Fosi Audio PSU20 Linear Power Supply 40W Rated Strong PowerMultiple voltage levels and various interfaces, flexibly compatible with a variety of devices.
Lower Noise. Blacker Background.Unlike switching power supplies, the PSU20 produces a simpler, more controllable noise spectrum. Combining premium Nippon Chemi-Con capacitors with a Texas Instruments quad-core linear regulation design, it reduces ripple noise and delivers a cleaner background for high-fidelity audio systems.
Power Three Devices SimultaneouslyWith dual DC outputs and a USB-An output, the PSU20 can power your entire audio system from a single source. Included DC-to-DC cables eliminate bulky power adapters and messy wiring, simplifying your setup and reducing cable clutter.
Fully Isolated OutputsEach output features its own dedicated rectification, filtering, regulation, and protection circuitry, ensuring clean, stable power delivery without interference between connected devices.
Simplify ConnectionSimplify your power adapter in one step, easier and neater cable management.
Perfect Match for Fosi GearPurpose-built for Fosi Audio Components, the PSU20 offers seamless compatibility and a unified design that fits naturally into your system.
Smart Cooling. Ultra Quiet.A custom low-noise cooling fan automatically activates at 55°C / 131°F, operating at just 30dB. Efficient thermal management keeps the PSU20 running cool and stable during extended listening sessions.
Multiple ProtectionsSupports over-temperature, over-voltage, and over-current protection to safeguard your connected audio equipment and ensure reliable system operation.
80W Toroidal TransformerCustom pure copper toroidal transformer with up to 100W peak output ensures stable power delivery, even with three devices connected.
Nippon Chemi-Con CapacitorsPremium capacitors help minimize ripple and noise, with ripple as low as 0.1mV.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
High-Reliability RectifierA GBU806 rectifier bridge rated at 600V/8A ensures fast, stable AC-to-DC power conversion.
4-Core RegulationPowered by three LM1085IT and one ST78M05 linear regulators from Texas Instruments.
Product DetailsPower 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.
SpecificationsPower Input: AC: 115V / 230V -Note: 115V setting supports 100–120V input: 230V setting supports 220–240V inputPower 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 loadWhat's in the box?Fosi Audio PSU20 x1 1.2m (47.2 in) DC-DC Power Cable x1 0.3m (11.8 in) DC-DC Power Cable x1 User Manual x1 AC Power Cord x1
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.