Digital Sub woofer Power Amplifier Board TPA3116D2 DC 12-24 V, 3 Channel

The TPA3116D2 is a high-performance digital subwoofer power amplifier board featuring Class D amplification technology designed to deliver powerful bass output with minimal power consumption. Professional audio engineers, home theater installers, and automotive sound system designers rely on this board to drive subwoofers with exceptional clarity and dynamic range across its 3-channel configuration. This amplifier solves the critical challenge of delivering clean, distortion-free low-frequency reproduction while operating efficiently from compact 12-24V DC power supplies.

Product Overview

The TPA3116D2 utilizes advanced Class D amplification architecture, which converts analog audio signals into high-frequency PWM (Pulse Width Modulation) signals that drive the output stage with remarkable efficiency. This topology delivers significantly more power output compared to traditional Class AB amplifiers while generating minimal heat, making it ideal for space-constrained installations. The 3-channel configuration allows simultaneous amplification of subwoofer channels with independent gain control and crossover filtering capabilities, enabling precise tuning of low-frequency response in professional audio applications.

The board's wide voltage input range of 12-24V DC provides exceptional flexibility for integration into various power supply ecosystems, from automotive installations to professional studio setups. The TPA3116D2 chipset incorporates integrated protection circuitry including thermal shutdown, short-circuit protection, and DC offset detection, ensuring reliable long-term operation even in demanding environments. The compact PCB design facilitates easy integration into custom enclosures while maintaining optimal thermal characteristics through strategic component placement and copper area distribution.

Key Specifications

Specification	Details
Product Type	Digital Class D Subwoofer Power Amplifier Board
Chipset	TPA3116D2
Channels	3 Channel Configuration
Power Supply Voltage	DC 12-24V
Output Power	2x100W at 4 Ohms, 1x100W Subwoofer Channel
Frequency Response	20Hz - 20kHz
THD+N	Less than 0.1% at rated power
Input Impedance	10kOhms
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

• Class D Digital Amplification with 92% power efficiency, reducing heat dissipation and power consumption compared to analog amplifiers
• Wide Supply Voltage Range of 12-24V DC enabling flexible integration into automotive, portable, and stationary audio systems
• 3-Channel Independent Amplification allowing simultaneous control of left, right, and subwoofer channels with individual gain adjustment
• Integrated Protection Circuitry including thermal shutdown at 150 degrees Celsius, short-circuit protection, and DC offset detection for safe operation
• Low Distortion Output with THD+N below 0.1% ensuring pristine audio reproduction without audible artifacts
• Compact PCB Design measuring approximately 12x8cm, facilitating integration into custom enclosures and space-limited installations

Applications and Use Cases

• Home Theater Systems requiring dedicated subwoofer amplification with clean bass reproduction and dynamic range for movie soundtracks
• Automotive Audio Installations in vehicles where compact amplifiers are essential for trunk-mounted subwoofer enclosures with 12V power availability
• Professional Studio Monitoring Systems using the TPA3116D2 for accurate low-frequency reproduction in mastering and mixing environments
• Portable PA Systems and DJ Equipment requiring lightweight, power-efficient amplification from battery or vehicle power sources
• DIY Audio Projects including custom speaker systems, gaming setups, and multimedia installations where flexible voltage input is beneficial
• Bluetooth Speaker Modifications integrating the amplifier board to enhance bass output in portable wireless audio devices

How to Use

Begin by selecting an appropriate power supply within the 12-24V DC range, ensuring adequate current capacity for your desired output power level. Connect the positive and negative power supply terminals to the board's power input while observing correct polarity to prevent damage. Connect your audio source signals to the RCA or 3.5mm input connectors, adjusting the input level potentiometers to achieve optimal signal strength without clipping. Connect your speaker loads to the output terminals, ensuring impedance matches the board's specifications and that all connections are secure before powering on the system.

For subwoofer-specific applications, utilize the dedicated subwoofer channel with appropriate low-pass filtering to isolate bass frequencies below 100Hz. Adjust the gain controls gradually while monitoring output for distortion, starting at minimum gain and increasing until you achieve the desired volume level. Allow adequate ventilation around the amplifier board during operation, as Class D amplifiers generate minimal but concentrated heat. For automotive installations, install the amplifier in a location protected from moisture and vibration, using appropriate shielding to minimize electromagnetic interference with vehicle electronics.

Frequently Asked Questions

What is the maximum output power of the TPA3116D2 amplifier board?

The TPA3116D2 delivers approximately 2x100W at 4 Ohms for the stereo channels and 100W for the dedicated subwoofer channel when powered from a 24V supply. Output power scales proportionally with supply voltage, so at 12V operation you can expect approximately 50% of these ratings. Always verify your specific power supply voltage and speaker impedance to calculate exact output capabilities for your application.

Can I use this amplifier with a 12V car battery?

Yes, the TPA3116D2 is fully compatible with 12V automotive power systems. The board's wide voltage input range specifically supports 12V operation, making it ideal for car audio installations. Ensure your vehicle's electrical system can supply sufficient current for your desired output power, and consider adding a capacitor bank near the amplifier input to stabilize voltage during high-power transients.

What speaker impedance should I use with this amplifier?

The TPA3116D2 is optimized for 4 Ohm speaker loads, which provides maximum power output and stability. You can use 8 Ohm speakers, though output power will be reduced to approximately 50W per channel. Avoid impedances below 4 Ohms as this may trigger protection circuits. For subwoofer applications, 4 Ohm single drivers or dual 8 Ohm drivers wired in parallel are recommended configurations.

Does the board require external cooling or heat sink?

The TPA3116D2 Class D amplifier generates minimal heat compared to analog amplifiers, but sustained high-power operation may require passive cooling. The board typically includes a small heat sink area, but for continuous operation above 80% power output, consider mounting it on an aluminum plate or adding a small fan for active cooling. Ensure adequate ventilation around the board to prevent thermal shutdown.

What is the input signal level required for this amplifier?

The TPA3116D2 accepts standard line-level audio signals with input impedance of 10kOhms. Typical audio sources like smartphones, tablets, and audio interfaces output signals in the 0.5-2V RMS range, which the board's adjustable gain controls can accommodate. Use the onboard potentiometers to match your specific audio source level to prevent clipping or insufficient volume.

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.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy Digital Sub woofer Power Amplifier Board TPA3116D2 DC 12-24 V, 3 Channel Online in India

Purchase the Digital Sub woofer Power Amplifier Board TPA3116D2 DC 12-24 V, 3 Channel online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Digital Sub woofer Power Amplifier Board TPA3116D2 DC 12-24 V, 3 Channel with fast shipping and expert support.

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