0 ratings
ZK-TB21 2.1 Channel Amplifier Board with Treble and Bass Control DC 12-24V Audio Power Amplifier Module
ZK-502T Amplifier ensures perfect HIFI sound with excellent sound quality.
ZK-TB21 2.1 Channel Amplifier Board with Treble and Bass Control DC 12-24V Audio Power Amplifier Module
Item #: 221239060

ZK-TB21 2.1 Channel Amplifier Board with Treble and Bass Control DC 12-24V Audio Power Amplifier Module

Item #: 221239060

TTD 249

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
us Imported from USA store

QTY:

Order now and get it around Friday, August 14
Our Top Logistics Partners
  • fedex
  • dhl
ZK-502T Amplifier ensures perfect HIFI sound with excellent sound quality.
U-Care Warranty:
None
Select a Plan
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

What Stands Out

Tailored Sound Control
Equipped with treble and bass control, this amplifier allows users to customize audio output easily, enhancing their listening experience and ensuring perfect sound quality for any environment.
Versatile Power Range
Supports a DC input of 12-24V, making it compatible with various power sources, ensuring versatility and convenience for users who want flexibility in their audio setups.
Compact Design
The 2.1 channel configuration and compact design make this amplifier ideal for space-saving installations without compromising sound quality, perfect for home theaters and small audio setups.

Product Details

Shop for Diitao ZK-502T 50W50W Stereo Audio Amplifier Board at Ubuy Trinidad and Tobago. Get a powerful and easy-to-install BT 5.0 AMP board for DIY wireless speakers. Explore now!
Voltage24 volts
Maximum Supply Voltage24 volts_of_direct_current
Minimum Supply Voltage12 volts
Mounting TypeSurface Mount
Number of Channels2
Package Type NameBox
Material TypeMetal
ManufacturerDiitao
ModelZK-TB21
Brand NameDiitao
UPC701715524941
Included ComponentsAmplifier board
Part NumberDT20705
Item Weight1.2 lbs (540 grams)

Who Should Buy?

Suitable For
  • DIY Audio Enthusiasts

    Ideal for hobbyists building custom audio projects requiring adjustable treble and bass control for superior sound tuning.

  • Small Speaker Systems

    Perfect for compact speaker setups needing a compact amplifier solution capable of delivering 2.1 channel audio.

  • Portable Audio Projects

    Great for mobile sound systems or portable music players that benefit from efficient power use and customizable sound features.

Not Suitable For
  • High-Power Requirements

    Not suitable for users needing an amplifier for large-scale systems or high-wattage professional audio setups.

Product Description

ZK-TB21 2.1 Channel Amplifier Board with Treble and Bass Control DC 12-24V Audio Power Amplifier Module

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the key features of the ZK-502T Stereo Audio Amplifier Board?

    Answer: The ZK-502T boasts a 50W per channel output, adjustable treble and bass controls, and both BT 5.0 and AUX inputs, making it versatile for various audio setups. With its DC voltage compatibility of 9-24V, it's ideal for DIY enthusiasts who want to create custom wireless speaker systems. This flexibility ensures it can be used in diverse projects, from home sound systems to portable speakers, enhancing audio quality across the board.
  • Question: How does the Bluetooth functionality enhance the ZK-502T amplifier?

    Answer: The amplifier features Bluetooth 5.0, enabling seamless wireless connectivity with devices like smartphones and tablets. This technology allows users to stream music without the hassle of cables, facilitating a tidy setup. It's particularly useful for outdoor or mobile applications, enabling easy pairing and control of audio playback from a distance, making it perfect for parties, picnics, or casual listening at home.
  • Question: Can I connect multiple audio sources to the ZK-502T amplifier?

    Answer: Yes, the ZK-502T allows for multiple audio sources through its BT and AUX inputs. You can connect your smartphone via Bluetooth for wireless playback, and also connect another device, like a laptop or music player, through the AUX input. This dual input functionality ensures you can switch between devices smoothly, providing flexibility and convenience for users who have varied audio needs.
  • Question: What is the best power supply for the ZK-502T amplifier?

    Answer: For optimal performance, a power supply providing between 9V and 24V is recommended for the ZK-502T. Using a power supply within this range ensures that both channels operate without distortion while achieving maximum output levels. Utilizing a suitable power supply will also prolong the lifespan of the amplifier by preventing overheating and potential damage in high-load scenarios.
  • Question: What types of speakers are compatible with the ZK-502T amplifier?

    Answer: The ZK-502T amplifier is compatible with a wide range of speakers, typically allowing for 4-8 ohm impedance speakers. Whether you choose bookshelf speakers, full-size floor-standing models, or custom-built DIY speakers, the amplifier can drive them effectively. This compatibility provides users with the flexibility to create a bespoke audio experience tailored to their acoustic preferences.
  • Question: How do I adjust treble and bass settings on the ZK-502T?

    Answer: The ZK-502T features dedicated treble and bass control knobs that allow users to fine-tune the audio experience to their liking. Simply turn the knobs to increase or decrease the treble or bass levels, enhancing your listening experience based on different music genres or personal preferences. This feature is especially beneficial for audiophiles seeking to optimize sound quality in variable acoustic environments.
  • Question: Is the ZK-502T amplifier suitable for outdoor use?

    Answer: While the ZK-502T amplifier itself is not waterproof, it can be used outdoors as long as it is protected from moisture and extreme weather conditions. Pairing it with weather-resistant speakers in an outdoor setup makes it a great choice for garden parties, barbecues, or camping trips. Ensure that the setup stays dry to maintain performance and longevity, allowing for enjoyment in various environments.
  • Question: What size enclosures are recommended for building speakers with the ZK-502T?

    Answer: When building speakers to pair with the ZK-502T, an enclosure size of around 0.5 to 1.5 cubic feet is typically recommended, depending on the speaker drivers used. Proper enclosure size can greatly influence sound quality, particularly in terms of bass response. Researching your specific driver specifications can help in determining the ideal enclosure dimensions to achieve the best audio performance.
  • Question: Can the ZK-502T amplifier be used in car audio systems?

    Answer: Yes, the ZK-502T can be integrated into car audio systems. Its voltage range (9-24V) is suitable for car batteries, and it can significantly enhance sound output compared to standard car stereo systems. This integration is ideal for DIY car audio projects, enabling users to build a custom audio setup that provides superior sound quality and control over audio settings.
  • Question: Where can I buy the ZK-502T 50W50W Stereo Audio Amplifier Board?

    Answer: You can purchase the ZK-502T 50W50W Stereo Audio Amplifier Board from Ubuy in Trinidad and Tobago. Ubuy offers a wide selection of electronic components, providing a reliable source for this amplifier board. With user-friendly navigation and detailed product descriptions, finding and acquiring the ZK-502T is both simple and convenient.

Diitao 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

Pros

  • Excellent build quality
  • User-friendly design
  • Outstanding performance
  • Stylish appearance
  • Highly rated by customers

Cons

  • Minor issues with initial setup.

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9250 + reviews
Read reviews
MA
Mohammad
Verified buyer

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
K
kund
Verified buyer

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 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.