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Bluetooth 5.0 TPA3116D Digital Amplifiers Board 2.1 Channel Audio 2*50W+5.0W AUX

$ 13.13

Availability: 21 in stock
  • Brand: Unbranded
  • Condition: New
  • EAN: Does not apply
  • All returns accepted: Returns Accepted
  • Restocking Fee: No
  • Item must be returned within: 60 Days
  • MPN: Does Not Apply
  • Refund will be given as: Money Back
  • UPC: Does not apply
  • Return shipping will be paid by: Buyer

    Description

    Bluetooth 5.0 TPA3116D Digital Amplifiers Board 2.1 Channel Audio 2*50W+5.0W AUX
    Q&A
    1. How to choose a power supply?
    The power supply with the board is very important, and the ripple of the selected power supply must be
    A power supply with a small, large ripple will cause the noise at the bottom of the power amplifier board to increase.
    There is electric current. The higher the voltage, the greater the current and the greater the output power
    That’s enough, if you only have 12V1A, you can bring 3-4 inch sound box. If you are above 19V5A, there is no problem with 8-10 inches.
    Power must be highly valued. If the voltage is too low, the sound is amplified
    It is easy to cause sound distortion, if the current is too small,
    The speaker will pull down the voltage, work abnormally or the sound quality will deteriorate.
    It is recommended to use a power supply of 18V19V24V with a current above 5A.
    If you only have 9V12V or 1A2A power supply, you can also use
    However, the power is small, and the volume is close to the maximum when using it. Distortion affects sound quality.
    2. How to choose a speaker?
    About the speaker type: commonly used speakers are generally 4-8 ohms
    Can be used. The left and right channel speakers need to be connected to full frequency speakers
    Horn or medium and high frequency speakers, the power is between 20W-100W.
    The subwoofer speaker cannot be connected to the ordinary speaker, it needs to be connected with a subwoofer
    The speaker of the speaker, the power is between 20-100. Subwoofer
    The diving frequency of horn must be at least 50Hz.
    If your speaker has low power, such as between 20W-50W
    It can also be used, and the power supply voltage needs to be lower to prevent
    Burn the speaker after loud, for example, choose a power supply below 15V. Such as
    If you are a 50W-100w speaker, don’t worry about the speaker burning
    For bad problems, you can choose a 12-24V power supply.
    The higher the voltage, the greater the sound or power that can be output.
    The speaker power is not easy to exceed 100W, otherwise it will affect the sound quality.
    3. Introduction to audio input mode
    This audio power amplifier module has two audio input methods: one is Bluetooth input, one is AUX input, Bluetooth mode has priority.
    Bluetooth can be connected in any mode. As long as Bluetooth is connected
    The successful connection is the Bluetooth mode, and the Bluetooth mode supports self
    Move back to connect. When Bluetooth is not connected, AUX plug-in is in AUX mode.
    It should be noted that this module needs to be confirmed when using AUX mode
    The Bluetooth connection of has been disconnected.
    4. How to adjust the main volume?
    The MAIN—VOLUME knob adjusts the main volume. Right-handed tonic
    The volume increases, and the left-handed main volume decreases. Master volume to left and right channels
    And the volume of the subwoofer.
    5. How to adjust the left and right channel treble and bass?
    R&LCHANNEL—BASS knob controls the bass, turn right
    Bass enhancement, left-handed bass attenuation. When the knob is at the right end
    In position, the bass is neither enhanced nor attenuated.
    R&LCHANNEL—TREBLE knob controls the treble, right
    Rotating treble is enhanced, and left-handed treble is attenuated. When the knob is in the middle
    In position, the high pitch is neither enhanced nor attenuated.
    Note when adjusting the treble and bass: when the treble or bass is adjusted to
    Close to the maximum, if the sound is distorted, it means treble or bass adjustment
    The gain is too large, you need to turn the treble or bass knob to the left to increase
    Lower the gain or turn the MAIN-VOLUME knob on the right to the left to let
    The total volume is reduced.
    6. How to adjust the subwoofer?
    SUBWOOFER—VOLUME knob controls the volume of the subwoofer
    of. Right-hand turn the volume up, and left-hand turn the volume down.
    SUBWOOFER—FREQ knob is to control the cutoff frequency of the subwoofer
    of.
    The right-hand frequency increases, and the left-hand frequency decreases. Frequency adjustment
    The range is 20Hz-200Hz.
    7. The voice is small and okay, when the voice becomes louder, the voice appears muddy
    phenomenon?
    The sound is distorted, please turn down the total volume or change the voltage
    A higher-level adapter power supply.
    8. The sound is small and it’s okay. When the voice becomes louder, the sound becomes stuck
    phenomenon?
    Insufficient input power, power supply itself intermittently cuts off
    Protection, please replace the power supply with a higher power; or if the power is too large, the power
    The release board heats up seriously, and there is a thermal protection situation, which reduces the power
    Use or enhance heat dissipation.
    9. What factors are related to the sound quality?
    The sound quality is not only related to the power amplifier module, but also to the electricity
    Source, sound source and the entire sound system are related. Basic tone
    Each link of the sound system will affect the sound quality, the main
    Section has audio transmission line, audio power supply, tone circuit, power amplifier
    Circuits, speakers and surrounding environment. Only sound source, power supply,power
    The sound quality is the best when the amplifier module matches the speaker of.
    Package Included:
    1x TPA3116D Bluetooth Digital Amplifiers Board 2.1 Channel Audio MD 2*50W+5.0W AUX
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    Refund
    If you can't receive the product within 2 months (60 days), please contact with us,we promise to payback 100% of your money.
    We ensure our products work normally before post.If the products is broken before arrival to you,all you should do is taking a photo to show us our broken product.We promise to payback 100% of your money.
    If the item is defect when you receive it or you are not satisfied with it, please return it within 14 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.
    If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.