Fosi Audio
Fosi Audio V3 Mono
~$131
Estimated price · may vary by retailer
Fosi's first dedicated monoblock power amplifier. It distinguishes itself from previous models by implementing PFFB (Post-Filter Feedback) technology, which effectively eliminates load-dependency—a common issue in budget Class D amps where frequency response changes based on the speaker's impedance.
Specifications
Things to Know
- ⚠Chassis gets significantly warm due to the compact thermal design coupled with high power density.
- ⚠Auto-standby feature produces a mechanical 'click' that some users find audible in quiet rooms.
- ⚠Requires two separate power bricks (or a specialized splitter) for a stereo pair, adding cable clutter.
Reviews
“It is the result of a manufacturer listening to our needs, implementing features such as balanced and trigger inputs, and proper feedback mechanism to essentially eliminate load dependency. I can't imagine asking for more from Fosi when it comes to such an amplifier.”
— AudioScienceReview (amirm)
“even if the Fosi Audio V3 Monos were to last only one day past their 2-year warranty period, I think they would be worth it for many people.”
— HiFiVision (Dave B)
Video Review
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