4PCS YS-TB21H 200W 2.1CH Bluetooth Amplifier Board HiFi Stereo Audio AMP Subwoofer 12V-24V DIY Home Car Speaker System

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発送予定時間: 3 日々

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4PCS YS-TB21H 200W 2.1CH Bluetooth Amplifier Board HiFi Stereo Audio AMP Subwoofer 12V-24V DIY Home Car Speaker System

【200W Total 2.1CH HiFi Stereo Sound】

Built with high-efficiency Class D amplifier chips, delivers 50W×2 stereo left/right channels + 100W independent subwoofer output, supports 2-8Ω passive speakers. Provides deep, punchy bass and crisp clear treble, perfect for upgrading your audio system.

【3 Audio Input Modes & APP Wireless Control】

Supports Bluetooth 5.1 / 3.5mm AUX / USB Flash Drive playback for wide compatibility. Exclusive APP control allows you to adjust volume, EQ and sound modes wirelessly via your phone, more flexible and convenient than ordinary amplifier boards.

【Dual MIC Reverb Ports for Home Karaoke】

Upgraded with dual microphone expansion ports with built-in reverb effect, supports 2 microphones at the same time. Turn your home audio system into a karaoke machine easily, ideal for family parties and home entertainment.

【5 Independent EQ Knobs for Precise Tuning】

Equipped with 5 metal adjustment knobs: Subwoofer Frequency, Subwoofer Volume, Bass, Treble and Master Volume. Freely customize your sound style from 20Hz to 200Hz subwoofer range, ±10dB bass/treble adjustment.

【Wide Voltage & Enhanced Heat Dissipation】

DC 12-24V wide voltage input, compatible with both home power adapters and car 12V electrical systems. Upgraded large integrated heatsink ensures stable long-time high-power operation with overheat, short-circuit, over-voltage and reverse connection protection.

1、Product Description

Upgrade your audio experience with the Sienwiny YS-TB21H 2.1 Channel Bluetooth Amplifier Board — the upgraded version of classic amplifier modules, packed with more functions and better performance for DIY audio lovers, car audio modifiers and home entertainment users.

This compact amplifier board delivers powerful 200W total output (50W×2 stereo + 100W subwoofer) with low distortion and high efficiency. Unlike basic amplifier boards that only support Bluetooth and AUX, our TB21H adds USB flash drive playback, mobile APP wireless control and dual MIC karaoke function, giving you more ways to enjoy music and entertainment with one single board.

The 5 independent EQ tuning knobs let you fine-tune every detail of your sound — adjust subwoofer crossover frequency, bass depth, treble brightness and master volume to match your favorite music style. With DC 12-24V wide voltage design, it works perfectly for desktop home speaker systems, car audio upgrades, DIY speaker projects and home karaoke setups.

We also upgraded the heatsink to a larger integrated structure, paired with full-circuit protection (over-voltage, under-voltage, over-heat, short circuit, reverse connection), ensuring safe and stable operation even under long-time high-load use. Comes with complete wiring accessories including screwdriver and DC quick terminals, easy to install even for beginners.

2、Specifications

Parameter	Details
Model	YS-TB21H
Channel	2.1 Channel (Left + Right + Subwoofer)
Output Power	50W × 2 (Stereo) + 100W (Subwoofer)
Bluetooth Version	Bluetooth 5.1, effective distance 10m (no obstacle)
Audio Input	Bluetooth 5.1 / 3.5mm AUX / USB Flash Drive
Special Functions	APP Wireless Control / Dual MIC Reverb / 5-Band EQ Tuning
Power Supply	DC 12V - 24V / ≥5A
Speaker Impedance	2Ω - 8Ω Passive Speakers
Subwoofer Frequency Range	20Hz - 200Hz Adjustable
EQ Adjustment	Bass ±10dB / Treble ±10dB
Protection	Over-voltage, Under-voltage, Over-heat, Short Circuit, Reverse Connection
Heat Dissipation	Upgraded Large Integrated Heatsink
Accessories	Screwdriver + DC Quick Wiring Terminal

3、Wide Applications

? Home HiFi System – Build your desktop 2.1 speaker system for music, movies and games
? Car Audio Upgrade – Boost your car factory sound system with deeper bass and clearer stereo
? Home Karaoke – Dual MIC ports for family karaoke parties and entertainment
? DIY Audio Projects – Perfect for speaker modification, audio repair and custom audio builds
?️ Mechanical & Appliance Repair – Suitable for electronic maintenance and audio equipment retrofitting

4、Package Included

1 × Adjustment ScrewdriverYS-TB21H Upgraded Package
1 × Sienwiny YS-TB21H 2.1CH Amplifier Board
1 × Adjustment Screwdriver
1 × DC Power Terminal Conversion Connector