- Home Page /
- Electronics /
- Home Audio /
- Home Theater /
- Receivers & Amplifiers /
- Amplifiers /
- ZK-TB21 High Power Amplifier Board 2.1 Channe...
0 ratings
Item #:
44982506
ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board
85% of respondents would recommend this to a friend
Item #:
44982506
GHS 512
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Monday, September 28
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
ZK-TB21 is a reliable and durable power amplifier board that has strong AM interference suppression function and protection mechanisms.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Power Output
Delivers robust sound with a superior output, enhancing audio clarity and immersion, perfect for home theaters or outdoor parties.
Bluetooth Connectivity
Seamlessly connects with various devices via Bluetooth, providing wireless freedom and compatibility for modern smart gadgets.
2.1 Channel Output
Offers a richer audio experience with enhanced bass through dedicated subwoofer support, transforming everyday listening into a full-spectrum sound experience.
Product Details
| Voltage | 24 volts |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 100 watts |
| Package Type Name | Anti-static bag or small box |
| Supply Current | 15.63 A |
| Specification Met | FCC |
| Manufacturer | Walfront |
| Model | TB21 |
| Brand Name | Walfront |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Part Number | TB21 |
| Brand | Walfront |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
-
DIY Audio Enthusiasts
Perfect for individuals building custom audio systems who seek high-quality sound and Bluetooth connectivity.
-
Small Space Users
Ideal for users with limited space requiring a compact yet powerful amplifier for enhancing audio experiences.
-
Budget-Conscious Buyers
A cost-effective solution for users needing a decent audio setup without breaking the bank.
-
High Power Demands
Unsuitable for professional audio setups that require extensive power beyond the amplifier's specifications.
Product Description
ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the output power of the ZK-TB21 High Power Amplifier Board?
Answer: The ZK-TB21 High Power Amplifier Board is designed to deliver impressive sound performance with a high output power. It typically provides a total output of up to 50W+20W+20W, catering to both stereo and subwoofer channels. This makes it an ideal choice for enhancing audio quality in various setups, whether for home theater systems or DIY audio projects. It allows users to enjoy rich sound with dynamic range, making movie nights or music listening sessions truly immersive. -
Question:
How does Bluetooth connectivity work with the ZK-TB21 amplifier?
Answer: The ZK-TB21 amplifier integrates Bluetooth technology, allowing you to wirelessly connect your smartphone, tablet, or computer for seamless audio streaming. To use this feature, simply pair your device with the amplifier via Bluetooth. Once connected, you can control playback from your device, making it convenient for users who prefer wireless operations without compromising on sound quality. This capability is especially useful for outdoor gatherings or when you want to keep the audio setup uncluttered. -
Question:
Is the ZK-TB21 compatible with all types of speakers?
Answer: Yes, the ZK-TB21 amplifier board is compatible with a wide range of passive speakers, making it flexible for various audio setups. It works well with standard 4 to 8-ohm speakers, allowing users to connect multiple speaker types without issues. This makes it suitable for enhancing sound in home theater systems, garage music setups, or custom audio projects where different speaker configurations are desired. -
Question:
Can I use the ZK-TB21 amplifier for outdoor speakers?
Answer: Absolutely! The ZK-TB21 amplifier board can power outdoor speakers effectively, delivering rich sound for any outdoor event. Its Bluetooth functionality means you can play your favorite playlists from a distance while enjoying clear audio quality. This setup is perfect for barbecues, garden parties, or simply enjoying music in your backyard without the hassle of wires. -
Question:
What features make the ZK-TB21 a good choice for DIY audio projects?
Answer: The ZK-TB21 amplifier board is packed with features that make it ideal for DIY audio enthusiasts. It offers a compact design, high power output, and built-in Bluetooth capability, which simplify integration into custom projects. Its versatility allows you to create personalized audio solutions, whether you’re assembling a custom sound system for your home or building a portable speaker. The ease of connection and control makes it a favorite for hobbyists looking to design their own sound systems. -
Question:
Does the ZK-TB21 amplifier require any special installation?
Answer: No, the ZK-TB21 amplifier board is designed for straightforward installation. It typically comes with clear connection points for speakers and power supply, making it accessible for both beginners and experienced users. You can easily wire it to standard speakers, making it perfect for quick setups. Whether you are integrating it into an existing sound system or building a new one, its user-friendly design allows for hassle-free installation. -
Question:
What is the size of the ZK-TB21 amplifier board?
Answer: The ZK-TB21 amplifier board is compact and lightweight, measuring approximately 4.25 x 3.6 inches. This size is perfect for projects where space is limited, such as portable speaker builds or compact home theater systems. Its design facilitates easy integration into various enclosures, allowing users to create stylish and functional audio solutions without taking up much room. -
Question:
Can the ZK-TB21 be powered by a battery, or does it require mains power?
Answer: The ZK-TB21 amplifier board typically operates on low voltage DC power, making it versatile for battery or mains power sources. For portable applications, you can use a battery power solution to deploy it for outdoor or mobile use. Conversely, if you're setting it up in a fixed location, connecting it to a mains power supply is straightforward, allowing for convenience and flexibility based on your audio setup needs. -
Question:
What type of audio sources can I connect to the ZK-TB21?
Answer: You can connect a variety of audio sources to the ZK-TB21 amplifier board. It supports Bluetooth connectivity for wireless streaming, and also features standard audio input options like AUX or RCA ports. This versatility allows you to link it with smartphones, tablets, computers, or other audio peripherals. It's suitable for home audio setups, ensuring a wide range of compatibility and ease of use for enjoying your favorite music or audio content. -
Question:
Where can I buy the ZK-TB21 High Power Amplifier Board in Ghana?
Answer: You can purchase the ZK-TB21 High Power Amplifier Board from Ubuy in Ghana. Ubuy offers a user-friendly platform to browse, compare, and order this amplifier board conveniently. Their selection typically includes various tech products, ensuring you find the exact item you need with competitive service and options for delivery.
Walfront Amplifiers Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
0%
-
4 Star
100%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
GHS 512
Order now and get it around Monday, September 28
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Bluetooth version: 5.0 with range up to 10m
- Input methods: AUX+Bluetooth
- Number of channels: 2.1 with TPA3116D2 power amplifier chip
- Output power: left and right channels with subwoofer output
- Adapter power supply: DC 12-24V/5A or more for 20-100W, 4-8Ω speakers
- Protection mechanism includes short circuit, undervoltage, overheating, overvoltage and DC detection.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.