ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board

ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 1
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 2
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 3
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 4
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 5
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 6
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 7
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 8
ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board — image 9
84%
85%
Sound Quality
88%
Ease of Installation
90%
Connectivity (Bluetooth)
80%
Durability and Build Quality
87%
Bass and Treble Control
84%
Power Output
91%
Protection Features (Over-voltage, Over-heat)
82%
Size and Portability
92%
Value for Money
75%
Customer Support
86%
Compatibility with Other Devices
65%
Sound Distortion at High Volumes
More

Overview

The ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board offers an excellent solution for enhancing home audio systems with its wireless 2.1-channel output. This compact amplifier provides 50W x 2 and 100W for the subwoofer, delivering dynamic sound suitable for both casual listening and DIY audio setups. Whether you are looking to upgrade your existing speakers or create a custom build, this Bluetooth-enabled amplifier is an ideal choice. Its small form factor makes it easy to integrate into any space, while still providing powerful performance. Overall, it’s a solid option for those seeking flexibility in their audio projects.

Features & Benefits

With Bluetooth 5.0 support, this audio amplifier module provides wireless connectivity for hassle-free streaming from your devices. Its independent bass and treble controls allow for precise sound adjustments, giving you full control over your listening experience. Safety is also a key focus, with built-in protections like over-voltage, short-circuit, and over-heat prevention. In addition to Bluetooth, it offers AUX input support, ensuring versatile connection options. Easy installation is another perk, as the interface is clearly labeled for quick setup, making it accessible even to beginners.

Best For

This Bluetooth amplifier is best suited for DIY enthusiasts looking to build or upgrade their home speaker systems. Its small size and powerful output make it ideal for those seeking a compact, high-performance amplifier that fits into tight spaces. It’s also perfect for users who need both wireless and wired options, making it versatile for a variety of setups. Whether you’re a hobbyist working on a custom audio project or someone who needs an easy-to-install solution for your home theater, this module is a reliable choice.

User Feedback

The ZK-TB21 has garnered positive reviews for its customizable sound and straightforward installation process. Users appreciate how easy it is to integrate into their systems, especially with the clear interface labels. However, some have mentioned occasional sound distortion at higher volumes, especially when pushing the limits of its power output. While this is a minor downside, the durability and safety features, including over-voltage protection, are often praised. Overall, most users find it to be a great value for the price, especially for those focused on quality sound in DIY projects.

#Amplifiers
#Receivers & Amplifiers
#Home Theater
#Home Audio
#Electronics

Pros

  • Bluetooth 5.0 connectivity offers stable wireless streaming from a variety of devices.
  • The compact design makes this audio amplifier module easy to integrate into DIY audio projects.
  • Independent bass and treble controls provide customizable sound to match different preferences.
  • The 50W x 2 + 100W power output is ideal for home speakers in medium-sized rooms.
  • Protection features like over-voltage, over-heat, and short-circuit safeguards enhance the device's durability.
  • Easy installation with labeled interface makes setup straightforward, even for beginners.

Cons

  • Some users report occasional sound distortion when the amplifier is pushed to higher volumes.
  • The device may not be powerful enough for larger, high-demand audio setups.
  • Bluetooth range may be limited in large or complex environments, causing connection issues.
  • The build quality might not withstand long-term use in more demanding or rough environments.
  • While compact, the size may be too small for users looking for more substantial outputs or extra features.
  • Not suitable for those requiring extensive sound customization or advanced audio configurations.

Ratings

The ratings for the ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board are based on a careful analysis of verified user reviews from multiple platforms and languages around the world. After filtering out spam, bot-generated, and exaggerated reviews, the scores reflect both strengths and some recurring pain points. Users highlight the amplifier's performance and ease of integration into various setups, while some concerns about sound distortion at high volumes have also been noted. The feedback spans across diverse regions, ensuring a balanced view of the product’s overall reception.

Sound Quality
85%
Many users appreciate the clear and detailed sound produced by this audio amplifier. The bass and treble controls allow for significant sound customization, making it adaptable to different types of music and environments. Overall, users report a well-rounded listening experience for the price point.
Some users note occasional distortion at higher volumes, which can impact sound clarity. This may be more noticeable with demanding audio setups, especially when pushing the amplifier to its power limits. For certain users, this could be a dealbreaker in more high-performance scenarios.
Ease of Installation
88%
Installation is straightforward thanks to the labeled interface and simple wiring process. Users find that the clear setup instructions make it an excellent choice for DIY audio enthusiasts, even if they don’t have a lot of experience with audio hardware. The compact size also aids in quick integration into smaller or custom setups.
While many users find installation easy, some feel that the instructions could be clearer in a few places. A few buyers also mention that the connection ports are somewhat close together, making it a bit tricky to work with in cramped spaces, especially when installing multiple cables.
Connectivity (Bluetooth)
90%
The Bluetooth 5.0 connectivity works well for wireless streaming, offering fast pairing and a stable connection for most users. This feature makes it very convenient for people who prefer a clutter-free setup, and many have reported reliable streaming without noticeable delays or dropouts.
A small number of users reported intermittent connection drops, particularly when using the amplifier at longer distances from their Bluetooth source. While this is not a widespread issue, it can be frustrating for users who expect flawless wireless performance in larger spaces.
Durability and Build Quality
80%
20%
The overall build quality is solid, and the amplifier feels sturdy and reliable in hand. Users appreciate the protective features like over-voltage and short-circuit protection, which add peace of mind, especially in custom setups. Many feel it will last well over time if properly cared for.
Despite its solid build, a few users have experienced some wear on the external casing over time, with small scratches or marks appearing after regular use. This minor concern about aesthetics doesn't seem to affect performance, but it can be disappointing for those seeking a more premium finish.
Bass and Treble Control
87%
The independent bass and treble controls allow for fine-tuning sound based on personal preferences, which is a major plus for those who want to tailor the audio to specific music genres. Many users find that this feature enhances the listening experience by enabling them to achieve the ideal balance for different setups.
Some users mention that while the bass and treble controls are effective, they can sometimes feel a bit limited in terms of extreme adjustments. In certain configurations, the range may not be enough to fully satisfy users looking for more drastic sound customization options.
Power Output
84%
The power output, offering 50W per channel with a 100W subwoofer, is praised for providing ample volume in most small to medium spaces. Users have reported that it offers enough power for home theater setups and general listening without distortion at moderate levels.
While the power is generally sufficient, some buyers find it lacking when used in larger spaces or with higher-demand speakers. Users with bigger audio setups may find themselves pushing the device too hard to get the volume they desire, which can cause some distortion at higher settings.
Protection Features (Over-voltage, Over-heat)
91%
The built-in over-voltage, over-heat, and short-circuit protection features are highly appreciated for ensuring safe operation, especially in DIY projects. These features offer users peace of mind, knowing the amplifier won’t overheat or suffer damage from electrical issues during use.
Although protection features are generally a positive, some users feel that these safeguards might limit the amplifier's full potential at times. In certain scenarios, users may notice the device cutting power or throttling when pushed hard, which could be a limitation for those seeking maximum performance.
Size and Portability
82%
18%
The compact size of the amplifier makes it ideal for small spaces and portable setups. It’s lightweight and easy to fit into tight spaces, which is great for users working with limited room or those who need something that can easily be moved between different locations.
While the compact design is great for portability, some users note that the smaller size can make the ports a bit too close together, which can be a challenge when connecting multiple cables. It also might not be the best option for those who want to pair it with larger, high-powered speakers.
Value for Money
92%
This amplifier provides excellent value for money, with a range of features typically found in more expensive models. Users have highlighted the affordable price point considering the performance, quality, and safety features. For DIY audio enthusiasts, it's often seen as a top choice in the budget category.
Some buyers feel that, while the price is reasonable, the performance may not be on par with higher-end models, especially in larger or more demanding setups. A few users think it lacks some advanced features found in pricier alternatives, though they acknowledge the value for the price.
Customer Support
75%
25%
Some users have reported that customer support is responsive and helpful, especially when dealing with issues related to setup and installation. The manufacturer's team seems eager to assist with troubleshooting and offer guidance where needed.
However, not all users have had a positive experience with customer support. Some buyers report delayed responses and difficulty getting timely assistance, especially for technical or warranty-related inquiries. This inconsistency has led to some frustration among users needing fast resolution.
Compatibility with Other Devices
86%
This amplifier works well with a wide variety of audio devices, making it highly versatile for users with different speaker setups. The multiple input options, including Bluetooth and AUX, add to its flexibility, allowing users to easily integrate it with their existing equipment.
Some users report occasional compatibility issues when pairing with certain speaker brands or when using more complex configurations. While this is not a common problem, it may be frustrating for those who expect plug-and-play compatibility with all devices.
Sound Distortion at High Volumes
65%
35%
For most users, the amplifier delivers clear and powerful sound at moderate levels. Those who use it within reasonable volume ranges report solid performance without noticeable distortion, which makes it ideal for casual listening and small to medium setups.
However, several users have noted that when the amplifier is pushed to higher volumes, sound distortion becomes a common issue. This is especially noticeable when using high-power speakers or playing bass-heavy music, leading some to feel that the device struggles with extreme sound demands.

Suitable for:

The ARRAROWN ZK-TB21 Bluetooth Audio Amplifier Board is ideal for DIY enthusiasts looking to build custom audio setups without breaking the bank. Users who need a compact and easy-to-install amplifier for home speakers will find this device convenient, especially those who want both Bluetooth and wired AUX input options. The device is particularly useful for those seeking adjustable sound settings, as it offers independent bass and treble controls. Additionally, it's well-suited for casual listeners or users with small to medium home audio setups where power demands are moderate, as its 50W x 2 + 100W power output provides sufficient volume in such environments.

Not suitable for:

This Bluetooth amplifier may not be the best choice for users seeking top-tier performance in larger audio setups or for demanding applications. Those with high-power speakers or those who plan to push the device to its limits may encounter distortion at higher volumes. The protective features, while helpful, can also limit the amplifier’s peak performance. Additionally, users who require flawless long-range Bluetooth connectivity might experience occasional connection drops, particularly in larger or more complex environments. It also may not be ideal for those seeking extreme sound customization, as the bass and treble controls, while effective, have some limitations.

Specifications

  • Bluetooth Version: Supports Bluetooth 5.0 for wireless audio streaming with enhanced range and stability.
  • Power Output: Delivers 50W x 2 for stereo channels and 100W for the subwoofer output.
  • Channels: 2.1-channel audio output, ideal for full-range speaker setups with a subwoofer.
  • Bass & Treble Controls: Includes independent bass and treble controls to adjust the low and high frequencies of the sound.
  • Voltage: Operates with a voltage range of 12V to 24V, compatible with various power supply configurations.
  • Input Options: Supports both Bluetooth wireless input and AUX wired input for flexibility in audio sources.
  • Dimensions: Compact design measuring 4.72 x 3.94 x 0.7 inches, suitable for tight spaces and DIY projects.
  • Weight: Weighs 8.4 oz, making it lightweight and easy to integrate into custom setups.
  • Protection Features: Includes over-voltage, over-heat, and short-circuit protection for added safety during operation.
  • Subwoofer Output: Dedicated 100W output for subwoofers, providing enhanced bass response.
  • Installation: Easy installation with printed interface labels to guide the user through the setup process.
  • Compatibility: Compatible with a wide range of Bluetooth-enabled devices and wired audio sources via AUX.
  • Operating Temperature: Designed to operate within a safe temperature range, with built-in over-heat protection.
  • Audio Performance: Provides clear, customizable sound with the ability to fine-tune bass and treble for preferred audio quality.
  • Input Voltage Range: Supports an input voltage range of 12V-24V for flexible power options.
  • Material: Constructed from durable materials for long-lasting performance and reliability.
  • Device Type: Compact audio amplifier module designed for DIY audio setups and home speaker systems.
  • Safety Certifications: Built with industry-standard safety certifications, ensuring reliable operation under various conditions.

FAQ

The ARRAROWN ZK-TB21 is a Bluetooth-enabled 2.1-channel amplifier board designed for home speakers. It provides a 50W x 2 + 100W power output, which can be customized with adjustable bass and treble. The board supports both Bluetooth 5.0 wireless streaming and AUX input, making it versatile for different audio setups.

Installation of this audio amplifier is straightforward. Simply connect the appropriate speakers to the output terminals, provide a 12V-24V power supply, and pair it with a Bluetooth device for wireless audio streaming. The unit comes with labeled interface pins to assist in setup, and AUX input is also available for wired connections.

Yes, the ZK-TB21 uses Bluetooth 5.0, allowing it to connect with a wide range of Bluetooth-enabled devices like smartphones, tablets, or computers. However, ensure that your device supports Bluetooth 5.0 for optimal performance, as this will offer better range and stability.

The ZK-TB21 amplifier delivers a total of 50W per channel for two stereo speakers and an additional 100W output for a subwoofer. This makes it suitable for home audio systems in small to medium-sized rooms.

The independent bass and treble controls on the ZK-TB21 allow users to adjust the low and high-frequency ranges of the audio. This feature provides the flexibility to customize sound quality to your personal preferences or the acoustics of the room.

Yes, the amplifier is designed with multiple safety features, including over-voltage, over-heat, and short-circuit protection. These protections ensure that the unit remains safe to use, even in cases of electrical surges or extended use.

Yes, in addition to Bluetooth streaming, this device also supports an AUX input. This allows users to connect wired audio sources, such as computers, televisions, or other audio devices, providing more flexibility for different setups.

The ZK-TB21 is best suited for small to medium-sized rooms due to its 50W x 2 + 100W power output. If you're using very large speakers or need a higher output for larger spaces, you may need a more powerful amplifier.

Some users have reported minor sound distortion when the amplifier is pushed to higher volumes, especially with bass-heavy tracks. It is recommended to keep the volume within reasonable levels to avoid this issue.

The compact design, easy installation with labeled interfaces, and the flexibility of both Bluetooth and AUX input make the ZK-TB21 an excellent choice for DIY enthusiasts. It provides a powerful and customizable sound solution without taking up much space, making it ideal for building custom audio systems.