Fosi Audio PSU20 Linear Power Supply
Features
- Power Three Devices Simultaneously
- Reduce Noise with 0.1mV Ripple
- Isolate Power Across 3 Channels
- Switch Between 5V, 12V & 15V
Fast, Free Shipping
24 Months Warranty
30-Day Money-Back Guarantee
Lifetime Customer Support
Fosi Audio PSU20 Linear Power Supply
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
We offer free worldwide shipping, except for certain regions such as Ukraine and Russia, where our services are currently unavailable.
-
Customer Support
WhatsApp: +8613716612254
support@fosiaudio.com
Mon-Fri: 3:00 AM - 3:00 PM PST -
FAQ’s
If you have any questions, please refer here: FAQs
80W Toroidal Transformer
Custom pure copper toroidal transformer with up to 100W peak output ensures stable power delivery, even with three devices connected.
Nippon Chemi-Con Capacitors
Premium capacitors help minimize ripple and noise, with ripple as low as 0.1mV.
High-Reliability Rectifier
A GBU806 rectifier bridge rated at 600V/8A ensures fast, stable AC-to-DC power conversion.
4-Core Regulation
Powered by three LM1085IT and one ST78M05 linear regulators from Texas Instruments.
Product details
Description
Power Three Devices Simultaneously
With dual DC outputs and one USB-A output, the PSU20 can power up to three audio devices from a single source.
Flexible Compatibility
Supports selectable 5V, 12V, and 15V outputs, making the PSU20 compatible with CD transports, DACs, headphone amplifiers, and preamps.
3 Fully Isolated Outputs
Each output has its own dedicated rectification, filtering, regulation, and protection circuitry to deliver clean, stable power without interference between connected devices.
0.1mV Ultra-Low Ripple
With ripple as low as 0.1mV, the PSU20 helps reduce ripple noise and deliver a cleaner background for high-fidelity audio systems.
Engineered for Stable Long-Term Use
A custom low-noise fan activates at 55°C and operates at just 30dB, while over-temperature, over-voltage, and over-current protection help safeguard connected audio equipment.
Specifications
Power Input
AC: 115V / 230V
Note:
115V setting supports 100–120V input
230V setting supports 220–240V input
Power Output
DC 1: 12V / 15V (Rated Power: 20W)
DC 2: 12V / 5V (Rated Power: 15W)
USB: 5V / 1A (Rated Power: 5W)
Operating Temperature
-20 ~ 40°C (-4°F ~ 104°F)
Temperature Rise Test
Temperature rise of 25°C (77°F) at full load
What‘s in the box？
- Fosi Audio PSU20*1
- 1.2m (47.2 in) DC-DC Power Cable*1
- 0.3m (11.8 in) DC-DC Power Cable*1
- User Manual*1
- AC Power Cord*1