SKU: #5114Display & Communication
ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
—
₹1,321.00
₹1,149.00
(Inc. GST)Save 13%- •⚠️ Power Supply Warning:Do not connect this module directly to a 24V battery pack. Use a suitable regulated DC power supply as specified for the module. 🎛️ Control Functions MAIN: VOLUME: Controls the overall volume of the left, right and subwoofer channels. R&L CHANNEL-BASS: Adjusts bass level for the left and right channels. R&L CHANNEL-TREBLE: Adjusts treble level for the left and right channels. SUBWOOFER-VOLUME: Controls the subwoofer volume. SUBWOOFER-FREQ: Adjusts the subwoofer cutoff frequency from approximately 20Hz to 200Hz. 🔊 Speaker Selection Left and right channels can be connected to 4Ω–8Ω full-range or mid/high-frequency speakers. Recommended speaker power is 20W–100W. The subwoofer output should be connected to a suitable subwoofer speaker, not a regular full-range speaker. The subwoofer should have suitable low-frequency performance, with the source information recommending a frequency capability of at least 50Hz. Speaker impedance and power should be matched correctly with the amplifier.
- •The board includes protection against reverse connection, overheating, overcurrent and short circuit
- •Use a suitable regulated DC power supply as specified for the module
- •🎛️ Control Functions MAIN-VOLUME: Controls the overall volume of the left, right and subwoofer channels
- •R&L CHANNEL-BASS: Adjusts bass level for the left and right channels
In stock(10 units ready to dispatch)
1
Check Delivery Availability of Your Pincode:
SKU: ET05114
Categories: All, Display & Communication
10 People watching this product right now!
Description
[Amplifier Board] ZK-MT21 2.1 Channel Bluetooth 5.0 Audio Amplifier Module – 50W × 2 + 100W Subwoofer The ZK-MT21 2.1 Channel Bluetooth Audio Amplifier Module is a compact high-power stereo amplifier board designed for DIY Bluetooth speaker and home audio projects. It supports Bluetooth 5.0 and AUX audio input and provides dedicated left, right and subwoofer channels with adjustable volume, bass, treble, subwoofer volume and subwoofer frequency controls. With a suitable DC power supply and properly matched speakers, the module can deliver up to 50W + 50W for the left/right channels and up to 100W for the subwoofer channel. The board includes protection against reverse connection, overheating, overcurrent and short circuit.
🔹 Key Features
- •The board includes protection against reverse connection, overheating, overcurrent and short circuit
- •Use a suitable regulated DC power supply as specified for the module
- •🎛️ Control Functions MAIN-VOLUME: Controls the overall volume of the left, right and subwoofer channels
- •R&L CHANNEL-BASS: Adjusts bass level for the left and right channels
- •R&L CHANNEL-TREBLE: Adjusts treble level for the left and right channels
- •SUBWOOFER-VOLUME: Controls the subwoofer volume
🔹 Technical Specifications
⚠️ Power Supply Warning:Do not connect this module directly to a 24V battery pack. Use a suitable regulated DC power supply as specified for the module. 🎛️ Control Functions MAIN:VOLUME: Controls the overall volume of the left, right and subwoofer channels. R&L CHANNEL-BASS: Adjusts bass level for the left and right channels. R&L CHANNEL-TREBLE: Adjusts treble level for the left and right channels. SUBWOOFER-VOLUME: Controls the subwoofer volume. SUBWOOFER-FREQ: Adjusts the subwoofer cutoff frequency from approximately 20Hz to 200Hz. 🔊 Speaker Selection Left and right channels can be connected to 4Ω–8Ω full-range or mid/high-frequency speakers. Recommended speaker power is 20W–100W. The subwoofer output should be connected to a suitable subwoofer speaker, not a regular full-range speaker. The subwoofer should have suitable low-frequency performance, with the source information recommending a frequency capability of at least 50Hz. Speaker impedance and power should be matched correctly with the amplifier.
🔹 Pin Configuration & Wiring
🔹 Applications
This component is engineered and suitable for:
- •�️ Installation & Usage Connect a suitable DC 12–24V power supply to the amplifier module. Connect the left and right speakers to their respective output terminals. Connect a suitable subwoofer to the subwoofer output. Ensure the speaker impedance is within the supported 4–8Ω range. Connect the audio source through Bluetooth or AUX. Adjust the main volume, bass, treble, subwoofer volume and frequency according to your requirements. Start with a low volume and gradually increase it. Ensure adequate ventilation and heat dissipation during high-power operation.
- •⚠️ Important Precautions Do not connect directly to a 24V battery pack. Use a suitable regulated DC power supply. Do not reverse the power supply polarity. Do not short-circuit the speaker outputs. Do not exceed the recommended speaker power and impedance. Ensure the power supply can provide sufficient current. Insufficient power may cause distortion or abnormal operation. Excessive load can cause the amplifier to heat up and activate thermal protection. Provide adequate ventilation during high-power operation. If distortion occurs at high volume, reduce the volume or use a more suitable power supply. The amplifier's actual output depends on the power supply, speaker impedance, audio input and overall system configuration.
🔹 Package Includes
- ✓1 × ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
Wholesale Tiered Pricing
Selected Quantity:
Subtotal: ₹1,149.00 +18% GST
Related products
Complementary hardware and compatible components for your project
8×8 LED Matrix Module (MAX7219)
MAX7219 dot LED matrix module, MCU controlled display.
₹144.17
+ 18% GST · In stock
7-Segment LED Display (4-digit)
LED 4-digit display module with clock point, 4-pin Dupont line for Arduino.
₹68.29
+ 18% GST · In stock
Only 2 leftGSM SIM800L
GPRS transfer board, micro SIM, GSM core, TTL port for Arduino.
₹349.05
+ 18% GST · Only 2 left
