Product Features:
1. Supports APTX lossless decoding with 24-bit DAC for exquisite sound quality.
2. Audiophile-grade inductive LC filtering enhances audio purity.
3. Oversized heat sink design effectively reduces operating temperature.
4. Original TI op-amp NE5532 delivers superior dynamic response.
5. Dual-package compatibility allows free replacement of audiophile op-amps. Features subwoofer expansion port with anti-POP control technology.
1. Supports APTX lossless decoding with 24-bit DAC for exquisite sound quality.
2. Audiophile-grade inductive LC filtering enhances audio purity.
3. Oversized heat sink design effectively reduces operating temperature.
4. Original TI op-amp NE5532 delivers superior dynamic response.
5. Dual-package compatibility allows free replacement of audiophile op-amps. Features subwoofer expansion port with anti-POP control technology.
Product Specifications
Product Name: 2.1-Channel High-Pass Bluetooth Amplifier Board 50W+50W+100W
Model Number: ZK-TB21Q
Power Supply Compatibility: Operating voltage range 12-24VDC. Recommended voltage: 24V. Current: 8A or higher DC power supply. Do not use 24V batteries; overvoltage occurs when fully charged. Must use DC power supply; AC power is NOT supported!!! If using a DC/DC boost module, adjust to 80% of the rated voltage to prevent module damage from overshoot or ripple overvoltage!!! Maximum Power: Left/Right Channels ≤50W, Subwoofer ≤100W
Compatible Speakers: 20-100W, 4-8Ω
Bluetooth Chip: QCC3034, transmission range 15 meters.
Input Methods: Bluetooth + AUX, Bluetooth priority. Disconnect Bluetooth when using audio cable input.
Number of Channels: 2.1 (Left/Right + Subwoofer)
Amplifier Chips: Two genuine TI TPA3116D2
Protection Mechanisms: Input under-voltage, overheating, overcurrent, short-circuit protection; includes input reverse polarity protection.
Product Name: 2.1-Channel High-Pass Bluetooth Amplifier Board 50W+50W+100W
Model Number: ZK-TB21Q
Power Supply Compatibility: Operating voltage range 12-24VDC. Recommended voltage: 24V. Current: 8A or higher DC power supply. Do not use 24V batteries; overvoltage occurs when fully charged. Must use DC power supply; AC power is NOT supported!!! If using a DC/DC boost module, adjust to 80% of the rated voltage to prevent module damage from overshoot or ripple overvoltage!!! Maximum Power: Left/Right Channels ≤50W, Subwoofer ≤100W
Compatible Speakers: 20-100W, 4-8Ω
Bluetooth Chip: QCC3034, transmission range 15 meters.
Input Methods: Bluetooth + AUX, Bluetooth priority. Disconnect Bluetooth when using audio cable input.
Number of Channels: 2.1 (Left/Right + Subwoofer)
Amplifier Chips: Two genuine TI TPA3116D2
Protection Mechanisms: Input under-voltage, overheating, overcurrent, short-circuit protection; includes input reverse polarity protection.
Product Dimensions:
Integrated Potentiometer (Shell-less): 118x100x21mm
Integrated Potentiometer (Shell-included): 118x100x26mm
External Potentiometer: 100x100x21mm
Note: Sufficient output power is only achievable with adequate audio input and sufficient power supply voltage/current!!! Higher power supply voltage yields greater output power; lower speaker impedance yields greater output power!!! Ensure the power supply capacity exceeds the amplifier's actual operating power!!!
Product List:
1X Amplifier Board
1X Accessory Kit
1X Amplifier Board
1X Accessory Kit
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Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
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If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 30 days of delivery date and item must be in original new condition.
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Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
Please fill in the correct address and zip code and I will ship quickly!
- If the item is defect when you receive it or you are not satisfied with it, please return it within 30 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.