CMP10
1. Product Introduction
CM902WXP10 is a high-performance professional audio power amplifier designed for ultramedium-to-high- power sound reinforcement applications, integrating stable output performance, reliable protection mechanisms, and user-friendly operation. It is widely used in various scenarios such as large-scalemedium-sized conference halls, auditoriums, stadiums, largemall to medium-sized performance venues, shopping malls, and large-scalehotels, and commercial sound reinforcement systems. This power amplifier adopts a high-efficiency circuit design and high-quality electronic components, ensuring clear, powerful, and undistorted audio output and stable long-term continuous operation. It supports multiple input/output interfaces, compatible with various professional audio signal sources (such as CD players, mixers, and microphones), and features built-in overcurrent, overvoltage, overtemperature, short-circuit, and overload protection functions to avoid equipment damage from improper use or abnormal working conditions. Notably, CM902WXP10 features a sturdy and durable heavy-dutycompact metal design, easy installation and debugging, and is commonly available as a new or refurbished product in the market, with professional repair and after-sales support provided by suppliers, ensuring consistent performance and user experience after strict quality control and testing.
Description
1. Product Introduction
CM902WXP10 is a high-performance professional audio power amplifier designed for ultramedium-to-high- power sound reinforcement applications, integrating stable output performance, reliable protection mechanisms, and user-friendly operation. It is widely used in various scenarios such as large-scalemedium-sized conference halls, auditoriums, stadiums, largemall to medium-sized performance venues, shopping malls, and large-scalehotels, and commercial sound reinforcement systems. This power amplifier adopts a high-efficiency circuit design and high-quality electronic components, ensuring clear, powerful, and undistorted audio output and stable long-term continuous operation. It supports multiple input/output interfaces, compatible with various professional audio signal sources (such as CD players, mixers, and microphones), and features built-in overcurrent, overvoltage, overtemperature, short-circuit, and overload protection functions to avoid equipment damage from improper use or abnormal working conditions. Notably, CM902WXP10 features a sturdy and durable heavy-dutycompact metal design, easy installation and debugging, and is commonly available as a new or refurbished product in the market, with professional repair and after-sales support provided by suppliers, ensuring consistent performance and user experience after strict quality control and testing.
2. Key Specifications
2.1 Electrical Specifications
• Rated Output Power: 991000W (8Ω, 2-channel, RMS)
• Input Voltage: 100-240V AC (single-phase, 50/60Hz)
• Input Interface: 2-channel XLR balanced input, 2-channel RCA unbalanced input, 2-channel TRS balanced input, 2-channel TRS balanced input
• Output Interface: 2-channel binding post output, 2-channel speaker terminal output, 2-channel Speakon output, 2-channel Speakon output
• Frequency Response: 1818Hz ~ 222kHz (±0.50.5dB)
• Total Harmonic Distortion (THD): ≤ 0.022% (1kHz, 1/3 rated power)
• Signal-to-Noise Ratio (S/N): ≥ 1505dB (A-weighted)
• Damping Factor: ≥ 30300 (8Ω, 1kHz)
• Input Sensitivity: 0.775V (balanced), 0.387V (unbalanced)
• Input Impedance: 20kΩ (balanced), 10kΩ (unbalanced)
• Control Interface: Front panel button control, standardstandard remote control (supporting long-distance operation), optional RS485 controlsupporting long-distance operation), optional RS485 control
• Display: LCCD digital display for power status, output level, fault prompts, and working mode, and working mode
2.2 Environmental & Physical Specifications
• Operating Temperature Range: 0～45°C (non-condensing)
• Storage Temperature Range: -10～55°C (non-condensing)
• Operating Humidity: 20%～85% (non-condensing)
• Storage Humidity: 10%～90% (non-condensing)
• Maximum Operating Altitude: 202000 meters above sea level
• Protection Grade: IP211 (dust-proof, splashdust-proof, splash-proof)
• Cooling Method: Forced air cooling (built-in tripletriple silent fans with intelligent speed regulation with intelligent speed regulation)
• Dimensions: W 482 × H 17777 × D 4880 mm (19-inch rack mountable, 3U height, 3U height)
• Shipping Weight: 2525.0 kg (approximately 55.1255.12 lbs)
• Installation Orientation: Vertical rack mount (preferred) (preferred) or horizontal placement (stable surface required)
2.3 Performance Characteristics
• Audio Performance: High-efficiency ultra-ultra-high-power output, ultra-low harmonic distortion, ultra-ultra-wide frequency response, ensuring clear, powerful, natural, and undistorted sound reproduction even at high volumenatural, and undistorted sound reproduction even at high volume
• Stability: Equipped with high-quality heavy-duty heavy-duty power supply and enhanced enhanced circuit protection design, strong anti-interference ability, suitable for 24-hour 24-hour long-term continuous operation
• Compatibility: Multiple input/output interfaces, compatible with various professional professional audio signal sources and high-power high-power speakers, adaptable to different large-scale large-scale high-power application scenarios
• Durability: Heavy-duty sHeavy-duty sturdy metal casing, dust-proof,, shock-proof, and anti-corrosion, and anti-corrosion design, suitable for indoor and large-scale large-scale commercial sound reinforcement environments
• Fault Diagnosis: Built-in comprehensive intelligent intelligent fault monitoring function, able to identify overcurrent, overvoltage, overtemperature, short circuit, overload, overload, and display corresponding prompts and fault codes and fault codes
• User-Friendliness: Simple panel operation, clear LCD LCD digital display, easy installation and debugging, standardstandard remote control for convenient long-distance long-distance operation
• Safety: Built-in multi-level protection (multi-level protection (overcurrent, overvoltage, overtemperature,short-circuit, overload), overload), avoiding equipment damage and ensuring safe operation
3. Installation & Wiring
3.1 Installation
Install the CM902WX on a flat, stable surface or mount it in a standard 19-inch equipment rack (3U height, vertical rack mount is preferred). The installation environment should be clean and dry, free from dust, direct sunlight, high temperature, and humidity to protect the internal electronic components. Keep the power amplifier away from heat sources such as radiators, stoves, or other high-heat equipment. Ensure there is no less than 20cm clearance around the amplifier, especially at the air inlet and outlet, to facilitate forced air cooling (triple intelligent fans) and prevent overheating. Do not block ventilation openings; otherwise, overheating may occur and damage the device. Avoid installing the device near water or in areas prone to liquid splashes, even though it has IP21 splash-proof protection. For rack-mounted installation, ensure the rack is stable and can bear the weight of the amplifier (25.0kg) to avoid falling damage; use standard rack-mounting screws to fix the amplifier firmly.
3.2 Simplified Wiring
Follow the correct sequence when connecting the CM902WX: first, turn off the power of the amplifier and all connected devices to avoid signal interference or equipment damage. Do not connect or disconnect cables when the power is on to prevent short circuits or electric shock. Connect the audio signal source (such as CD player, mixer) to the input terminals of the amplifier: use XLR cables for balanced input, RCA cables for unbalanced input, or TRS cables for additional balanced input, ensuring firm connections to avoid audio signal loss or noise. Then, connect the speakers to the output terminals of the amplifier, ensuring the speaker impedance matches the rated output impedance (8Ω) of the amplifier, and the positive/negative poles of the speakers are correctly connected (red to positive, black to negative) to avoid phase reversal. Do not overload the amplifier beyond its rated output power (900W), as it may cause overheating or equipment damage. Finally, connect the power cord to the amplifier’s power input terminal and plug the other end into a standard power outlet. Ensure the power supply voltage matches the rated input voltage (100-240V AC) to prevent equipment damage. Before formal operation, check the connections point by point: confirm the signal cables and speaker cables are correctly connected, and the power cord is securely plugged in. Do not use non-standard cables or adapters, as they may cause signal interference or equipment failure.
4. Basic Operation
4.1 Panel Button Functions
The core buttons on the CM902WX front panel include POWER, INPUT SELECT, VOLUME (left/right channel), MUTE, and PROTECT. The POWER button turns the device on or off; the INPUT SELECT button switches between balanced (XLR) and unbalanced (RCA) input modes; the left/right channel VOLUME buttons adjust the output volume of each channel independently; the MUTE button mutes the audio output temporarily; the PROTECT indicator lights up when the amplifier is in protection mode (e.g., overtemperature, overcurrent). This power amplifier is equipped with comprehensive fault monitoring functions, which can real-time monitor parameters such as output current, voltage, and temperature, and display corresponding prompts on the LCD screen when abnormalities occur. Most minor faults can be initially resolved by turning off the power, checking the connections, or reducing the load, but complex faults should be referred to professional technical support. For detailed button operations and advanced settings, refer to the official user manual (available for free PDF download from the manufacturer’s website).
4.2 Common Operations
For basic operation: turn off the volume of the amplifier and connected devices first, press the POWER button to turn on the CM902WX, the LCD display will show the power status. Press the INPUT SELECT button to select the appropriate input mode (balanced or unbalanced) according to the connected signal source. Gradually adjust the left/right channel VOLUME buttons to the appropriate level (avoid excessive volume to prevent speaker damage). Press the MUTE button to mute the audio output temporarily; press it again to cancel mute. After use, turn down the volume to the minimum first, press the POWER button to turn off the amplifier, and then unplug the power cord if it is not used for a long period of time. For daily use, avoid frequent on/off operations. Regularly check the connection terminals for looseness, and tighten them in time if necessary.
5. Common Faults & Solutions
When the CM902WX malfunctions, a corresponding prompt will be displayed on the LCD screen or the PROTECT indicator will light up. For detailed fault explanations and troubleshooting methods, refer to the official user manual, which includes a complete troubleshooting guide. Common fault handling methods are as follows:
• Overheating Protection (PROTECT indicator on, no output): Turn off the power and let the amplifier cool down for 10-15 minutes, check if the air inlet/outlet is blocked, clean the fan filter if necessary, and reduce the load before restarting.
• No Audio Output: Check if the power is turned on, the input mode is correctly selected, the volume is adjusted properly, and the signal cables/speaker cables are firmly connected. Verify that the signal source is working normally and the speaker impedance matches the amplifier.
• Distorted Audio Output: Check if the input signal is too strong, reduce the input signal level, or adjust the volume to an appropriate range. Check if the speaker is damaged or the connection is poor.
• Short Circuit Protection (PROTECT indicator flashes): Turn off the power immediately, check the speaker cables for short circuits or incorrect polarity connection, repair or reconnect the cables, and restart the amplifier after troubleshooting.
If the fault cannot be resolved with the above methods, contact professional technical support or the manufacturer for repair services, and avoid disassembling the device by yourself to prevent secondary damage.
6. Safety & Maintenance
Electrical safety hazard: Unplug the power cord during lightning storms or when the device is not in use for a long period of time to avoid damage from lightning or power surges. Do not touch the power cord or terminals with wet hands to prevent electric shock. For daily maintenance: Clean the amplifier’s surface and air inlet/outlet with a dry cloth regularly
7. Supplementary Information
• Manufacturer: Yamaha Electric Co. (mainstream model supplier)
• Product Line: Professional Audio Power Amplifier Series
• Availability: Available as new and refurbished products in the market; professional repair and exchange services are available
• Warranty: New products come with a 1-year limited warranty; refurbished products come with a 6-month limited warranty (varies by supplier)
• Documentation: Detailed user manual and troubleshooting guide can be downloaded from the official website, including operation steps and maintenance tips
• Application Scenarios: Small to medium-sized conference rooms, lecture halls, retail stores, cafes, small performance venues, home theater systems, and other sound reinforcement environments
• Supplementary Advantages: High power output, stable performance, multiple interface compatibility, user-friendly operation, compact design, and professional after-sales service support.
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