SKU: 61963697544

Fosi Audio P4 Pre-Amplifier

Sale price$5850.00 Regular price$6500.00
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Fosi Audio P4 Pre-AmplifierDescription Fosi Audio P4 is a compact, solid state stereo preamplifier featuring three RCA inputs, a motorized volume pot, and tone controls (bass treble). Mini Control Hub The P4 supports up to 3 RCA inputs, allowing easy connection to CD players, streamers, DACs, cassette decks, and turntables with built in phono preamp. Switch between sources with a click for seamless audio control. Practical and User Friendly Equipped with volume control, bass

Description

Fosi Audio P4 is a compact, solid-state stereo preamplifier featuring three RCA inputs, a motorized volume pot, and tone controls (bass/treble). 

Mini Control Hub

The P4 supports up to 3 RCA inputs, allowing easy connection to CD players, streamers, DACs, cassette decks, and turntables with built-in phono preamp. Switch between sources with a click for seamless audio control.

Practical and User-Friendly

Equipped with volume control, bass and treble adjustment with bypass function, three-level gain control, and a remote. The preamplifier offers convenient audio setup and optimization, making every listening session effortless.

Motorized Potentiometer

Featuring a high-precision motorized analog pot, the P4 delivers smooth volume adjustment, reduced noise, and minimal distortion for a purer and more refined sound experience.

Compact and Solid

 The P4 stereo preamp features a sleek, minimalist design that saves space and provides robust resistance to electromagnetic interference, ensuring reliable performance over time.

Exceptional Performance

 With a low noise floor, high signal-to-noise ratio, and extremely low distortion, the P4 pre-amplifier delivers pristine audio, ensuring accurate sound reproduction and enhancing the listening experience for audiophile

Specifications
  • SNR: ≥ 110dB

  • Dynamic Range: ≥ 110dB

  • THD+N: ≤ 0.003%

  • Crosstalk: ≥ 105dB

  • Noise Floor: ≤ 9μV

  • Tone Adjustment Gain: ±12dB

  • Channel: 2.0

 

  • Frequency Response: 20Hz-20kHz(±0.1dB)

  • Power Supply: DC 12V/1.5A

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61963697544

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4.3 ★★★★★
Based on 29 reviews
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Faye
Carnegie, US
★★★★★ 5
WONDERFUL PRODUCT
I wish that I could give this product a 10 instead of five. I started using this Eczema Honey Serum in December of 2022. I was experiencing some difficulties with my face. My face was dry, and itchy. I would scratch and scratch my face. Needless to say, as a result of my scratching, I started getting black spots on my face, very embarrassing. I started using this serum and thankfully, the itching stopped and the dark spots went away. I use the serum morning and night. The serum has a very light fragrance. It goes on like an oil but quickly absorbs into the skin. I like that this is a clean product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2025
A
Verified Purchase
Audra K Waters
Boise, US
★★★★★ 4
Great for sensitive skin
I usually buy this from a beauty retailer but they were sold out. So great to find it on Amazon
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Reviewed in the United States on April 24, 2024
M
Verified Purchase
M. Papaya
West Palm Beach, US
★★★★★ 5
Good moisturizer, not too oily.
I often times use this in the morning before starting my day and it tends to really keep it moisturized for at least 4-5 hours. This is someone who has really dry skin and it constantly always having to remoisturize throughout the day. Nonetheless, I would still keep up water intake and try not to touch your face too much after applying. Quality is great and it has a natural smell that is not overpowering. Would def recommend.
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Reviewed in the United States on June 11, 2025
L
Verified Purchase
Louise W
Draper, US
★★★★★ 3
Soothing
Feels good on, no major difference on the dry/flaky skin above eyelid, so time to see a dermatologist.
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Reviewed in the United States on May 1, 2025
C
Verified Purchase
caitlyn23
Louisville, US
★★★★★ 5
So far so good
I’ve been using the Eczema Honey Nourishing Face Serum, and overall I like it. It feels rich and soothing without irritating my sensitive skin. I’ve definitely noticed my face feels more hydrated and calm — but it’s still early to tell if it’s reducing eczema flare‑ups long-term.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 21, 2025

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