XH-M562 TPA3116D2 50W+50W Dual Channel Mini Digital Amplifier Class D Amplifier

The XH-M562 is a compact Class D digital amplifier module featuring the TPA3116D2 chipset, delivering 50W+50W of stereo audio amplification with exceptional efficiency and minimal thermal dissipation. Audio engineers, DIY enthusiasts, and professional integrators use this module to upgrade speaker systems, build portable PA systems, and develop embedded audio solutions where space and power consumption are critical constraints. This amplifier solves the challenge of delivering high-fidelity, high-power audio output from compact form factors while maintaining low heat generation and requiring minimal external components.

Product Overview

The XH-M562 amplifier operates on Class D switching topology, which achieves efficiency rates exceeding 90% by using high-frequency pulse-width modulation to drive the output stage. Unlike traditional Class AB amplifiers that dissipate significant power as heat, the TPA3116D2 chipset employed in this module switches at approximately 384 kHz, allowing the output transistors to operate in saturation and cutoff regions rather than the linear region. This architecture delivers clean 50W per channel into 4-ohm loads with total harmonic distortion below 1%, making it suitable for high-fidelity applications ranging from home audio systems to professional portable amplification.

The XH-M562 module integrates a complete amplification solution on a single PCB with minimal external component requirements. The board includes integrated protection circuits for thermal shutdown, DC offset detection, and short-circuit protection, ensuring reliable operation in demanding environments. The dual-channel design provides independent left and right channel amplification with individual volume control potentiometers, allowing precise stereo imaging and level matching. The compact 80mm x 50mm form factor makes this module ideal for integration into custom enclosures, portable speaker builds, and space-constrained professional audio equipment.

Key Specifications

Specification	Details
Product Type	Class D Digital Audio Amplifier Module
Chipset	TPA3116D2
Output Power	50W + 50W stereo at 4 ohms, 30W + 30W at 8 ohms
Frequency Response	20Hz to 20kHz
Total Harmonic Distortion	Less than 1% at rated power
Supply Voltage	12V to 26V DC (typical 24V operation)
Input Impedance	10k ohms per channel
Signal to Noise Ratio	Greater than 100dB
Dimensions	80mm x 50mm x 20mm
Operating Temperature	-10 degrees Celsius to 60 degrees Celsius
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• TPA3116D2 Class D amplifier chipset with 90%+ efficiency and minimal heat generation compared to traditional amplifier designs
• Dual 50W stereo channels at 4-ohm impedance providing sufficient power for mid-range speaker systems and portable audio applications
• Integrated protection circuits including thermal shutdown, DC offset detection, and short-circuit protection for reliable long-term operation
• Compact 80mm x 50mm PCB form factor enabling integration into custom enclosures and space-constrained audio equipment
• Independent dual-channel volume control potentiometers allowing precise stereo level matching and individual channel adjustment
• Wide supply voltage range from 12V to 26V DC providing flexibility for battery-powered and AC-powered applications
• Low noise floor with signal-to-noise ratio exceeding 100dB ensuring clean audio reproduction without audible hum or interference
• Minimal external component requirements reducing circuit complexity and PCB real estate for system integration

Applications and Use Cases

• Portable Bluetooth speaker systems where compact size and high efficiency are essential for battery life extension and thermal management in enclosed enclosures
• DIY home audio projects including bookshelf speaker amplification, subwoofer amplifier modules, and powered monitor speaker builds
• Professional portable PA systems and mobile sound reinforcement equipment requiring compact amplification with adequate headroom for speech and music
• Embedded audio solutions in automotive systems, karaoke machines, and multimedia installations where space constraints demand miniaturized amplification
• Multi-room audio distribution systems where multiple XH-M562 modules can be deployed as zone amplifiers for independent room control
• Active speaker crossover implementations where dual channels can amplify separate frequency ranges for tweeter and woofer drivers

How to Use

Begin by verifying your power supply can deliver 24V DC at minimum 5 amps continuous current, as the TPA3116D2 requires stable voltage for optimal performance and protection circuit operation. Connect the positive and negative terminals from your power supply to the corresponding pads on the XH-M562 board, ensuring proper polarity to avoid damage to the chipset. The audio input signals should be connected to the left and right RCA input connectors or the corresponding solder pads if using direct wiring, maintaining signal levels between 100mV and 1V RMS for optimal signal-to-noise ratio without clipping.

Mount the amplifier module on a heatsink or thermally conductive surface if operating continuously at power levels above 30W per channel, as sustained operation at maximum power will generate heat despite the high efficiency of Class D topology. Connect your speakers to the output terminals, ensuring impedance matching to either 4 ohms or 8 ohms as specified on your board revision. Adjust the dual volume control potentiometers for balanced stereo output and desired listening levels, then power on the system and verify that both channels produce sound without distortion or protection circuit activation. Allow the module to warm up for 5-10 minutes before subjecting it to extended high-power operation to ensure proper thermal stabilization.

Frequently Asked Questions

What is the difference between Class D and Class AB amplifier topology?

Class D amplifiers like the TPA3116D2 use high-frequency pulse-width modulation to switch output transistors between saturation and cutoff states, achieving efficiency rates exceeding 90% with minimal heat generation. Class AB amplifiers operate output transistors in the linear region, dissipating significant power as heat and achieving only 50-70% efficiency. For portable and battery-powered applications, Class D topology provides superior battery life and eliminates the need for large heatsinks, making it ideal for the XH-M562 compact form factor.

Can I use the XH-M562 with 8-ohm speakers instead of 4-ohm speakers?

Yes, the XH-M562 is compatible with both 4-ohm and 8-ohm speaker impedances. At 8-ohm impedance, the output power reduces to approximately 30W per channel due to the reduced current draw, but the amplifier remains fully functional and protected. For maximum power output and dynamic headroom, 4-ohm speakers are recommended, but 8-ohm speakers can be used if space constraints or speaker availability dictate this choice.

What power supply voltage should I use for optimal performance?

The XH-M562 operates across a wide voltage range from 12V to 26V DC, with 24V being the optimal operating voltage for maximum power output and headroom. At 12V, the amplifier delivers reduced power but remains functional for lower-power applications. For maximum performance in professional applications, use a regulated 24V power supply with minimum 5-amp continuous current capacity and adequate filtering to minimize ripple and noise on the power rails.

Does the XH-M562 require a heatsink for continuous operation?

The XH-M562 can operate at moderate power levels (20-30W per channel) without a heatsink due to the high efficiency of Class D topology. However, for sustained operation at rated power (50W per channel), mounting the module on an aluminum heatsink or thermally conductive enclosure is recommended to maintain junction temperatures below 85 degrees Celsius and ensure reliable long-term operation. A small 100mm x 100mm aluminum plate with thermal adhesive is typically sufficient for most applications.

What is the input signal level required for the XH-M562?

The XH-M562 accepts audio signals between 100mV and 1V RMS at the input, with optimal performance typically achieved at 500mV RMS for clean amplification without clipping or excessive noise. The dual volume control potentiometers allow fine adjustment of input sensitivity, enabling compatibility with both line-level sources (such as audio interfaces and preamps) and lower-level sources (such as smartphone headphone outputs). Ensure your audio source provides adequate signal level to avoid excessive noise floor visibility at low listening volumes.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

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• Returns: 7-day return policy on manufacturing defects only

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