ZK-AS21P 2.1 Channel Bluetooth Amplifier Board, 300W x2 Stereo Class D Home Audio Amp with 600W Subwoofer Output, 2 x TPA3255 Chip, AUX USB Input and Wired Knob Control for DIY Speakers
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ZK-AS21P 2.1 Channel Bluetooth Amplifier Board, 300W x2 Stereo Class D Home Audio Amp with 600W Subwoofer Output, 2 x TPA3255 Chip, AUX USB Input and Wired Knob Control for DIY Speakers
Powerful 2.1 Channel Output – Provides 300W+300W stereo channels and 600W subwoofer channel, delivering strong bass and clear treble, ideal for DIY speaker systems and home theater setups.
ZK-AS21P 2.1 Channel Bluetooth Amplifier Board, 300W x2 Stereo Class D Home Audio Amp with 600W Subwoofer Output, 2 x TPA3255 Chip, AUX USB Input and Wired Knob Control for DIY Speakers
物品 #: 177675577

ZK-AS21P 2.1 Channel Bluetooth Amplifier Board, 300W x2 Stereo Class D Home Audio Amp with 600W Subwoofer Output, 2 x TPA3255 Chip, AUX USB Input and

物品 #: 177675577

HKD 850

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from 美國

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現在訂購，約可在下列時間收貨： Monday, 八月 03
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Powerful 2.1 Channel Output – Provides 300W+300W stereo channels and 600W subwoofer channel, delivering strong bass and clear treble, ideal for DIY speaker systems and home theater setups.
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Note: Step Down Voltage Transformer required for using electronics products of 美國 store (110-120). Recommended power converters 立即購買.

What Stands Out

Powerful Output
Delivers an impressive 300W for each channel, plus a robust 600W for subwoofers, ensuring high-quality audio performance for immersive listening experiences.
Bluetooth Connectivity
Equipped with advanced Bluetooth technology, allowing for convenient wireless streaming from devices, enhancing user experience with easy setup and integration.
Class D Efficiency
Utilizes Class D amplification technology, providing superior energy efficiency, reduced heat, and a compact design without compromising sound quality.

產品詳情

Shop ZK-AS21P 2.1 Channel Bluetooth Amplifier Board, 300W x2 Stereo Class D Home Audio Amp with 600W Subwoofer Output, 2 x TPA3255 Chip, AUX USB Input and Wired Knob Control for DIY Speakers online at a best price in 香港. B0FKT7KK5H
Voltage50 Volts
Maximum Supply Voltage50 Volts
Minimum Supply Voltage18 Volts
Mounting TypeThrough-Hole Mount
Number of Channels3
Output Power300 Watts
Package Type NameBoard Mount
Supply Current36 Amps
Maximum Output Power600
Material TypePCB, Aluminum, Electronic Components
ManufacturerBeffkkip
ModelAMP-AS21PYX
Brand NameBeffkkip
Unit Count1.0 Count
UPC764269215673
Included ComponentsZK-AS21P Amplifier Board, Wired Knob Cables
Part NumberZK-AS21P
Country of OriginThis item will be imported from US
Item Weight2 lbs (910 grams)
Date First AvailableAugust 15, 2025

Who Should Buy?

Suitable For
  • Home Audio Enthusiasts

    Ideal for users seeking high-quality audio for home theater setups, delivering powerful sound with subwoofers and speakers.

  • DIY Audio Projects

    Perfect for hobbyists wishing to build custom audio systems, thanks to its modular design and wiring options.

  • Portable Systems

    Great for users needing Bluetooth functionality for portable speakers, allowing flexible connectivity with various devices.

Not Suitable For
  • Casual Listeners

    Not suitable for those who only listen to music occasionally and prefer simple plug-and-play solutions.

產品敘述

ZK-AS21P 2.1 Channel Bluetooth Amplifier Board, 300W x2 Stereo Class D Home Audio Amp with 600W Subwoofer Output, 2 x TPA3255 Chip, AUX USB Input and Wired Knob Control for DIY Speakers

有疑問？ 與我們聊天

客戶問題＆回答

  • 題: What is the power output of the ZK-AS21P amplifier?

    回答: The ZK-AS21P amplifier delivers a powerful output of 300W for the left channel, 300W for the right channel, and 600W dedicated for the subwoofer. This makes it an excellent choice for enhancing your audio experience, whether you are watching movies, listening to music, or gaming. The high output capacity ensures that you receive a rich and clear sound that can fill large spaces, creating an immersive atmosphere. Its Class D TPA3255 technology also ensures efficiency and low heat generation, making it reliable for long-term use.
  • 題: Can I connect the ZK-AS21P to my existing stereo system?

    回答: Yes, you can easily integrate the ZK-AS21P amplifier into your existing stereo setup. It features multiple inputs that allow seamless connection to various audio sources such as TVs, laptops, and smartphones. The amplifier is designed to enhance the audio quality of your system, providing deeper bass and clearer treble. This makes it ideal for audiophiles looking to upgrade their sound experience without replacing their entire set-up. Just ensure proper wiring to maximize performance for both stereo and subwoofer outputs.
  • 題: What are the benefits of using a Class D amplifier like the ZK-AS21P?

    回答: Class D amplifiers, such as the ZK-AS21P, are known for their high efficiency and compact design. They convert power more efficiently compared to traditional Class A/B amplifiers, which results in less heat production and energy consumption. This efficiency allows for more compact designs without sacrificing sound quality. Users benefit from powerful audio output and reliable performance, making it great for home theaters or outdoor setups. The lightweight design also simplifies installation and enhances portability, ideal for users who move their audio systems.
  • 題: Is the ZK-AS21P amplifier suitable for outdoor use?

    回答: While the ZK-AS21P can technically be used outdoors, it's essential to protect it from environmental factors such as moisture and dust. If you plan to use it outside, consider housing it in a protective case or placing it under cover. The powerful output makes it suitable for outdoor gatherings where you need high-quality sound to reach a larger audience. It's an excellent choice for parties, barbecues, or outdoor movie nights, as long as it is adequately sheltered from the elements.
  • 題: Does the ZK-AS21P support Bluetooth connectivity?

    回答: Yes, the ZK-AS21P amplifier comes with built-in Bluetooth connectivity, allowing you to stream audio wirelessly from various devices such as smartphones, tablets, and laptops. This feature enhances convenience, letting you enjoy music without the hassle of wired connections. Ideal for modern audio setups, it allows you to connect to multiple devices and switch between them effortlessly. Whether you're hosting a party or creating a cozy atmosphere for a movie night, Bluetooth connectivity simplifies your audio experience.
  • 題: What types of speakers can I use with the ZK-AS21P?

    回答: The ZK-AS21P amplifier is compatible with various speaker types, including passive speakers for stereo channels and a subwoofer for enhanced bass performance. You can pair it with different brands and sizes of speakers as long as they match the amplifier's power output specifications. This compatibility allows for a customizable audio setup tailored to your preferences, making it ideal for home theater systems or music production setups. Just ensure that the speakers used can handle the output power to achieve the best sound quality.
  • 題: How do I set up the ZK-AS21P amplifier?

    回答: Setting up the ZK-AS21P amplifier is straightforward. Start by connecting your audio source using compatible cables. Then, connect your speakers to their respective outputs on the amplifier, ensuring proper polarity. Plug in the power supply and switch on the device. Bluetooth pairing is initiated through your audio source, allowing for seamless wireless audio streaming. This setup process allows you to enjoy high-quality audio within minutes. Whether you are a beginner or an experienced user, the setup process is designed to be user-friendly.
  • 題: What makes the TPA3255 chip significant in this amplifier?

    回答: The TPA3255 chip is known for its exceptional audio quality and efficiency in Class D amplifiers. It offers high fidelity sound while minimizing distortion, resulting in clear audio playback even at high volumes. This technology allows the ZK-AS21P to power large speakers effectively while maintaining sound clarity. Users seeking superior sound reproduction without significant energy loss will find this chip particularly beneficial. It’s best suited for those who appreciate nuanced audio, such as music enthusiasts and home theater aficionados.
  • 題: Can I use the ZK-AS21P for home theater systems?

    回答: Absolutely! The ZK-AS21P amplifier is an outstanding choice for home theater systems. With its robust power output, it can drive both stereo speakers and a subwoofer effectively, delivering an immersive audio experience for movies and games. The 2.1 channel design caters perfectly to surround sound setups, enhancing cinematic experiences with dynamic audio that immerses you in the action. Pair it with your TV and compatible speakers to create a dedicated home theater system that rivals commercial setups.
  • 題: Where can I buy the ZK-AS21P 2.1 Channel Bluetooth Digital Amplifier?

    回答: You can purchase the ZK-AS21P 2.1 Channel Bluetooth Digital Amplifier from Ubuy. Ubuy offers a user-friendly platform with a reliable shopping experience, allowing you to buy this amplifier and have it delivered to your doorstep. It's a great choice for those looking for convenience and dependability while shopping online in Hong Kong.

Beffkkip Receivers Editorial Review

The ZK-AS21P 2.1 Channel Bluetooth Digital Amplifier Board has garnered positive feedback from customers who have tested its capabilities in various audio setups. Users appreciate its clean sound output and the impressive performance of the TPA3255 chip, which delivers robust audio even at higher volumes. The amplifier's ability to handle both stereo speakers and a subwoofer has been noted favorably, with many reviewers commenting on the strong bass response and clarity in the high frequencies. Setup and installation are reportedly straightforward, allowing users to easily integrate the board into their existing systems or DIY audio projects. The Bluetooth functionality also earns praise, with customers highlighting its reliability and stability, even at Considerable distances from the source device. Moreover, the board operates efficiently, staying only slightly warm even after extended use, which reflects positively on its thermal management. Overall, the ZK-AS21P amplifier board stands out for its performance and audio quality, making it a valuable choice for users looking to enhance their audio experiences without delving into overly complicated or expensive setups. **

Customer Reviews & Ratings

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優點

  • Clean sound output, even at high volumes
  • Strong bass response from the sub channel
  • Easy setup with simple wiring
  • Stable Bluetooth connectivity with good range
  • Efficient thermal management, staying cool during operation
  • Great value for sound quality

Platform Trust & Buyer Confidence

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3.8/5 96 reviews
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F Zhang
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“Good product, and smooth delivery!”

18-Jul-26 · via Trustpilot
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Roxy
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“Great products and services”

17 April 2026 · via Trustpilot
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“Ubuy Hong Kong is a game-changer. I was looking for a specific American brand that doesn't ship to Asia, and Ubuy had it in stock. The selection of global products is incredible. It saves me the hassle of using freight forwarders or asking friends to bring items over. The process was seamless from checkout to delivery”

6 July 2026 · via Trustpilot
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kritika
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“I?m always nervous buying electronics and skincare online, but Ubuy Hong Kong delivered exactly what I ordered and it was 100% genuine. It?s refreshing to find a platform that you can actually trust with premium brands. Will definitely be a returning customer.”

3 July 2026 · via Trustpilot
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Sam
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“Great product, good packing, the goods arrived quickly and well protected.”

6 June 2026 · via Trustpilot
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HKD 850

現在訂購，約可在下列時間收貨： Monday, 八月 03

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特色和優勢

  • Delivers 300W+300W stereo channels for powerful sound.
  • 600W subwoofer channel enhances bass performance.
  • Bluetooth 5.0 ensures stable, low-latency audio streaming.
  • High-Efficiency Class D chip reduces heat and distortion.
  • Detachable connectors for easy integration into custom setups.
  • Supports upgrades like subwoofers and microphone preamps.

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