Product details

  • 24V 4.5A Power Adapter Description:

    AC110V-230V input; 

    DC 24V 4.5A output;

    Connector size: 5.5*2.5mm

    Power adapter for class d amplifier;

    Tips: The plug of the power adapter will match the country of your delivery address.

  • BOX X5 16V 1A Power Adapter Description:

    Input: AC 110V-230V, 50-60Hz

    Output: AC 16V 1A (Only for BOX X5, do not use with DC-type amplifiers)

    Cable Length: 1.2 meters

    Plug Type: Matches the country of your delivery address

    Important Note: This power adapter supplies AC (alternating current) output, not DC. It is exclusively designed for BOX X5 and should never be used with other amplifiers requiring DC power to avoid damage.

FAQs

Please read our FAQs page to find out more.

How to: Choose the right banana plug?
  • Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
  • Easy to wire up and solidly connect to amplifier and passive speaker.
  • If they do not fit, use a little force to tighten the plugs.
  • Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
  • Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
  • The following situations may cause this issue
  • Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
  • Possible solution
  • Check if the power supply is illuminated when plugged into AC by itself.

    Plug power supply into a different socket.

    Test the adapter with a meter.

    Try a different power supply (within a range of DC input).

    Test the included power supply on other electrical equipment.

    Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What are the differences in power outputs using the 32V and 48V power supplies?
  • Using a more powerful power supply can help prevent distortion.
  • Enables amplifier to drive larger, more powerful, or higher-impedance speakers.
What is a GaN?
  • The GaN supply has a power output of 240W.
  • Offers overload and over-temperature protection.
  • The 48V 5A GaN power supply is also available on Amazon.

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