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 Jul 31 - Aug 5

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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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4.6 ★★★★★
Based on 30 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Recommended by my breeder
Size: Small, Style: Wishbone/Dental
Purchased these two small sized Benebones for my puppy Springer Spaniel. It’s one of her favorite toys and it is well used and well worn. Replaced these with the medium size recently as she’s almost full grown now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
B
Verified Purchase
Becky
New York, US
★★★★★ 5
Dogs love them and long lasting
Size: Large, Style: Wishbone/Dental
My dogs love these chew toys and they have lasted nearly 2 months and they still have plenty of chew left to them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
C
Verified Purchase
chase
Dallas, US
★★★★★ 5
The only chew toy that has actualy held up...for well over 2 years!
Size: Medium, Style: 4 Pack, Size: Medium, Style: 4 Pack
These things are amazing! They last forever even with dogs that can destroy nearly everything else in mins! I ordered these as a doggie Xmas gift over TWO YEARS AGO, and they are still pretty much fully intact! They chew on them all the time, too!(see pics; that's over two years of steady use!) I only got the one 4 pack, and have 4 dogs, too! Since making them so well does kind of reduce my ability to buy many more from them, I feel I should at least let people know they really are crazy durable and dogs love them! I will prob buy another 4 pack soon, just so they are easier to find(end up under couches,etc). Def a good buy!!!!
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Reviewed in the United States on May 10, 2026
M
Verified Purchase
Marie Phillips
Battle Creek, US
★★★★★ 5
Built for heavy chewers and actually holds up
Size: Medium, Style: Fishbone/Wishbone
This chew toy is a total win for heavy chewers and has held up really well compared to so many others we’ve tried. It keeps dogs busy for long stretches and they stay genuinely interested in it instead of destroying it in minutes. The shape makes it easy for them to grip and chew comfortably, which adds to how much they use it. The durability is the real standout here, making it one of those rare toys that actually earns a repurchase. The material feels sturdy, it’s easy to clean, and there’s no noticeable odor, which is always a plus.
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Reviewed in the United States on May 2, 2026
A
Verified Purchase
Arrin
Port Orchard, US
★★★★★ 5
Definitely recommend
Size: Large, Style: 4 Pack
My dogs absolutely love these! I bought them at a great price! They have lasted my dogs over a year! I have a full pitbull, pit/lab, pit/boxer, and a pit/mastiff. So needless to say they pass the power jaw test. They look just like the pictures and they are pretty light weight!
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Reviewed in the United States on May 24, 2026

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