--- product_id: 488964194 title: "ZK‑502L Bluetooth Power Amplifier Board 5.0 Stereo Audio Receiver Channels Digital Audio Amplifier Module for DIY Speakers 5-24V" brand: "walfront" price: "€ 29.24" currency: EUR in_stock: true category: "Walfront" url: https://www.desertcart.pt/products/488964194-zk-502l-bluetooth-power-amplifier-board-5-0-stereo-audio store_origin: PT region: Portugal --- # Bluetooth 5.0 stereo connectivity 50W max output power 5-24V wide voltage range ZK‑502L Bluetooth Power Amplifier Board 5.0 Stereo Audio Receiver Channels Digital Audio Amplifier Module for DIY Speakers 5-24V **Brand:** walfront **Price:** € 29.24 **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your sound game with the ZK-502L – where DIY meets pro-grade audio! ## Quick Answers - **What is this?** ZK‑502L Bluetooth Power Amplifier Board 5.0 Stereo Audio Receiver Channels Digital Audio Amplifier Module for DIY Speakers 5-24V by walfront - **How much does it cost?** € 29.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/488964194-zk-502l-bluetooth-power-amplifier-board-5-0-stereo-audio) ## Best For - walfront enthusiasts ## Why This Product - Trusted walfront brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerful Stereo Output:** Delivers crisp, room-filling sound with up to 50W per channel for your DIY speaker projects. - • **Seamless Bluetooth 5.0:** Experience lag-free, high-fidelity wireless audio streaming with the latest Bluetooth technology. - • **Robust Protection System:** Built-in safeguards against overvoltage, overheating, and short circuits ensure reliable, long-lasting performance. - • **Intuitive Control Interface:** Knob potentiometer design offers effortless power and volume adjustments, perfect for hands-on customization. - • **Universal Voltage Compatibility:** Operates smoothly across 5-24V, fitting a variety of power sources from laptops to car adapters. ## Overview The ZK-502L Bluetooth Power Amplifier Board is a versatile 2-channel digital amplifier module supporting up to 50W output per channel. Compatible with 4-8Ω speakers and powered by a wide 5-24V range, it features Bluetooth 5.0 for seamless wireless audio input alongside AUX support. Its acrylic protective shell and advanced safety features protect against electrical faults and overheating, making it ideal for DIY speaker builds, car audio upgrades, and custom amplifier projects. ## Description Buy ZK‑502L Bluetooth Power Amplifier Board 5.0 Stereo Audio Receiver Channels Digital Audio Amplifier Module for DIY Speakers 5-24V: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Strong Compatibility: The amplifier module is equipped with a terminal block and a DC 2.1mm socket, which is compatible with most laptop power ports. Can directly connect to Bluetooth 5.0. and compatible with a variety of speakers. Two 20W, 30W or 50W power amplifier boards are equipped with various speakers (4 to 8 Ω), and support Bluetooth stereo audio input and AUX audio input. - Built-in Filter Capacitor: The built in filter capacitor of this digital power amplifier module makes it available for processing sound . Knob potentiometer design, convenient to adjust power ON and OFF, V+ and V‑. - Adapted Power Supply Voltage: 5-24V (optional 9V/12V/15V18V/24V and Other Adapters, High Power Recommended High Voltage). To Noise Ratio: >90 dB. Adapted Speakers: 30W-200 W, 4Ω-8Ω. - Mechanism: Adopt acrylic protective shell design, with reverse connection , overvoltage , undervoltage , over temperature , short circuit . Self recovery overheating . - Wide Range Of Applications: This bluetooth speaker power amplifier board has no sound when powering on, skipping songs and pausing. It is widely used in refitting speakers, power amplifier equipment, and car Bluetooth equipment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09J9338KS | | Best Sellers Rank | #82,134 in Electronics ( See Top 100 in Electronics ) #523 in Audio Component Amplifiers | | Brand Name | Walfront | | Customer Reviews | 4.3 4.3 out of 5 stars (112) | | Included Components | inc | | Manufacturer | Walfront | | Material Type | Material | | Maximum Output Power | 50 watts | | Maximum Supply Voltage | 24 volts_of_direct_current | | Minimum Supply Voltage | 5 volts_of_direct_current | | Model | ZK 502L | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Number of Items | 1 | | Package Type Name | box | | Part Number | Walfront1c0mu4qvrb6020 | | Specification Met | Noise Level Specification Met | | Voltage | 24 volts | ## Product Details - **Manufacturer:** Walfront - **Maximum Supply Voltage:** 24 volts_of_direct_current - **Minimum Supply Voltage:** 5 volts_of_direct_current - **Mounting Type:** Surface Mount - **Voltage:** 24 volts ## Images ![ZK‑502L Bluetooth Power Amplifier Board 5.0 Stereo Audio Receiver Channels Digital Audio Amplifier Module for DIY Speakers 5-24V - Image 1](https://m.media-amazon.com/images/I/61WASAInQQL.jpg) ## Frequently Bought Together - ZK‑502L Bluetooth Power Amplifier Board 5.0 Stereo Audio Receiver Channels Digital Audio Amplifier Module for DIY Speakers 5-24V - DC15V Power Supply AC Adapter Charger 15V Power Cord AC to DC15Volt 3A 2.5A 2A 1500mA 1000mA 500mA Regulated Switching Power Adapter with 11 Plug Tips for Massage Gun Monitor Display (DC15V~3A) - BLUECELL 1 Pair 3-Inch Double Binding Round Gold Plate Push Spring Loaded Jacks Speaker Box Terminal Cup --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/488964194-zk-502l-bluetooth-power-amplifier-board-5-0-stereo-audio](https://www.desertcart.pt/products/488964194-zk-502l-bluetooth-power-amplifier-board-5-0-stereo-audio) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-11-12*