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CMX EA-240A 240W Commercial Rack-Mount Mixer Amplifier
► High-Efficiency 240W RMS Output: Powers high-capacity distributed 100V loudspeaker networks across large commercial venues.
► 19-Inch 2U Rack Chassis: Standard equipment rack installation with dual rugged aluminum front handles.
► Multi-Source Media Player: Integrated Bluetooth wireless audio streaming, USB flash drive, SD card, and FM tuner.
► Multi-Tap 100V/70V/8Ω Terminals: Connects long-distance distributed 100V lines or low-impedance stereo speakers.
► Mic 1 VOX Priority Override: Automatically mutes background audio sources during emergency or general paging.
► Switchable +48V Phantom Power: Direct compatibility on XLR input with professional condenser gooseneck microphones.
► Dual Aux & Dual Mic Inputs: Supports external audio players, video matrix switchers, wireless mic receivers, and mixers.
► Industrial Protection Architecture: Comprehensive safeguards against short circuits, clipping, thermal overload, and overheating.
CMX EA-240A 240W Commercial Rack-Mount Mixer Amplifier
Professional High-Power 240W RMS 19-Inch Rack Mount Commercial PA Mixer Amplifier with Built-In Bluetooth, USB/SD Media Player, FM Tuner, 100V/70V & 4–16Ω Speaker Outputs, VOX Priority, and Dual Handles for Enterprise Public Address Systems
The CMX EA-240A is a heavy-duty 240W RMS commercial mixer amplifier engineered in a standardized 19-inch 2U rack-mount chassis with reinforced aluminum handles, designed for demanding, high-capacity public address (PA) and background music (BGM) installations. Delivering double the power of the EA-120A, this unit effortlessly drives larger arrays of distributed ceiling loudspeakers, projection speakers, and paging horns across commercial facilities. It features an integrated front-panel digital media player with Bluetooth wireless audio streaming, USB flash drive, SD memory card playback, and a digital FM radio tuner with an informative blue LCD status display. Equipped with multi-tap 100V and 70V commercial distributed lines alongside 4–16Ω low-impedance taps, a balanced XLR microphone input with switchable 48V phantom power and VOX priority override, and industrial multi-stage safety circuitry, the EA-240A provides robust, reliable 24/7 commercial performance.
Ideal For
Core Engineering Features
High-Power 240W RMS Commercial Output
Delivers a robust 240 Watts of continuous, low-distortion clean power, making it ideal for large-scale commercial facilities requiring higher acoustic volume and extended speaker arrays.
Standardized 19″ Rack Mount Enclosure with Handles
Constructed in a heavy-duty 2U 19-inch rack-mountable metal chassis featuring reinforced dual front aluminum handles for clean, secure AV equipment rack integration.
Integrated Bluetooth & Digital MP3 Media Player
Incorporates a front-panel digital media player supporting wireless Bluetooth streaming, USB flash drives, SD cards, and a digital FM tuner with a clear LCD status screen.
Multi-Tap 100V, 70V & 4–16Ω Speaker Terminals
Supports high-voltage 100V and 70V commercial distributed speaker lines for long-distance runs without line loss, as well as direct 4Ω, 8Ω, and 16Ω low-impedance connections.
Balanced XLR Mic with Phantom Power & VOX Priority
Features a balanced XLR Mic 1 input with switchable 48V phantom power for condenser gooseneck mics and automatic voice-activated (VOX) priority that silences background music during announcements.
Flexible Dual Aux & Mic/Line Connectivity
Provides two switchable 6.35mm microphone/line inputs, two stereo RCA auxiliary inputs for external players, independent input gain controls, and master Bass/Treble EQ.
Industrial Multi-Stage Safety & Protection Suite
Built with comprehensive protective circuitry safeguarding against output short-circuits, signal clipping distortion, overload, and thermal overheating with dedicated LED status indicators.
100V Line Wiring & Tap Calculation Guide (240W Capacity)
To guarantee long-term thermal reliability and prevent amplifier clipping, commercial audio engineering mandates an 80% continuous operating rule. With a rated 240W RMS output, the CMX EA-240A provides 192W of usable continuous acoustic power with a generous 48W dynamic safety headroom margin against cable resistance and transformer insertion loss.
| Speaker Category & Model | 100V Line Tap | Max Recommended Speakers | Total Continuous Load |
|---|---|---|---|
| Ceiling Speakers (CMX CSK-56PC) | 6W Tap | Up to 32 Speakers | 192 Watts (Safe 80% Load) |
| Coaxial Ceiling Speakers (CMX CSK-66H) | 10W Tap | Up to 19 Speakers | 190 Watts (Safe 80% Load) |
| Wall Mount Speakers (CMX WSK-530T) | 15W Tap | Up to 12 Speakers | 180 Watts (Safe 80% Load) |
| Column Speakers (CMX WSK-640CS) | 30W Tap | Up to 6 Speakers | 180 Watts (Safe 80% Load) |
| Outdoor Garden Speakers (CMX GSK-30C) | 15W Tap | Up to 12 Speakers | 180 Watts (Safe 80% Load) |
Speaker Matching & System Compatibility
As an authorized commercial AV distributor in India, ProjecXive engineers fully matched end-to-end sound reinforcement ecosystems. The CMX EA-240A seamlessly integrates with:
Commercial Ceiling Speakers
Ideal for false ceilings in department stores, corporate cafeterias, and hospital corridors.
Surface Wall & Column Speakers
Perfect for auditoriums, gyms, prayer halls, and school assembly halls.
Outdoor Landscape & Weatherproof
Engineered for perimeter security, outdoor resort lawns, and garden pathways.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | CMX EA-240A |
| Brand | CMX Audio |
| Product Category | High-Power 19-Inch Rack Mount Commercial Mixer Amplifier with Bluetooth |
| Rated Power Output | 240 Watts RMS Continuous |
| Speaker Outputs | 100V / 70V Constant Voltage & 4Ω, 8Ω, 16Ω Low-Impedance Terminals |
| Integrated Media Player | Bluetooth Audio Streaming, USB Flash Drive MP3, SD Card, FM Digital Radio |
| Microphone Inputs | Mic 1: Balanced XLR with 48V Phantom Power & VOX Priority; Mic 2-3: 6.35mm (1/4″) Phone Jack Mic/Line Switchable |
| Auxiliary Line Inputs | 2 × Stereo RCA Line Inputs (Line 1, Line 2; 150-470mV, 10kΩ) |
| Line Output | 1 × Stereo RCA Audio Output (0.775V / 0 dBV) |
| Frequency Response | 60 Hz – 15 kHz (±3 dB) |
| Total Harmonic Distortion (THD) | < 0.5% at 1 kHz Rated Output |
| Signal-to-Noise Ratio (SNR) | Line: ≥ 85 dB; Mic: ≥ 72 dB |
| Tone Controls | Bass: ±10 dB at 100 Hz; Treble: ±10 dB at 10 kHz |
| Circuit Protection | Short-Circuit, Signal Clip, Overload, High-Temperature Thermal Protection |
| Status Indicators | Power, Signal, Clip, Protection LEDs, and Media LCD Screen |
| Power Requirements | AC 230V, 50/60 Hz Standard Mains |
| Power Consumption | 310 Watts Maximum |
| Form Factor | 19-Inch 2U Rack Mount Metal Chassis with Dual Front Handles |
| Chassis Dimensions (W × D × H) | 484 mm × 405 mm × 88 mm |
| Net Weight | 8.6 kg |
Frequently Asked Questions
What is the primary difference between the CMX EA-120A and the CMX EA-240A?
Both models share the exact same standardized 19-inch 2U rack-mount chassis with dual handles, media player (Bluetooth/USB/SD/FM), inputs, and protection architecture. The key difference is power: the EA-240A delivers 240W RMS continuous output (compared to 120W on the EA-120A), allowing it to drive twice the number of 100V ceiling speakers or horns across larger commercial venues.
How many 100V ceiling speakers can I connect to the CMX EA-240A?
With a 240W RMS rating and standard engineering headroom (20% margin recommending up to ~190W–200W total speaker load), you can connect approximately thirty-two to thirty-eight 6W ceiling speakers, or nineteen to twenty 10W ceiling speakers tapped on the 100V line.
Can the EA-240A power both 100V line speakers and low-impedance speakers?
Yes. The EA-240A features multi-tap speaker output terminals on the rear panel supporting standard 100V and 70V commercial distributed speaker lines as well as 4-Ohm, 8-Ohm, and 16-Ohm direct low-impedance loads.
How does the VOX microphone priority override function on the EA-240A?
When an announcement is spoken into the primary balanced XLR Mic 1 input, the automatic VOX circuit instantly ducks (attenuates) background music playing from Bluetooth, USB, SD, or RCA Aux inputs. Once the speaker finishes talking, background audio seamlessly fades back to normal listening levels.
Does the EA-240A include built-in rack-mounting brackets?
Yes. The EA-240A is built in a 19-inch 2U rack-mount metal chassis with integrated front mounting ears and dual heavy-duty aluminum handles, enabling immediate installation into standard 19-inch AV equipment racks.
Engineer Your Perfect Commercial Audio & Visual Environment
Contact our AV specialists for professional product selection, system integration, and turnkey installation support.
| Model | CMX EA-240A |
|---|---|
| Brand | CMX Audio |
| Product Type | 19-Inch 2U Rack-Mount Commercial Mixer Amplifier |
| Rated Power Output | 240 Watts RMS Continuous |
| Speaker Outputs | 100V, 70V & 4–16Ω Low-Impedance Screw Terminals |
| Built-In Audio Sources | Bluetooth Wireless Streaming, USB Flash Drive, SD Card, Digital FM Tuner |
| Microphone Inputs | 3 Inputs: Mic 1 Balanced XLR with +48V Phantom & VOX, Mic 2-3 6.35mm Jacks |
| Auxiliary Inputs | 2 Line Inputs (Dual Stereo RCA) |
| Auxiliary Output | 1 Line Output (Dual Stereo RCA for Booster / Recording) |
| Chassis Form Factor | Standard 19-Inch 2U Rack-Mount with Dual Heavy-Duty Handles |
| Frequency Response | 60 Hz – 15 kHz (±3 dB) |
| Signal-to-Noise Ratio (S/N) | Mic: ≥66 dB, Line/Aux: ≥75 dB |
| Total Harmonic Distortion (THD) | ≤0.5% at 1 kHz (Rated Power Output) |
| Tone Control | Bass: ±10 dB at 100 Hz, Treble: ±10 dB at 10 kHz |
| Priority Paging Override | Mic 1 VOX Automatic Override (Attenuates Mic 2-3 & Aux 1-2) |
| Cooling System | Internal Forced-Air Cooling Fan with Low-Noise Aerodynamic Ducting |
| Front Panel Indicators | Power, Signal, Peak/Clip, and Protect LEDs |
| Protection Circuits | Short-Circuit, Signal Clip, Overload, High-Temperature Safeguards |
| Power Supply | AC 220V–240V, 50/60 Hz |
| Dimensions (W x D x H) | 484 x 350 x 88 mm (Standard 19-Inch 2U Rack) |
| Weight | 7.6 kg |
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ProjecXive India –
The {‘author’: ‘ProjecXive Commercial Audio Specialist’, ‘author_email’: ‘support@projecxiveindia.in’, ‘rating’: 5, ‘content’: ‘The CMX EA-240A delivers powerhouse 240W RMS performance with clean audio clarity across 100V lines. Built in a heavy-duty 19-inch 2U rack enclosure with integrated Bluetooth, USB/SD media playback, VOX priority override, and industrial safety protection, it is an outstanding amplification solution for large enterprise venues.’} 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.