall control panels over standard CAT6 cables up to 300 meters away.
EMC Priority & Enterprise Safety Protection
Dedicated 250mV EMC emergency broadcast input and contact closure mute port seamlessly interface with building fire alarm systems, backed by short-circuit, clip, overload, and thermal safeguards.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | CMX PA-2120MX |
| Description | 2-Zone Commercial Matrix Mixer Amplifier with USB/SD/FM/Bluetooth |
| Rated Power Output | 2 × 120W RMS (240W Total RMS) |
| Speaker Outputs | 2 Zone separated speaker outputs: 100V & 8–16Ω (simultaneous support) |
| Audio Inputs | MIC/LINE 1–3: 2.5mV Combo XLR balanced with +48V Phantom; Line: 150–470mV, 10kΩ RCA; EMC: 250mV RCA |
| Audio Outputs | Line Out: 0.775V (0dBV) RCA; Monitor Out: RCA |
| Frequency Response | 60Hz – 15kHz (±3dB) |
| Signal-to-Noise Ratio (S/N) | Line ≥ 85dB; Mic ≥ 72dB |
| Total Harmonic Distortion (THD) | < 0.5% at 1kHz, rated power |
| Built-in Media Player | USB port, SD card slot, digital FM tuner, and Bluetooth receiver |
| Remote Microphone Bus | RJ45 port supporting up to 8 × PA-2500RM 2-Zone Remote Microphones via CAT6 |
| Remote Control Panel Bus | RJ45 port supporting up to 2 × PA-2500SV 2-Zone Remote Wall Panels via CAT6 |
| Priority Levels | EMC > Mic 1 (VOX override) > Chime > Remote Mic (PA-2500RM) > Background Audio Sources |
| Remote Mute | Contact closure input (Closed circuit = mute background audio, Open circuit = normal) |
| Tone Controls | Individual Bass (±10dB at 100Hz) and Treble (±10dB at 10kHz) for each input channel |
| Chime Generator | Built-in 2/4-tone chime generator with dedicated chime volume adjustment |
| Protection Circuitry | Short-circuit, clip limiter, overload, and high-temperature thermal protection |
| Cooling System | Internal heatsink with thermostatically controlled low-noise cooling fan |
| Power Supply | AC 230V; 50/60Hz |
| Power Consumption | 300W |
| Form Factor | 19-inch 2U standard rack mount / tabletop chassis |
| Dimensions (W × D × H) | 484 × 405 × 88 mm |
| Net Weight | 6.6 kg |
Frequently Asked Questions
Can the CMX PA-2120MX route different audio sources to Zone 1 and Zone 2 simultaneously?
Yes. The PA-2120MX features full 2-zone matrix routing capability. You can route the integrated media player (Bluetooth, USB, SD, or FM) to Zone 1 while simultaneously directing an external line input or dedicated microphone to Zone 2, each with independent zone volume and tone controls.
Can 100V distributed speakers and 8-16Ω low-impedance speakers be used concurrently?
Yes. The PA-2120MX is equipped with dual output topology supporting both 100V constant-voltage lines and 8-16Ω low-impedance speakers on its zone terminals, provided the total connected power per zone does not exceed the 120W RMS rating.
How many remote paging microphones can be connected to the PA-2120MX?
The amplifier supports up to 8 units of the CMX PA-2500RM 2-zone remote paging microphone cascaded via standard CAT6 network cable using its dedicated RJ45 remote communication bus, allowing paging from up to 300 meters away.
How does the emergency fire alarm mute functionality integrate with building systems?
The PA-2120MX includes a dedicated MUTE contact closure port and an EMC priority RCA input. When triggered by the building’s central fire alarm control panel, the contact closure instantly silences all background music and localized audio, allowing critical emergency voice evacuation broadcasts through the EMC input.
What is the recommended speaker capacity headroom for 24/7 continuous commercial operation?
Commercial audio engineering standards dictate maintaining a 20% safety headroom margin. For each 120W RMS zone on the PA-2120MX, total connected speaker transformer taps should not exceed 96W to 100W for continuous 24/7 reliability.
Engineer Your Perfect Commercial Audio & Visual Environment
Contact our AV specialists for professional product selection, system integration, and turnkey installation support.
| Weight | 6.6 kg |
|---|---|
| Dimensions | 48.4 × 40.5 × 8.8 in |
| Brand | CMX Audio |
| Model | PA-2120MX |
| Rated Power Output | 2 × 120W RMS (240W Total) |
| Output Zones | 2 Independent Zones |
| Speaker Output Types | 100V & 8-16Ω (Simultaneous Support) |
| Audio Inputs | 3 × Combo XLR/6.35mm Mic/Line (+48V Phantom), 1 × RCA Line, 1 × EMC In, 1 × Remote Mute |
| Integrated Media Player | USB, SD Card, FM Tuner, Bluetooth Receiver |
| Remote Microphone Expansion | Up to 8 Units (PA-2500RM via RJ45/CAT6) |
| Remote Wall Panel Expansion | Up to 2 Units (PA-2500SV via RJ45/CAT6) |
| Frequency Response | 60Hz – 15kHz (±3dB) |
| Signal-to-Noise Ratio (S/N) | Line ≥ 85dB, Mic ≥ 72dB |
| Total Harmonic Distortion (THD) | < 0.5% |
| Protection Circuitry | Short-circuit, Clip, Overload, High-Temperature Thermal Protection |
| Power Consumption | 300W |
| Power Supply | AC 230V, 50-60Hz |
| Enclosure / Form Factor | 19-Inch 2U Rack Mount / Tabletop |
| Dimensions (W × D × H) | 484 × 405 × 88 mm |
| Net Weight | 6.6 kg |
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ProjecXive India –
The CMX PA-2120MX 2-Zone Matrix Mixer Amplifier (2×120W) is an excellent choice for commercial and professional AV installations. It delivers outstanding performance, reliable build quality, and seamless integration with standard AV infrastructure. Our team at ProjecXive India has verified this product for professional commercial use. Highly recommended for system integrators and AV designers.