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Fosi Audio P3 Vacuum Tube Preamplifier Headphone Amplifier
Product Details
Thank you for your interest in this product.
This is the Fosi Audio P3 Vacuum Tube Preamplifier Headphone Amplifier.
Purchased new in 2024.
Operation has been confirmed, and it was used on a desk after opening.
There are no noticeable scratches other than those shown in the photos. It is in relatively clean condition.
All accessories shown in the photos are included.
[Overview]
RMS Power: 250mW @16Ω; 150mW @32Ω; 32mW @250Ω; 20mW @300Ω
Headphone Impedance: 16-300Ω; SNR: ≥103dB; THD: ≤ 0.02%
Outputs: RCA/AUX/3.5mm Headphone Jack
Dynamic Range: 104dB; Frequency Response: 20Hz-20kHz (±1dB)
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.






