Shopping Cart

Your cart is empty.

Your cart is empty.

Hztyyier ZK HT21 100W 500mV 2.1 CH Digital Subwoofer Power Amplifier Board for DIY Speaker, 3 Channel, Aluminum, Internal Mount

4.6 (3) Write Review
Free shipping on orders over $29.99

$42.93

$ 19 .43 $19.43

In Stock

About this item

  • Volume Control: This power amplifier board supports subwoofer volume control, L and R channel treble and bass can be independently controlled. Inbuilt subwoofer low pass filter, with crossover control. Compatible with mobile phones, tablets, computers, CD players, etc.
  • Subwoofer Amplifier Board: If you are tired of power amplifiers with only a single volume knob, then you feel right, because you have further requirements for audio. By adjusting the high and low frequency knobs of ZK HT21, you can make the sound more layered and make the bass more shocking.
  • High Safety: This stereo amplifier board supports reverse polarity , over and under voltage , overheat , short circuit .
  • 100W Output: 2.1 CH stereo output power is 50Watt x 2 and 100Watt, working voltage range is DC12 to 24V, suitable for 4 to 8Ω, 50Watt to 300Watt passive speakers.
  • Stable Performance: This HiFi amplifier board with simple and compact layout popping and audible noise will not occur even under high power output.


Product Description

1214220079211-1

Subwoofer Amplifier Board, ZK HT21 Audio Amplifier Board

YT

Subwoofer Amplifier Board, ZK HT21 Audio Amplifier Board


High safety: This stereo amplifier board supports reverse polarity protection, over voltage and under voltage protection, over temperature protection, short circuit protection.


100W output: The stereo output power of 2.1 channels is 50W x 2 and 100W, the working voltage range is 12-24V DC, suitable for 4-8Ω passive speakers, 50W-300W.


Performance Stable: This high fidelity amplifier board with simple and compact design will not produce audible noise even at high power output.

1

1214220079211-2

1214220079211-3

1

1214220079211-2

1214220079211-3


How to use:


Once all the speaker cables and power are connected to the amplifier, there should be an indicator light indicating that the amplifier is on, then open the BT settings in your phone and search for it, when all are plugged in and turned on, press the master volume button will set up the BT connection.



Specification:


Item Type : subwoofer amplifier board


Material: Aluminum


Model: ZK HT21


Power amplifier chip: TPA7498E (with AM interference suppression function)


Output power: left and right channel


Input sensitivity: 500mV


Input method: AUX + BT


BT version; 5.0 (10 meters distance without blocking)


Number of channels: 2.1 channels


Applicable power: DC 12-24V/5A or higher (the higher the voltage , the higher the output power will be)


Applicable speaker: 20-100 W, 4-8 Ω



Package list:


1 bottom cover plate


1 base plate


9x screw


1 screwdriver


1 Power Adapter


4x Large Copper Pillar


4x Small Copper Pillar


5 Knob Covers



Javier Garcia Ramirez
Reviewed in Mexico on March 16, 2025
Tengo unas semanas dándole uso y está ahora cumple con hacer ruido. Lo recomiendo? Quizás en un par de meses lo confirmaré o no. Llegó sin ningún inconveniente, eso sí.
Sarah Kerr
Reviewed in Canada on November 9, 2024
Great amplifier for the price!! Awesome thank you
Ocean company
Reviewed in Canada on January 2, 2024
A acheter sans faute mais attention au prix
Recommended Products
Amplifier Module 12‑24V 5W‑120W TDA2050, Mono Sound Speaker 1 Channel Power Amplification Board with Potentiometer, Suitable for Audio Devices

$8.30

$ 4 .31 $4.31

5.0
Select Option
Mini Stereo Amplifier, ASHATA Hi-Fi Audio Amplifier Digital Amp Mini HiFi 2.1 Stereo Bass Auto Car Home Audio Power Amplifier with & 3.5mm Audio Input,Two Pairs of Speaker Output

$17.28

$ 7 .91 $7.91

4.9
Select Option
Pyle Wireless Home Audio Amplifier System - Bluetooth Compatible Sound Stereo Receiver Amp - 6 Channel 600 Watt Power, Digital LCD, Headphone Jack, 1/4'' Microphone in USB SD AUX RCA FM Radio

$103.67

$ 47 .51 $47.51

4.7
Select Option
Bluetooth Audio Receiver Board, Bluetooth 4.1 Amplifier Module,SupportingCard USB Decording Play

$8.34

$ 4 .31 $4.31

4.7
Select Option
Fosi Audio LC30 VU Meter Amplifier Speaker Selector Switch Box Audio Visualizer 2 in 2 Out Vintage Switcher for High Power Stereo Class A, B, AB, D, Tube Amps Home Audio Component with Remote Control

$143.99

$ 59 .75 $59.75

4.6
Select Option
USB Gaming DAC Amp for PC, Headphone Amplifier for Desktop, Mini Amp, Headphone Amp, Digital-to-Analog, w/USB/Mic/AUX Inputs, 3.5MM/6.35MM/COA/Opt/RCA Outputs, Bass & Treble EQ Control, for PS5/PC

$43.19

$ 23 .03 $23.03

4.8
Select Option
TL072CP Operational Amplifier DIP-8 Delay Op Amps Dual Operational Amplifier DIP TL072CN TL072 Low Noise IC Chips with Round DIP-8 IC Socket,Pack of 12

$7.19

$ 3 .59 $3.59

4.5
Select Option
2PCS 35mm VU Meter Stereo Audio Level Indicator Audio Meter Backlight Adjustable + Audio Level Amplifier Driver Board

$22.35

$ 10 .79 $10.79

4.9
Select Option