Fosi Audio DC Power Filter

Fosi Audio DC Power Filter

The Fosi Audio DC Power Filter is a compact inline hardware accessory designed to clean up and stabilize incoming power signals for hi-fi audio equipment. It is heavily engineered to mitigate switching power supply noise and electromagnetic interference (EMI).

 

Core Technical Specifications:

• Voltage & Current Capability: Operates within a broad 12V to 55V DC input range and supports a maximum current capacity of up to 10A.
• Physical Interface: Features a standard 5.5 × 2.5 mm DC barrel jack input and output configuration.
• Architecture: Uses an internal network of premium filter capacitors and inductors to target both conducted and radiated electrical noise.

 

Key Benefits:

• Noise Suppression & Purification: Filters out high-frequency switching noise, hums, and harmonics before they reach sensitive amplifier stages.
• V3 Mono Optimization: While compatible with various setups, it is custom-tailored for the Fosi Audio V3 Mono ecosystem to cleanly distribute high-amperage power.
• Included DC Jack Doubler: Frequently bundled with a 1-to-2 splitter cable, letting you feed a single massive power supply (like a 48V/10A brick) into the filter and cleanly split the purified current to two separate mono block amplifiers.
• Equipment Protection: Acts as a buffer to absorb minor power surges and voltage spikes, preventing unexpected damage to your audio components.

 

Product Details:

• Noise suppression: Through the combination of filter capacitors and inductors, the power filter effectively suppresses conducted and radiated interference, reducing the impact of electromagnetic interference on devices.
   
• Power purification: Filters out high-frequency noise and harmonics from the power supply, providing a stable and clean power signal, and enhancing the performance of audio and video equipment.
   
• Device protection: Reduces the impact of power surges and spikes on devices, extending their lifespan.