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Specification
Brand : Generic
BulletPoint1 : 【Immersive 2.1 Channel Sound】50W+50W+100W Subwoofer delivers cinematic audio clarity and deep bass, perfect for movies, gaming, and music.
BulletPoint10 : Energy-Efficient Class-D Amplification: Reduces heat and power consumption.
BulletPoint2 : 【Bluetooth 5.0 & Multi-Device Connection】Wireless streaming (33ft range) + AUX input for TVs/phones/PCs. *Auto-switches to AUX when wired.
BulletPoint3 : 【Customizable Bass & Treble Control】Fine-tune audio with dedicated knobs. Enhanced by TPA3116D2 Hi-Fi chip for studio-grade sound with <0.1% distortion.
BulletPoint4 : 【DIY-Friendly & Ultra-Safe Design】5-layer protection (overheat/reverse polarity/overload/voltage surge) + wide 12-24V compatibility. Upgrade speakers in 15 mins.
BulletPoint5 : 【Pro-Grade Cooling System】Aluminum heatsink maintains peak 200W performance for 12+ hours. Ideal for parties/home theaters.
BulletPoint6 : Subwoofer Line-Level Output: Connects directly to powered subwoofers for added bass.
BulletPoint7 : Audio Sensing Power-On: Turns on automatically when audio signal is detected.
BulletPoint8 : Customizable EQ Controls: Adjust bass, treble, and balance via the included remote.
BulletPoint9 : VersaBox Compatible: Fits neatly in Episode’s Strong VersaBox for clean installs.
Color : #111
ExternallyAssignedProductIdentifier1 : 848864065663
ExternallyAssignedProductIdentifier2 : 0848864065663
IncludedComponents : 1 Suit
ItemName : ZK-TB21 2.1 Channel Hi-Fi Amplifier 50W+50W+100W Subwoofer Output, Bluetooth 5.0/AUX Input, Bass & Treble Control with TPA3116D2 Chip, for Car Audio/Home Theater/DIY Speakers (DC12-24V)
ItemPackageDimensions_Height : 2 centimeters
ItemPackageDimensions_Length : 8 centimeters
ItemPackageDimensions_Width : 6 centimeters
ItemTypeKeyword : electronic-component-audio-amplifiers
Manufacturer : JILIXING
Material : Copper
MaximumSupplyVoltage : 24 volts
MinimumSupplyVoltage : 12 volts
ModelName : Fafeicyu3ohk7vgd5
ModelNumber : JLX-TB21
MountingType : Surface Mount
NumberOfChannels : 3
NumberOfItems : 1
OperatingTemperature : -20 degrees_celsius
OutputPower : 200 watts
PartNumber : JLX-TB21
ProductDescription :

Product Specifications:

Product Name: 2.1 Channel Bluetooth Audio Amplifier Module
Product Model:ZK-TB21
Bluetooth Version:5.0(no shielding10 meters)
Input Sensitivity:500mV
Audio Input:AUX+Bluetooth
Channel: 2.1
Chip Solution:TPA3116D2(with AM interference suppression)
Power Range:DC12~24V/5Aabove(high power recommended high voltage)
Adapter Speaker:20W~100W 4~8Ω
Output Power: 50W+50W（R&L）+100W（Subwoofer）
Protection Mechanism:overvoltageundervoltageoverheating,DCdetection,short circuit protection
Size: 120*100*22mm
Weight: 256g (including packaging)

Warm Reminder:

 The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug it for a long time, you can unplug the DC plug on the machine.
Properly increasing the voltage or reducing the speaker impedance can effectively increase the output power.
It is recommended to use a power supply of 12-24V, 5A or more, and the speaker power is 50-100W for the best effect!

Packing Include:

ZK-TB21 Power Amplifier Board * 1
Protective Shell * 1 Set
DC Plug * 1
Screwdriver * 1
Knob * 5

Dear Valued Customer：

Thank you for choosing our product! If you encounter any issues after receiving your order—such as quality concerns, size discrepancies, or shipping irregularities—please promptly contact our customer service team through the "Your Orders" page in your Amazon account.
We commit to:

ProductSiteLaunchDate : 2025-03-31T03:02:28.307Z
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
SupplyCurrent : 5 amps
UnspscCode : 52161547
Voltage : 12 volts