Bluetooth 5.1 MT21 Amplifier Board 2.1 Channel 200W HiFi Audio Power Amplifier Subwoofer Stereo AMP AUX USB Subwoofer Amplifier

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発送予定時間: 3 日々

により販売されています: 自社製品

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$15.89 /Pc

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(4828 利用可能)

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Actual output power is affected by matched power supply voltage, output current and speaker impedance
Higher supply voltage and lower speaker impedance will get stronger sound output performance
Please strictly match the correct power adapter and speaker specification before installation
Easy to install with simple wiring steps, suitable for audio beginners and professional enthusiasts
We provide professional installation guidance and after-sales consulting service

⚠️ Important Reminders (EU Market Standard Version)

1 × YS-MT21 Bluetooth Power Amplifier Board

? Package Contents

Approx. 141 × 131 × 27 mm

Product Dimension

Frequency Response: 20Hz - 20kHz

Signal-to-Noise Ratio: ≥90dB

Total Harmonic Distortion THD: ≤0.1%

Audio Performance Parameters

Stereo Speaker: 4Ω - 8Ω

Subwoofer Speaker: 4Ω - 8Ω

Matching Speaker Impedance

Input Voltage: DC 12V - 24V

Recommended Matching Power: 19V~24V, Current ≥5A

Working Power Supply

Bluetooth 5.1 / 3.5mm AUX / U Disk Playback / USB Sound Card

Input Mode

Stereo Channel: 50W + 50W

Subwoofer Channel: 100W

Max Peak Power: 200W

Rated Output Power

Model: YS-MT21

Audio Channel: 2.1 Channel (Left + Right + Subwoofer)

⚙️ Complete Technical Specifications

Ideal replacement and DIY accessory for multiple audio scenes

Home audio system, desktop desktop speaker, DIY speaker modification

Car audio upgrade, small KTV and mini stage audio equipment

? Wide Application Scenarios

Compact integrated terminal design, firm wiring and not easy to loose

Optimized internal air circulation for better heat dissipation

Ultra-low noise circuit design, almost no current background noise

✨ Practical Upgraded Structure Design

OVP Over Voltage Protection
UVP Under Voltage Protection
OTP Over Temperature Protection
SCP Short Circuit Protection
Safe to use for family and DIY audio lovers

Built-in multiple professional protection functions to extend service life and avoid damage

?️ Full Range Safety Protection Circuits

Equipped with large-size aluminum heat sink and high-capacity energy storage capacitor

Optimized internal PCB circuit layout

Effectively reduce operation heat, ensure long-term stable output without sound distortion

? Excellent Heat Dissipation & Stable Working

Main Volume Control
Left & Right Channel Bass Adjustment
Treble Adjustment
Independent Subwoofer Volume Control
Subwoofer Frequency Tuning
Freely customize your exclusive Hi-Fi audio effect

Support multi-dimensional sound adjustment to meet personalized listening preference

?️ Full Independent Tone Control

Bluetooth 5.1: Low latency, fast pairing & stable signal transmission
3.5mm AUX Wired Input
U Disk Music Playback
USB Sound Card Function
Widely connect with Mobile Phone, Laptop, Smart TV, Tablet, MP3 Player and more

Wide compatibility for daily devices, easy pairing and stable connection

? Multi Flexible Audio Input Ways

Standard 2.1 channel design, including Left channel, Right channel and dedicated Subwoofer channel

Rated Power: 50W+50W Stereo + 100W Subwoofer

Max Peak Power up to 200W

Delivers rich deep bass and crystal clear stereo sound, bring immersive listening experience

? Professional 2.1 Channel Sound Output

⭐ Core Advantages

Hi-Fi Clear Sound | 200W Peak Power | Independent Subwoofer Output | Multi Audio Input Supported

2.1 Channel Bluetooth Audio Power Amplifier Board YS-MT21

Q1: Is this amplifier board real power? Will it be virtual standard?

A: All rated power is actual test data. The output effect is related to power supply and speakers, no false power marking, stable sound output.

Q2: Does this board have obvious background current noise?

A: Adopts low-noise circuit design. Equipped with filtering capacitor, almost no current noise under normal use, pure HiFi sound quality.

Q3: What voltage power adapter is the most suitable?

A: Support DC 12V-24V, we suggest you use 19V-24V power supply with current above 5A, the sound power will reach the best state.

Q4: Can novice install and use it easily?

A: Yes. The interface is marked clearly, with detailed wiring guide. Just connect wire according to the mark, no professional technology needed.

Q5: What impedance speakers can I match?

A: Support 4Ω-8Ω common household speakers, suitable for most desktop speakers, home audio speakers and passive subwoofers.

Q6: Can it connect TV, computer and mobile phone?

A: Sure. It supports Bluetooth 5.1, AUX wired, U disk playback and USB sound card, widely compatible with all mainstream audio playback devices.

Q7: Does it support independent subwoofer adjustment?

A: Yes. Independent subwoofer volume and frequency adjustment function, you can freely adjust bass effect as you like.

Q8: What should I do if the product has quality problem after receiving?

A: Please contact us firstly, provide video or picture evidence. We will solve the problem quickly and offer reasonable after-sales solution.

Q9: Will it overheat after long time working?

A: Built-in large aluminum heat sink + multiple temperature protection. Normal use will not overheat, safe and durable.

Q10: Can it be used for car audio modification?

A: Yes, it is perfect for home desktop audio, DIY speaker refitting and simple car audio upgrade.

Professional After-sales & Installation Guidance

Pre-installation Tips
Please confirm the DC power supply voltage, current and speaker impedance before wiring. Do not connect wrong positive and negative poles to avoid burning the board.
Wiring Guidance
Follow our step-by-step wiring diagram to connect power cord, left/right speakers and subwoofer separately. Match the interface mark strictly, simple operation for beginners.
Daily Use Suggestion
Do not long-term run at full power to avoid overheating. Keep good heat dissipation environment when working.
Fault Quick Troubleshooting

No sound: Check power connection & Bluetooth pairing status
Big current noise: Replace qualified power adapter, stay away from interference equipment
Bluetooth disconnection frequently: Reset Bluetooth and pair again
Sound distortion: Reduce volume or match proper power supply