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CMX EA-500A 500W Commercial Mixer Amplifier
► 500W RMS Power: High-output commercial amplifier drives extensive distributed speaker networks with ease.
► All-in-One Media Player: Integrated Bluetooth wireless, USB flash, SD card, and FM radio.
► Multi-Tap Speaker Terminals: Supports 100V/70V distributed lines and 4–16 Ohm low-impedance systems.
► VOX Priority Paging: Mic 1 automatically mutes background music for clear emergency announcements.
► 48V Phantom Power: Balanced XLR input powers professional commercial paging and condenser microphones.
► 5-Channel Audio Mixing: Independent volume controls for 3 mics, 2 aux, and master tone.
► Comprehensive Protection Suite: Safeguards against short circuits, signal clipping, overload, and high temperatures.
► Rugged 2U Rack Chassis: Standard 19-inch rack-mount profile engineered for reliable 24/7 commercial duty.
CMX EA-500A 500W Commercial Mixer Amplifier
High-Power 500W RMS Commercial Public Address Tabletop & 19″ Rack-Mount Mixer Amplifier with Bluetooth, USB/SD Media Player, FM Tuner & 100V/70V Distributed Audio Line Outputs
The CMX EA-500A is an enterprise-grade 500W RMS commercial public address mixer amplifier engineered for large facilities requiring high audio power and multi-source playback. Equipped with an integrated media player featuring Bluetooth streaming, USB/SD card playback, and a digital FM tuner, it eliminates the need for external audio sources. With high-voltage 100V/70V distributed speaker outputs, 4–16Ω low-impedance connections, 3 microphone inputs with VOX priority and phantom power, and independent tone controls, the EA-500A provides reliable continuous sound reinforcement across commercial environments in India.
Ideal For
- ✓ Corporate Headquarters & Tech Parks
- ✓ Large Shopping Malls & Retail Complexes
- ✓ Auditoriums & Educational Campuses
- ✓ Multi-Specialty Hospitals & Healthcare Facilities
- ✓ Hotels, Banquet Halls & Resorts
- ✓ Airports, Railway Stations & Bus Terminals
- ✓ Industrial Manufacturing Plants & Warehouses
Core Engineering Features
500W RMS Continuous Audio Output
High-capacity transformer delivers 500 watts RMS continuous power to comfortably drive up to 133 ceiling speakers tapped at 3W across large facilities.
Integrated Multi-Source Media Player
Built-in front-panel audio player supports wireless Bluetooth streaming, USB flash drives, SD memory cards, and digital FM radio with IR remote control.
High & Low Impedance Speaker Terminals
Equipped with heavy-duty screw terminals supporting 100V and 70V commercial distributed lines, plus 4Ω, 8Ω, and 16Ω direct low-impedance speaker setups.
Balanced Mic 1 with Phantom & VOX
Rear balanced XLR input includes switchable +48V phantom power for condenser microphones and voice-activated (VOX) priority override over all music channels.
5-Channel Mixing with 2-Band Master EQ
Independent front-panel gain dials for Mic 1, Mic/Line 2-3, Line 1-2, plus master volume and precision Bass (±10dB) / Treble (±10dB) acoustic tone shaping.
Comprehensive Protection Circuitry
Full electronic safeguards against output short circuits, signal clipping, overload, and high thermal buildup with dedicated front LED supervision.
Speaker Matching & System Compatibility
With a massive 500W RMS output (400W usable continuous load at 80% headroom), the CMX EA-500A is designed to power large commercial speaker networks:
Large Multi-Zone Ceiling Networks
Foreground Music & Outdoor Corridors
Preamp Line-Out Expansion
100V Line Wiring & Tap Calculation Guide
80% Safety Headroom Rule: Total connected speaker wattage must not exceed 80% of the amplifier’s 500W RMS rating (maximum 400W continuous speaker load). This provides necessary headroom for cable impedance losses and dynamic musical peaks.
EA-500A Speaker Capacity Matrix (400W Usable Load):
- Parallel Daisy Chaining: Connect all 100V speakers in parallel (+ to 100V screw terminal, – to COM). Total speaker tap wattage must remain ≤ 400W.
- Mic 1 VOX Mute: When an announcement is spoken into Mic 1, background music automatically attenuates and restores cleanly once speech ceases.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | EA-500A (Series: EA-60A, EA-120A, EA-240A, EA-350A, EA-500A) |
| Brand | CMX Audio |
| Product Type | Commercial Public Address Mixer Amplifier with Media Player |
| Rated Power Output | 500 Watts RMS continuous |
| Speaker Outputs | 100V, 70V constant-voltage line & 4Ω, 8Ω, 16Ω low-impedance |
| Built-In Audio Sources | Bluetooth wireless, USB port, SD card slot, digital FM tuner with IR remote |
| Microphone Inputs | Mic 1: Balanced XLR with +48V Phantom Power & VOX priority | Mic 2–3: Unbalanced 6.35mm jack |
| Auxiliary Inputs & Outputs | 2 × RCA line inputs (Line 1–2), 1 × RCA line pre-out (0.775V, 0 dBV) |
| Input Sensitivity & Impedance | Mic 1–3: 5–8 mV, 600 Ω | Line 1–2: 150–470 mV, 10 kΩ unbalanced |
| Frequency Response | 60 Hz – 15 kHz (±3 dB) |
| Signal-to-Noise Ratio (S/N) | Line ≥ 85 dB, Mic ≥ 72 dB |
| Total Harmonic Distortion (THD) | < 0.5% at 1 kHz |
| Tone Control | Bass: ±10 dB at 100 Hz | Treble: ±10 dB at 10 kHz |
| Front Panel Indicators | Power, Clip, Protect, Signal LEDs |
| Protection System | Short-circuit, clip limiter, overload, and high temperature protection |
| Power Supply & Consumption | 230V AC, 50-60 Hz | 650 Watts power consumption |
| Chassis Dimensions (W × D × H) | 484 mm × 405 mm × 88 mm (Standard 19-inch 2U Rack Mount) |
| Net Weight | 8.9 kg |
Frequently Asked Questions
What makes the CMX EA-500A suitable for large commercial venues?
The EA-500A generates a powerful 500W RMS output, allowing it to drive up to 133 ceiling speakers tapped at 3W or 20 outdoor wall speakers at 20W across extensive commercial facilities without needing multiple separate power amplifiers.
Can I stream audio wirelessly via Bluetooth on the EA-500A?
Yes. The built-in media player includes wireless Bluetooth pairing for smartphones, tablets, and laptops, alongside front-panel USB and SD card slots and an FM digital radio tuner, all controllable via the included IR remote.
How does the VOX priority override work on Mic 1?
When an announcement is spoken into the Mic 1 balanced XLR input, the internal voice-operated switch (VOX) automatically ducks all background music from other inputs. The background music smoothly returns to normal volume once the voice announcement finishes.
Does the amplifier support both 100V distributed lines and 8-Ohm low impedance?
Yes. The heavy-duty output terminal barrier strip provides dedicated terminals for 100V and 70V high-impedance distributed speaker lines, as well as 4Ω, 8Ω, and 16Ω low-impedance connections for direct speaker setups.
Can the EA-500A be connected to additional power amplifiers?
Yes. The amplifier features an RCA line pre-out (0.775V, 0 dBV) that can be linked directly into external power boosters like the CMX DA-240 to expand power capacity to other buildings or zones.
Need Commercial AV System Design or B2B Pricing in India?
ProjecXive is an authorized commercial AV partner in India. Contact our sound engineering team for enterprise project quotes, load calculation verification, and official warranty support.
| Weight | 8.9 kg |
|---|---|
| Model | EA-500A |
| Brand | CMX Audio |
| Product Type | Commercial Public Address Mixer Amplifier |
| Rated Power Output | 500W RMS continuous |
| Speaker Outputs | 100V, 70V, 4-16 Ohm low-impedance |
| Built-In Audio Sources | Bluetooth Wireless, USB Flash Drive, SD Memory Card, Digital FM Tuner |
| Microphone Inputs | 3 Inputs (Mic 1: Balanced XLR with +48V Phantom & VOX Priority; Mic 2-3: 6.35mm jack) |
| Auxiliary Inputs | 2 x RCA Line Inputs (Line 1-2) |
| Frequency Response | 60 Hz – 15 kHz (+/-3 dB) |
| Signal-to-Noise Ratio (S/N) | Line >= 85 dB, Mic >= 72 dB |
| Total Harmonic Distortion (THD) | < 0.5% at 1 kHz |
| Tone Control | Bass: +/-10 dB (100 Hz), Treble: +/-10 dB (10 kHz) |
| Power Consumption | 650 Watts |
| Protection Circuits | Short-circuit, clip limiter, overload, high temperature |
| Auxiliary Output | 1 x RCA Line Pre-Out (0.775V, 0 dBV) |
| Input Sensitivity & Impedance | Mic 1-3: 5-8 mV, 600 Ohm, Line 1-2: 150-470 mV, 10 kOhm |
| Front Panel Indicators | Power, Clip, Protect, Signal LEDs |
| Power Supply | AC 230V, 50-60 Hz |
| Chassis & Mounting | Standard 19-Inch 2U Rack Mount / Tabletop |
| Dimensions (W x D x H) | 484 mm x 405 mm x 88 mm |
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ProjecXive India –
The CMX EA-500A 500W Commercial Mixer Amplifier is an outstanding, heavy-duty commercial audio solution. It delivers robust 500W RMS power, all-in-one Bluetooth and USB/FM media playback, and clean 100V/70V distribution. Verified and highly recommended by ProjecXive India for enterprise commercial AV installations.