PAM8406 Stereo Digital Audio Amplifier Module with Volume Potentiometers | Pro Tronix
55.00 EGP
| Weight | 0.00 kg |
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Product Description
A high-efficiency 5W+5W dual-channel stereo digital audio amplifier module featuring independent onboard volume potentiometers, ideal for portable speakers and multimedia sound systems in Arduino and microcontroller projects. This compact class-D/class-AB selectable audio hub breaks out the advanced PAM8406 chip, delivering clean, high-fidelity sound reproduction directly into standard 4-ohm or 8-ohm speaker cones without requiring massive external heatsinks. It features two individual multi-turn trimmer potentiometers that allow users to fine-tune the left and right audio gains independently to balance audio channels or match ambient sound requirements. Engineered with comprehensive short-circuit, thermal, and over-current protection circuits, it offers an incredibly power-efficient, low-noise amplification solution for battery-powered or USB-driven custom audio builds.
Pinout / Layout Connections
The module breaks out its audio and power routing paths via labeled through-hole solder pads:
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5V / GND Pads: Connect to a stable +5V DC positive power supply line and common system ground.
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L / G / R Input Pads: Audio signal input terminals for the Left channel, common audio Ground, and Right channel.
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L+ / L- Output Pads: Differential bridged speaker outputs dedicated to the Left audio channel.
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R+ / R- Output Pads: Differential bridged speaker outputs dedicated to the Right audio channel.
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Warning: Do not connect the negative output pads (L- and R-) together or to system ground, as this will damage the amplifier.

Applications
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DIY Portable Bluetooth Speakers: Perfect for building compact handheld soundboxes, custom boomboxes, and wireless media audio nodes.
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Robotics Sound Effects: Excellent for adding voice synthesis circuits, alerts, and high-volume playback modules to interactive automated systems.
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Arcade Machine Retros: Ideal for integrating low-profile stereo sound setups into retro tabletop arcade cabinets and handheld gaming kits.
Compatibility
The PAM8406 amplifier operates within standard low-voltage logic and audio ranges, making it fully compatible with:
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MP3 Decoder Boards & Bluetooth Modules (MH-M18, MH-M28, MH-M38, DFPlayer Mini).
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Arduino Board Series (Uno, Mega, Nano) for amplifying basic tone generation or wave shields.
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Raspberry Pi and ESP32 boards via their native 3.5mm stereo jacks or audio DAC pins.
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Standard 5V USB Power Banks and single-cell LiPo batteries utilizing a 5V boost converter.
Technical Specifications
| Parameter | Value / Specification |
| Standard Part Number | PAM8406 Amplifier Module |
| Operating Voltage | DC 2.5 V to 5.5 V (Recommended 5.0 V) |
| Output Power | 5 W + 5 W Stereo (at 5V supply into $2\ \Omega$ load) / 3 W + 3 W (into $4\ \Omega$ load) |
| Speaker Impedance Compatibility | Supports $2\ \Omega$, $4\ \Omega$, and $8\ \Omega$ speakers |
| Amplifier Architecture | Class-D / Class-AB Alternative Configurable Design |
| Efficiency | Up to 90% in Class-D mode |
| Onboard Controls | Dual independent volume adjustment potentiometers (Left and Right) |
What’s in the Box
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1 x PAM8406 Digital Amplifier Module with Onboard Volume Potentiometers.

Shipping & Delivery Policy
At Protronix, we ensure your orders are delivered safely and efficiently through multiple reliable channels tailored to your needs.
Our Delivery Methods
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Egypt Post: Standard shipping to all governorates across Egypt via the National Postal Authority.
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Uber Scooter: Fast, same-day express delivery for local orders within supported urban areas.
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Store Pickup: You can skip the shipping fees by collecting your order directly from our main branch.




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