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 12 - Aug 17

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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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4.4 ★★★★★
Based on 28 reviews
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Verified Purchase
Elizabeth Raiola
Natrona Heights, US
★★★★★ 5
Puppy proof!
Size: Large Size 3, Color: White-Blue
Purchased the blue ball. Puppy loves to carry and shake the ball with the strapes in her mouth. Lots of bite marks but hasnt popped it. We bought 2. She plays in her fenced in yard with them. Fun to throw and kick around.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
E
Verified Purchase
Erin Bryant
West Palm Beach, US
★★★★★ 5
Great Toy For Playful Pup
Size: Medium Size 2, Color: White-Blue
We have purchased three of these! Our dog is obsessed with them and they keep her very entertained. The strap is a great tool for her to easily pick up the ball.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
S
Verified Purchase
Stephanie Carter
Pawtucket, US
★★★★★ 5
perfect for medium size dogs !
Size: Medium Size 2, Color: Green-Blue
i have a soccer ball loving french bulldog.. and he LOVES this toy! easy for the squishy faced breeds to pick up and run with! very durable!
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Reviewed in the United States on May 2, 2026
D
Verified Purchase
Denise
Battle Creek, US
★★★★★ 1
easily punctured by dog teeth & not durable
Size: Large Size 3, Color: World Cup
I have a medium size dog 25lbs. The tabs all came off within 4 days & deflated/punctured in the same amount of time this ball is not as sturdy as they say.
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Reviewed in the United States on May 26, 2026
S
Verified Purchase
Sunshyne
San Leandro, US
★★★★★ 4
Quality product but sold on Amazon cheaper with different seller.
Size: Medium Size 2, Color: White-Blue
The size is the reason for the missing star. Made of good quality but found cheaper from another buyer. My 9month Cane Corso hasn't destroyed it yet and enjoys playing keep away with the other dogs.
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Reviewed in the United States on November 2, 2025

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