1002L MINI 2x100W TPA3116 bluetooth 5.0 Digital Power Amplifier Board with Switch and Adjustable Volume with Shell COD

Brand: Geekcreit

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ID: 1652631
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                    This is 1002L MINIIf you need other parameters, please click ID to buy.

                    502C HIFI     ID:1582750
                    502L MINI     ID:1652630
                    1002 HIFI      ID:1652632
                     

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                    Specifications:

                     

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                    Features:
                     
                    1.5.0 bluetooth version, transmission efficiency is higher, transmission distance is longer.
                    2. Large size black gold heat sink ensures efficient heat dissipation.
                    3. potentiometer to adjust the volume,easy to control the volume, very suitable for DIY speakers.
                    (If it is a metal box, you need to draw out the bluetooth antenna.)
                    4. Copper DC connector is adopted to withstand high current and no heat.
                    5. 4*470uF green gold capacitor guarantees the power storage capacity and the continuous and stable power supply is the premise of good sound quality.
                    6. The DC head with cable can be compatible with the input power interface of this product. Even if you don't have the DC head adapter or battery, you can connect it easily.
                     
                    Note: 
                     
                    The power switch on the board is standby switch, and the machine is in standby state with low power consumption after the switch is turned off. To completely turn off the power or to remove the DC plug on the machine for a long time, it is ok.
                     
                    Question answers:
                     
                    1. How to choose the power source?
                     
                    The board's power supply is crucial.The higher the voltage, the greater the current, the more power output, if you only have 12V 1A, this can carry 3-4 inch speakers.If you are above 19V 5A, with 8-10 inches no problem, power must be highly regarded.If the voltage is too low, the sound will easily cause distortion after amplification. If the current is too low to carry the speaker, the voltage will be pulled down, and the work will be abnormal or the sound quality will be poor.
                     
                    It is recommended to use 18V19V24V power supply with current above 5A.If you only have 9V12V or 1A 2A power supply, you can also use it with low power. Be careful when using it at the maximum volume, it may cause distortion and affect the sound quality.
                     
                    2. How to choose the speaker?
                     
                    Common speakers are usually 8 ohms, can not distinguish between positive and negative polarity, the effect is the same, 4 ohms can also be used.If your horn power is small, it may be between 10W and 30W can also be used. The power supply voltage is small to prevent the speaker from burning down after playing loudly. For example, choose the power supply below 15V.If you are a 50w-300w speaker, don't worry about the speaker burning problem, you can choose a 12-24v power supply, the higher the selected voltage, then the greater the output sound or power.
                     
                    3. How to connect bluetooth?
                     
                    Power up the power amplifier board, connect to the speaker, rotate the audio knob indicator light, turn on the phone Settings -- bluetooth -- search to "bt-wuzhi", and then click connect, after connecting successfully, there will be ding dong prompt sound, at this time for bluetooth mode, play music can, next time on the power will automatically connect back with the phone.
                     
                    4. It's ok if the sound is small, but when the sound becomes larger, the sound will be turbid.
                     
                    The sound has been distorted. Please replace the adapter with a higher voltage level.
                     
                    5. It's ok if the voice is small, but when the voice becomes louder, the sound will slow down.
                     
                    The power of the input power is insufficient, and the power supply itself is intermittent power failure protection, please replace the power supply with higher power;Or the power is too large, the power amplifier plate heat serious, there is a thermal protection situation, reduce the power use or strengthen heat dissipation.
                     
                    Package Included:
                     
                    1 x 1002L MINI 2x100W TPA3116 bluetooth 5.0 Digital Power Amplifier Board





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