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Fosi Audio P4 Mini Preamp BLACK
Brand New · Factory Sealed · Fosi Audio Authorized Dealer
$139.99
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Free Canada-wide Shipping Order Now : Ships Mon
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  • In Stock
  • Free shipping
  • 1yr Manufacturer Warranty
  • Pickup available: Richmond Hill, ON
  • 5% Price Promise
Trusted by 150,000+ Canadian customers since 2001
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Compact Analog Preamp with Tone Control

The Fosi Audio P4 Mini Preamp is a versatile and ultra-compact analog preamplifier designed for desktop or hi-fi use. Despite its small footprint, it delivers clean, dynamic sound with precise tone shaping, making it perfect for enhancing the performance of power amps or active speakers.

Dedicated Treble, Bass, and Volume Control

Built-in treble and bass knobs allow fine-tuned tonal adjustments to suit your system and room acoustics. The separate volume knob gives you full control over output level, making the P4 ideal for tailoring your listening experience.

Simple Integration and Quality Components

The P4 features high-quality RCA input and output connections for seamless integration into existing setups. Its solid metal chassis helps reduce interference and ensures long-term durability in any system.

Features

  • Mini hi-fi analog preamp with tone controls
  • Treble and bass adjustment knobs for custom sound tuning
  • Compact aluminum chassis with metal volume knob
  • Gold-plated RCA inputs and outputs for clean signal transfer
  • Ideal companion for power amplifiers, active speakers, or headphone amps

Specifications

  • Model: P4
  • Input: RCA stereo
  • Output: RCA stereo
  • Tone Control: Treble and Bass ±12dB
  • Signal-to-Noise Ratio: ≥98 dB
  • Frequency Response: 20Hz–20kHz (±1dB)
  • Power Supply: DC 12V
  • Dimensions (W×H×D): 100 × 33 × 95 mm
  • Weight: 0.35 kg

Product Details

  • Fosi Audio P4 
  • Brand New : Factory Sealed
  • EAN : 6976136960607 
  • EFLC : 15093
  • Write a review

Warranty

One Year Warranty

  • Parts and Labour Warranty
  • Canada-wide Coverage
  • Fosi Audio Authorized
View the detailed warranty policy

Returns

Easy Returns

  • 14-day return window on eligible items
  • Full refund issued in accordance with our return policy
View our full return policy

About Fosi Audio

Portable DACs & Headphone Amps • Amplifiers & Receivers • Earbuds • Audio System Components

Fosi Audio focuses on personal audio built for everyday listening, with a lineup that can include headphones, earbuds, portable DACs, and digital audio gear designed for clean sound and easy use. Whether you're listening at home, at work, or on the go, these products are made for practical comfort, reliable connectivity, and solid performance. We've been carrying Fosi Audio since 2020.

Explore our current Fosi Audio selection and best sellers. We offer both new and open-box items, and everything is clearly marked. Popular categories include Portable DACs & Headphone Amps, Amplifiers & Receivers, Earbuds.

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What Our Customers are Saying
150,000+ customers served across Canada since 2001
63 weeks ago
★★★★★
“Great service. Clear info on the open-box condition and quick shipping. Speakers sound great!”
— Philippe C.
62 weeks ago
★★★★★
“Fast shipping, great product. No complaints.”
— Dave
20 weeks ago
★★★★★
“Friendly chat support and very quickly shipped. Excellent price on the speakers I purchased. A+.”
— David S.
Recently posted
★★★★★
“I got an open-box high-end product from them at a fantastic discount. Great experience overall.”
— Nicolas G.