ZK-152H 2*15W Dual Channel Stereo Mini Bluetooth Amplifier Bluetooth Digital Power Amp Module 9-24V

ZK-152H 2*15W Dual Channel Stereo Mini Bluetooth Amplifier Bluetooth Digital Power Amp Module 9-24V

Features:
- Bluetooth digital power amplifier module
- AUX + Bluetooth dual inputs
- MAX. 2*15W dual-channel output
- Applicable scopes: For voltage range: 9-24V; For speaker resistance: 4-16Ω; For speaker power: 5-30W

Product Parameters:
- Product model: ZK-152H
- Product name: 2*15W Bluetooth 5.0 digital power amplifier module
- Chip solution: TPA3110D2 (with AM interference suppression function)
- Audio input: Bluetooth + AUX input
- Applicable power supply: 9-24V (a heat sink is required for power amplifier chips above 20V)
- Applicable speakers: 5-30W; 4-16Ω
- Number of channels: 2.0 dual channels (stereo)
- Bluetooth version: 5.0 (>15 meters, unobstructed)
- Bluetooth name: BT-WUZHI
- Protection mechanism: input anti-reverse connection protection; output overheating, DC protection
- Product size: 55x34x14mm
- The higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the larger the horn ohms, the smaller the relative sound power. Please
Attention!
- Output power (at 1KHz): 16W*2 at 12V 4Ω; 10W*2 at 12V 8Ω; 15W*2 at 16V 8Ω; 20W*2 at 20V 8Ω (heat sink required for power amplifier chip)

Tips:
- Only when the audio input is enough and the power supply/current is enough, there will be enough output power.

Package Included:
- 1 x Set of Power Amplifier

Note: Assembling is needed.

FAQ:
1. How to choose a power supply?
Power supply for the board is critical. The power supply requires small output ripple and sufficient current. It is recommended to use a 12V/19V power supply with a current above 2A. If you only have a 9V/1A power supply, you can also use it, but the power of the power supply is small and can only drive a small speaker.

2. How to choose a speaker?
Speakers generally choose impedance of 4-8 ohms, and choose power of 5-30W. The improper speaker impedance and power selection will affect the sound quality.

3. How to choose Bluetooth or AUX audio input mode?
This power amplifier board mode selection follows the principle of hardware first. If the AUX headphone cable is not plugged in, it is in Bluetooth mode, and the Bluetooth name is BT-WUZ HI, which can be connected with devices such as mobile phones. If the AUX headset cable is plugged in, it is in AUX input mode, and Bluetooth is turned off at this time.

4. It's okay if the voice is small. When the voice becomes louder, the voice becomes muddy?
The sound is distorted, please change to a higher voltage adapter power supply.

5. It's okay if the voice is small, but when the voice becomes louder, the voice freezes?
The input power is insufficient, and the power supply itself is protected against intermittent power failure. Please replace it with a higher power supply; or if the power is too large, the power amplifier board generates serious heat and thermal protection occurs. Reduce power usage or enhance heat dissipation.