--- product_id: 540778617 title: "Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board" brand: "wangcl" price: "Rp650150" currency: IDR in_stock: true reviews_count: 10 category: "Wangcl" url: https://www.desertcart.id/products/540778617-audio-amplifier-module-zk-mt21-2-1-channel-bluetooth-digital store_origin: ID region: Indonesia --- # 200W max output power Wide 12-24V operating voltage Multi-layer protection system Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board **Brand:** wangcl **Price:** Rp650150 **Availability:** ✅ In Stock ## Summary > 🔊 Elevate your sound game with power, precision, and protection! ## Quick Answers - **What is this?** Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board by wangcl - **How much does it cost?** Rp650150 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/540778617-audio-amplifier-module-zk-mt21-2-1-channel-bluetooth-digital) ## Best For - wangcl enthusiasts ## Why This Product - Trusted wangcl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Copper DC connectors and fence terminals ensure high current tolerance with zero heat damage. - • **Fail-Safe Protection:** Advanced safeguards against overheating, reverse polarity, and voltage fluctuations keep your gear safe. - • **Powerhouse Performance:** Delivers a robust 2x50W + 100W output for immersive sound that fills any space. - • **Smart Voltage Flexibility:** Operates seamlessly between 12-24V, adapting to your setup with ease and efficiency. - • **Interference-Free Listening:** Equipped with a dedicated antenna and base for crystal-clear Bluetooth 5.0 wireless audio. ## Overview The WANGCL ZK-MT21 is a compact 2.1 channel Bluetooth 5.0 digital amplifier module delivering up to 200W total power. Designed for versatile use in home theaters, stores, and speaker systems, it features wide voltage compatibility (12-24V), robust copper connectors, and comprehensive protection against electrical faults. Its integrated antenna ensures strong, interference-resistant wireless connectivity, making it a reliable upgrade for audiophiles and DIY enthusiasts alike. ## Description Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board Product Description: This amp board has overheat, reverse, circuit, over-voltage and under-voltage protection to prevent complete failure. This can be mini amplifier board widely used in store solicitation, home theater, square speakers, etc.due to its excellent performance. Adopts copper DC connector and fence type terminal, which can withstand large current, no heat, no damage to the wire. Audio power amplifier with antenna and antenna base, the signal is better, the efficiency is high, and the anti-interference ability is strong. The wireless 5.0 digital amplifier board is operated by wide working voltage 12-24V, max output power 2X50W+100W. Specification: Color: As Pic Shown Size: 9.4x9x2.2 cm/3.70x3.54x0.87 inch Model: ZK-MT21 Wireless Version: 5.0 Audio Input: AUX + Wireless Channel: 2.1 Input sensitivity: 500mV Adaption Supply Voltage: 12-24V / 5A above Speaker: 20-100W, 4-8Ohm Packing List: 1 * Audio amplifier module (not assembled) Review: Real Deal | Great Sound and Easy to DIY. - I modified an old Logitech computer speaker and paired with Xiaomi TV Box and it sound amazing. I just don't really know how long it will last. But as far as the sound is concern, this is real. Review: Good product - Good product ## Features - This amp board has overheat, reverse, circuit, over-voltage and under-voltage protection to prevent complete failure. - This can be mini amplifier board widely used in store solicitation, home theater, square speakers, etc.due to its excellent performance. - Adopts copper DC connector and fence type terminal, which can withstand large current, no heat, no damage to the wire. - Audio power amplifier with antenna and antenna base, the signal is better, the efficiency is high, and the anti-interference ability is strong. - The wireless 5.0 digital amplifier board is operated by wide working voltage 12-24V, max output power 2X50W+100W. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09SL33VYD | | Brand | WANGCL | | Brand Name | WANGCL | | Customer Reviews | 4.2 out of 5 stars 611 Reviews | | Manufacturer | WANGCL | | Material Type | Copper | | Maximum Supply Voltage | 24 Volts | | Maximum supply voltage | 24 Volts | | Minimum Supply Voltage | 12 Volts (DC) | | Minimum supply voltage | 12 Volts (DC) | | Model | ZK-MT21 | | Mounting Type | Surface Mount | | Mounting type | Surface Mount | | Number of Channels | 2 | | Output Power | 200 Watts | | Package Type Name | shipping box | | Part Number | AUZ22917 | | Specification Met | CE | | Supply Current | 5 Amps | | UPC | 610012476986 | | Voltage | 24 Volts | ## Product Details - **Manufacturer:** WANGCL - **Maximum supply voltage:** 24 Volts - **Minimum supply voltage:** 12 Volts (DC) - **Mounting type:** Surface Mount - **Voltage:** 24 Volts ## Images ![Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board - Image 1](https://m.media-amazon.com/images/I/51aLfHDx9eL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Real Deal | Great Sound and Easy to DIY. *by F***L on 21 February 2025* I modified an old Logitech computer speaker and paired with Xiaomi TV Box and it sound amazing. I just don't really know how long it will last. But as far as the sound is concern, this is real. ### ⭐⭐⭐⭐ Good product *by S***A on 13 March 2026* Good product ### ⭐ Fake wattage ratings *by A***S on 20 March 2025* The chip advertises 2x50W and a 100W sub output at 4-8ohms but only outputs around 10W at 4ohms powered with 24v DC on the subwoofer output which is much lower than the advertised 100W. The 2x50W channels also have no bass and lower output at around 4W/channel. The Bluetooth is very laggy and pops often. The ic inside is a CS8673E which can barely output 20W at 4ohms with 10% distortion which is very high. Product not as advertised. ## Frequently Bought Together - WANGCL Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board - electrosmart 10m Red/Black 2x 1mm 2x 89 Strand Speaker Cable Wire for Home HiFi/Car Audio etc - 24V 6A DC Power Supply Adapter AC 100V~240V to DC 24 Volt 6 Amp 144W Converter Transformer 5.5x2.1mm Plug for LED Strip Light 3D Printer LED Driver LCD Monitor,Wireless Router,Security Cameras --- ## 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.id/products/540778617-audio-amplifier-module-zk-mt21-2-1-channel-bluetooth-digital](https://www.desertcart.id/products/540778617-audio-amplifier-module-zk-mt21-2-1-channel-bluetooth-digital) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-07-06*