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The Fosi Audio 48V 5A Power Adapter is a premium, compact power supply designed specifically for Fosi Audio amplifiers like BT20A Pro, TB10D, and V3. It delivers a stable 48V DC output with up to 5 amps of current, ensuring high-performance audio amplification. Built with safety features including overcurrent and overvoltage protection, this adapter guarantees reliable and secure operation. Its lightweight design makes it ideal for home, office, or industrial use, backed by a 24-month warranty for peace of mind.
















| ASIN | B0C2BQ4P8J |
| Amperage | 5 Amps |
| Best Sellers Rank | 25,378 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 117 in Hi-Fi Amplifiers |
| Box Contents | 1 x AC Adapter |
| Brand | Fosi Audio |
| Brand Name | Fosi Audio |
| Colour | Black |
| Connector Types | Barrel Connector |
| Connector type | Barrel Connector |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 428 Reviews |
| Enclosure Material | Metal |
| Form Factor | Compact |
| Input Voltage | 48 Volts |
| Input voltage | 48 Volts |
| Item Dimensions | 19.3 x 9 x 3.8 centimetres |
| Item Weight | 0.79 Kilograms |
| Item weight | 0.79 Kilograms |
| Manufacturer | Fosi Audio |
| Manufacturer Part Number | 48V電源 |
| Material | Metal |
| Maximum Power | 240 Watts |
| Model Number | 48V |
| Output Current | 5 Amps |
| Output Voltage | 48 Volts (DC) |
| Output Wattage | 240 Watts |
| Product Warranty | 24 months |
| Specification Met | CE |
| Unit Count | 1.0 gram |
M**H
Excellent upgrade
Significantly improved the performance of my DAC. Well worth it.
A**R
Reliable
This amplifier is a great way to pump up the sound thanks for the quick delivery
J**T
Excellent
Yep a definite game changer for the v3
K**D
Not needed for bass shakers
Have a fosi V3 used to power a Dayton 300w bass shaker. It came with the 32v adapter which was fine but not getting the most out of my setup. Purchased this 48v adapter to up the power but I can't really tell the difference and would have kept the 32v. However this is not its main purpose and it's probably much better powering speakers with a nice pre amp setup.
A**2
Fosi Audio 48v power supply
Good quality power supply makes my fosi Audio BT20 Amp sound much louder.
T**Y
An excellent quality power supply
Perfect for powering your amplifiers for that extra power. Excellent price and build quality - like many of this brands products they deliver on quality and eagerly priced - so an all round winner for me.
A**M
Excellent upgrade
As a couple of other reviewers have noted, this 48v upgrade on the 24v or 32v supplies that small digital amps come with, brings much added clarity. Definite improvement on a slightly recessed top end, and removed a sense of ‘compression’ on denser tracks. I wasn’t sure if it would be much of a difference and got ready for some A/B testing. As soon as I heard this power supply in action I knew I didn’t need to do an A/B, the improvement was that obvious. I am using an Aiyima 07 amp (came with 32v 5A supply) to drive KEF kht300 speakers (8 Ω). Very happy with this upgrade.
S**E
Worth while upgrade
Really added some much needed bass to my fosi audio v3. Sounds better than my Cambridge audio sr20
B**U
Adequate, clean power.
I'm using this PSU instead of the 32V one supplied with the Fosi V3 amp. It works well, keeps the amp happy as it powers a pair of older Polk RT5 speakers. Those speakers are neither special, not particularly difficult to drive but their sensitivity is a little low for a pair of bookshelves so they need a bit of power to truly sing. I used this combo for a couple of smaller house parties and this combination was more than adequate to deliver the power needed without breaking a sweat. Recommended!
M**E
Good quality product, worked great. This is the required item for the AMPs full power output.
These are the required power supply model to get the full benefit of the Amps output power potential. Produced a clean sound with no noise distortion. They work well, and I seem to be well made. With a power supply you don’t want the cheapest model, especially for fire hazard potential. Always make sure you get the correctly matched item.
G**R
Super upgrade voor Fosi versterker
Wat een verbetering t.o.v. de meegeleverde voedingsadapter. Klank stukken beter, meer vermogen van de versterker. Geen ruis of vervorming, kan ganse dag spelen zonder oververhit te raken. Had dit gelezen op een forum over Fosi versterkers en vergelijkbare toestellen. Klinkt even goed als mijn Denon en Yamaha nu. Echt een super aanrader, een upgrade om U tegen te zeggen en dit voor een prijsje. Top.
N**N
Good
Recommended to use for fosi v3, no problems at all for 1 year.
G**R
Fosi Audio V3 sahipleri sahip olması gerekli..
sipariş ettikten 11 gün sonra teslim edildi, kesinlikle V3 sınıf atladı. Odyofil değilim ancak ses kalitesi konusunda bariz netlik ve vurgulu solo seslerde ise hafif boyut kazandı. güç konusuna ben girmiyorum amacım güç almak değildi ama doğal olarak güçte geldi, tavsiye ederim
Trustpilot
1 month ago
1 month ago