--- product_id: 524733121 title: "Walfront ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board" brand: "walfront" price: "€ 29.38" currency: EUR in_stock: true reviews_count: 8 category: "Walfront" url: https://www.desertcart.pt/products/524733121-walfront-zk-tb21-high-power-amplifier-board-2-1-channel store_origin: PT region: Portugal --- # 100W max output power 12-24V wide voltage range Multi-layer protection system Walfront ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board **Brand:** walfront **Price:** € 29.38 **Availability:** ✅ In Stock ## Summary > 🎶 Amplify your sound, elevate your space — don’t just listen, experience it! ## Quick Answers - **What is this?** Walfront ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board by walfront - **How much does it cost?** € 29.38 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/524733121-walfront-zk-tb21-high-power-amplifier-board-2-1-channel) ## 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 - • **Compact & Durable Design:** Small footprint with premium materials ensures long-lasting performance and easy installation anywhere. - • **Advanced Safety Mechanisms:** Stay worry-free with integrated overvoltage, undervoltage, overheating, DC detection, and short circuit protections. - • **Powerful 2.1 Channel Output:** Experience immersive sound with 50W per channel plus dedicated subwoofer output for deep bass impact. - • **Robust Voltage Compatibility:** Operates efficiently across 12V to 24V DC, perfect for diverse setups and power sources. - • **Crystal-Clear Bluetooth Audio:** Seamlessly stream your favorite playlists with built-in Bluetooth and AUX inputs for versatile connectivity. ## Overview The Walfront ZK-TB21 is a high-power 2.1 channel Bluetooth digital amplifier board delivering up to 100W output with versatile Bluetooth and AUX inputs. Designed for professional-grade audio setups, it supports a wide 12-24V DC voltage range and features comprehensive protection against electrical faults. Its compact, durable build ensures reliable, low-noise performance, making it an essential upgrade for audiophiles and tech-savvy millennials seeking premium sound with hassle-free connectivity. ## Description Buy Walfront ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. Review: Best amplifier kit - I am happy 😊 these are the best items onbthis platform... really appreciate to the dealrs who are selling such nice products on desertcart. 👏🏻 Review: Low noise , no heat clear sounds . - I love this product . Only problem is mount in amplifier case . ## Features - 【Bluetooth function】With AUX + for Bluetooth audio input, subwoofer + left and right channel output. - 【AM interference】The power amplifier chip has AM interference suppression function. - 【 mechanism】The mechanism includes overvoltage, undervoltage, overheating, DC detection, and short circuit , which is relatively . - 【strong and 】Using materials, strong and , has a long service life. - 【convenient to use】With small size, easy to carry and store, convenient to use and with good performance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08GZBJWFZ | | Best Sellers Rank | #15,306 in Electronics ( See Top 100 in Electronics ) #31 in Home Audio Amplifiers | | Brand | Walfront | | Brand Name | Walfront | | Country Of Origin | China | | Customer Reviews | 4.1 out of 5 stars 119 Reviews | | Included Components | inc | | Manufacturer | Walfront | | Material Type | Material | | Maximum Output Power | 100W | | Maximum Supply Voltage | 24 Volts (DC) | | Maximum supply voltage | 24 Volts (DC) | | Minimum Supply Voltage | 12 Volts (DC) | | Minimum supply voltage | 12 Volts (DC) | | Model | TB21 | | Mounting Type | Surface Mount | | Mounting type | Surface Mount | | Number of Channels | 2 | | Number of Items | 2 | | Number of Packs | 2 | | Output Power | 50 Watts | | Package Type Name | Box" (meaning 'Box' in Spanish) | | Part Number | TB21 | | Specification Met | FCC | | Supply Current | 5 Amps | | Voltage | 24 Volts | ## Product Details - **Manufacturer:** Walfront - **Maximum supply voltage:** 24 Volts (DC) - **Minimum supply voltage:** 12 Volts (DC) - **Mounting type:** Surface Mount - **Voltage:** 24 Volts ## Images ![Walfront ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board - Image 1](https://m.media-amazon.com/images/I/710OCG7UqjL.jpg) ## Questions & Answers **Q: Does is comes with a power supply? what's the recommended one?** A: Hello, without power supply Applicable power adapter 5V 1A ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best amplifier kit *by J***D on 28 March 2026* I am happy 😊 these are the best items onbthis platform... really appreciate to the dealrs who are selling such nice products on Amazon. 👏🏻 ### ⭐⭐⭐⭐⭐ Low noise , no heat clear sounds . *by R***A on 31 August 2024* I love this product . Only problem is mount in amplifier case . ### ⭐⭐⭐⭐⭐ Great product *by M***A on 20 May 2024* Amazing thing ## Frequently Bought Together - ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board - 100W+100W Amplifier Board with Treble and Bass Control, DC 9-24V, BT and AUX Inputs, 2.0 Channel Stereo AMP Board for DIY Wireless Speakers, Password Free (ZK-1002T) - Dayton Audio DAEX58FP Flat Pack 58mm Exciter 25W 8 Ohm --- ## 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/524733121-walfront-zk-tb21-high-power-amplifier-board-2-1-channel](https://www.desertcart.pt/products/524733121-walfront-zk-tb21-high-power-amplifier-board-2-1-channel) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-13*