irfora
0 ratings
ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board Module High And Low Tone Subwoofer Power Amplifier Board 220W*2+350W
genuine image
ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board Module High And Low Tone Subwoofer Power Amplifier Board 220W*2+350W
Compact in size but powerful in function, delivering fine sound quality and smooth connection without lagging.
ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board Module High And Low Tone Subwoofer Power Amplifier Board 220W*2+350W
Item #: 133068296

ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board Module High And Low Tone Subwoofer Power Amplifier Board 220W*2+350W

Item #: 133068296
0 ratings Write a review
Out of stock
us Imported from USA store
Secured transactionsecured 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
  • fedex
  • dhl
Compact in size but powerful in function, delivering fine sound quality and smooth connection without lagging.
Search for similar products
U-Care Warranty:
None
Select a Plan
buy now pay later

Buy Now Pay Later

fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
klarna payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Powerful Output
Delivers an impressive 220W*2 plus 350W for subwoofer output, ensuring immersive sound experience suitable for home theaters and music enthusiasts.
Bluetooth Connectivity
Easily connects to devices via Bluetooth, allowing seamless streaming of audio without the hassle of cables, perfect for modern audio setups.
Compact Design
Space-saving module design makes it easy to integrate into various setups, ideal for users needing powerful sound in limited spaces.

Product Details

Shop ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board Module High And Low Tone Subwoofer Power Amplifier Board 220W*2+350W online at a best price in Ireland. B0DDTBBKHW
Item Weight2.25 lbs (1.02 kg)

Who Should Buy?

Suitable For
  • Audio Enthusiasts

    Perfect for users who appreciate high-quality sound and require efficient amplification for their audio systems.

  • DIY Audio Projects

    Ideal for hobbyists building their own audio systems or home theaters needing a compact and powerful amplifier.

  • Compact Spaces

    Designed for users with limited space who want a powerful amplifier without sacrificing quality or functionality.

Not Suitable For
  • Casual Listeners

    Not suitable for average users who require basic sound amplification without advanced features and power.

  • Budget Seekers

    May not be the best option for those looking for an affordable amplifier without high-end specs and features.

  • High-Powered Systems

    Not ideal for users with very high power demands that exceed the capabilities of this 220W and 350W amplifier.

Product Description

ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board Module High And Low Tone Subwoofer Power Amplifier Board 220W*2+350W

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the power output of the ZK-AS21 amplifier module?

    Answer: The ZK-AS21 Compact 2.1 Channel TPA3255 amplifier module has a power output of 220W per channel for the two main channels and delivers 350W for the subwoofer channel. This high power output allows for strong audio performance, making it ideal for both home theater setups and DIY audio projects. Whether you're looking to enhance your movie nights or create an immersive music experience, the robust output ensures deep bass and clear highs, elevating the overall sound experience in any setting.
  • Question: How does the Bluetooth functionality work with the ZK-AS21?

    Answer: The ZK-AS21 features built-in Bluetooth technology, allowing you to wirelessly connect your compatible devices like smartphones, tablets, or laptops. This enables easy streaming of music without the need for cumbersome cables. The Bluetooth connectivity is perfect for users who enjoy convenience and flexibility in their audio setups, making it ideal for outdoor gatherings, home parties, or just lounging in your living room while controlling your music remotely.
  • Question: Can the ZK-AS21 amplifier board be used with external subwoofers?

    Answer: Yes, the ZK-AS21 amplifier board is designed to work seamlessly with both powered and passive external subwoofers. With a powerful output of 350W dedicated to the subwoofer channel, you can easily connect a separate subwoofer to enhance the low-frequency sounds in your audio system. This feature is particularly beneficial for home theater enthusiasts who want to experience fuller bass tones, creating a more dynamic auditory experience while watching movies or listening to music.
  • Question: Is the ZK-AS21 amplifier suitable for small rooms?

    Answer: Absolutely, the ZK-AS21 amplifier is compact and powerful, making it suitable for small to medium-sized rooms. Its high output ensures that you can fill the space with quality sound without needing overly loud volumes. This makes it perfect for personal leisure spaces like bedrooms, dorm rooms, or small living areas, ensuring you enjoy rich audio performances without overwhelming noise levels.
  • Question: What type of speakers are compatible with the ZK-AS21?

    Answer: The ZK-AS21 amplifier board is compatible with a wide range of speaker types, including bookshelf, floor-standing, and even custom-built speakers. It can effectively drive speakers that handle high power, complementing various audio setups. This versatility ensures that whether you have a high-end speaker system or a modest setup, the ZK-AS21 will adapt well and deliver impressive sound quality across different speaker brands.
  • Question: What are the dimensions of the ZK-AS21 amplifier module?

    Answer: The ZK-AS21 amplifier module is designed with a compact form factor, typically measuring around 6.3 x 4.1 inches. This size makes it easy to integrate into different audio setups without taking up too much space. Its compact nature also allows for easy installation in DIY projects or tight fitting audio spaces, ensuring you can enjoy powerful amplification without sacrificing room aesthetics.
  • Question: Can beginners use the ZK-AS21 amplifier easily?

    Answer: Yes, beginners can easily use the ZK-AS21 amplifier module due to its straightforward design and user-friendly features. Basic connections include standard speaker terminals and power connections, making installation accessible even for those new to audio equipment. Additionally, the module includes a simplified setup process, allowing users to focus on enjoying high-quality sound rather than struggling with complex configurations.
  • Question: What materials are used in the construction of the ZK-AS21?

    Answer: The ZK-AS21 amplifier is typically constructed using high-quality components that enhance durability and audio performance. It features a robust circuit board design to minimize interference and ensure optimal sound quality. These materials contribute to the amplifier's reliability and longevity, making it an excellent choice for both casual listeners and audio enthusiasts seeking consistent performance in demanding environments.
  • Question: How do I adjust the tone settings on the ZK-AS21?

    Answer: The ZK-AS21 amplifier module includes built-in tone control features, allowing users to adjust bass and treble settings easily. By using the onboard controls, you can enhance your listening experience according to personal preferences or specific genres of music. This flexibility is ideal for audiophiles who enjoy customizing their sound output, enabling a tailored audio experience whether for movies or music.
  • Question: Where can I buy the ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board?

    Answer: You can purchase the ZK-AS21 Compact 2.1Channel TPA3255 BT Digital Power Amplifier Board Module at Ubuy. Ubuy offers a wide selection of electronics and is known for providing reliable service, ensuring you receive your products promptly. This makes Ubuy a great choice for securing this powerful amplifier, allowing you to enhance your audio system efficiently.

irfora Amplifiers Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0
1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4.3/5 9,000 + reviews
Read reviews
MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer

“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
LM
Leila
Verified buyer

“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

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.

Currently unavailable.

We don't know when or if this item will be back in stock.

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Compact and powerful amplifier board module.
  • Delivers fine sound quality with no lag.
  • Supports Bluetooth 5.1 with a connection range of 10 meters.
  • Output power up to 350W for subwoofer and 220W for left and right channels.
  • Easy PlugAndPlay connection to mobile devices, computers, and TVs.
  • Built-in protections against reverse connection, undervoltage, overheating, and short circuits.

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.