Product Description
Features:
Elegant Design: Features exquisite aesthetics and a beautifully arranged layout of components.
Comprehensive Safety: Equipped with multiple protection mechanisms, including overvoltage, undervoltage, overheating, branched current detection, and short circuit protection, ensuring safe operation.
Flexible Potentiometer Separation: Allows for easy use, unconstrained by case spacing, enhancing user convenience.
Premium Amplification: Incorporates a high-quality TPA3116D2 amplifier chip with AM interference suppression, delivering superior audio quality.
Enhanced Versatility: Supports subwoofer expansion and the addition of a microphone preamp board, enabling more rich and diverse audio experiences.

Specifications:
Product name: 2.1 channel Bluetooth amplifier board module
Product model: ZK-TB21F
Bluetooth version: 5.0 (Unobstructed, 10 meters)
Input sensitivity: 500mV
Input mode: AUX+Bluetooth
Number of channels: 2.1 channels
Power amplifier chip: TPA3116D2 (With AM interference suppression function)
Power supply: DC12~24V/5A or more (The higher the voltage, the higher the output power)
Applicable speakers: 20~100W, 4~8Ω
Output power: Left and right channels ≤ 50W, subwoofer ≤100w
Protection mechanism: Over-voltage, under-voltage, overheating, DC detection, short-circuit protection
Size: As pictures show

Note:
To maximize output power, ensure that both the audio input and power supply voltage/current are sufficient. Additionally, keep in mind that a higher power supply voltage and lower speaker impedance will directly increase the output power. Importantly, ensure the adaptor power supply's rating exceeds the amplifier's actual working power requirements.

Package Included:
1 x Amplifier Module Kit

If you have any questions, please feel free to contact us. 

We will reply to you as soon as possible and solve it for you. 

At the same time, we will uphold the concept of service first, and serve you wholeheartedly. 

We hope every time you shop is a pleasant experience!


We only accept Ebay payments from verified accounts with confirmed addresses.

Orders will be shipped after receiving cleared payment.


Item(s) will be shipped within 2 business days after payment is cleared.
If you want faster shipping way. Please contact us before making payment.
Sometimes due to problems with our transportation company system, your shipping information may be delayed to update. We recommend that you try again after 3-4 days. If you still haven't checked the shipping information, you can contact us.

If you have any questions, please feel free to email our service specialists 24 Hours a Day, 7 Days a Week. We will reply you as soon as possible.
Return/refund is accepted within 30 days after the buyer receives the item. NO exchange will be accepted after 30 days from the date when the item is received.

Please contact us first before returning your product!!!

Contact Us

If you have any questions, please feel free to contact us. 

We will reply to you as soon as possible and solve it for you. 

At the same time, we will uphold the concept of service first, and serve you wholeheartedly. 

We hope every time you shop is a pleasant experience!


Payment

We only accept Ebay payments from verified accounts with confirmed addresses.

Orders will be shipped after receiving cleared payment.


Shipping
Item(s) will be shipped within 2 business days after payment is cleared.
If you want faster shipping way. Please contact us before making payment.
Sometimes due to problems with our transportation company system, your shipping information may be delayed to update. We recommend that you try again after 3-4 days. If you still haven't checked the shipping information, you can contact us.
Returns

If you have any questions, please feel free to email our service specialists 24 Hours a Day, 7 Days a Week. We will reply you as soon as possible.
Return/refund is accepted within 30 days after the buyer receives the item. NO exchange will be accepted after 30 days from the date when the item is received.

Please contact us first before returning your product!!!