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.

Fosi Audio 48V 5A & 10A Power Supply Unit

Fosi Audio 48V 5A 10A Power Supply Adapter for TB10D, BT20A PRO,V3,ZA3,V3 Mono - Fosi Audio

Fosi Audio 48V 5A & 10A Power Supply Unit

$59.99

24 total reviews

Size: 48V 5A

48V 10A
48V 5A

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Fosi Audio 48V 5A & 10A Power Supply Unit

48V 5A

$59.99

Product details

The 48V 5A 10A power adapter supply is specifically designed for use with amplifiers and is ideal for providing reliable power to Fosi Audio amplifiers, such as BT20A Pro, TB10D, ZA3, and V3 amplifiers.
Provides a stable and reliable output voltage of 48V for powering your device. Capable of delivering up to 5A/10A of current, making it suitable for high-power applications.
Manufactured with high-quality materials, ensuring long-term durability and reliability.
Incorporates several safety features, including overcurrent protection and overvoltage protection, to ensure safe operation.
The compact and lightweight design allows for easy portability and uses in tight spaces. It can be used in a range of settings, including home, office, or industrial environments.

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.

Worth the buy

I bought the Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp with the 32v5a power supply, which was a decent buy, but the 48v10a power supply boasted the output that really rocks my Micca MB42X G2 bookshelves and Rockville 12" powered Sub, good upgrade.

Fosi Audio 48V 5A & 10A Power Supply Unit

quick and fast

good PSU

Works.

Impressed!

I bought my ZA 3's with the 48v 5A power supply and after doing many upgrades to my system (DAC's, all the OP amps I2S interconnects ect.) I was curious if swiching the power supplies would make a difference. I try to have no expectations so that I perceive actual results and to make sure that my mind isn't playing tricks on me and causing me to spend unnecessarily. I tried to do research is switching from the 48v 5a to the 48v 10a power supply would make much of a difference and I wasn't able to find too much information. In the reviews here it was saying that it improved the bass and dynamics of the music and it seems unlikely that it would but I was shocked to find that it did for me too and I A/B tested the power supplies on songs that I was extremely familiar with and my test concluded that the performance was much better regarding the clarity and micro details. I acutally wanted to send them back to get my $200+ for the 2 power supplies because I didn't think that they would actually make a difference but they did and I think they are a nice improvement to my s;ystem so I will be keeping them! 10/10 would reccomend!

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Fosi Audio 48V 5A & 10A Power Supply Unit

Product details

FAQs

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