Fosi Audio P4 Mini Stereo Preamplifier with 3 RCA Inputs | Adjustable Gain 3/6/9dB | Bass & Treble Control

The Fosi Audio P4 Mini Preamp is a high-performance home audio stereo preamplifier designed for audiophiles who demand detailed sound control and seamless source switching. With 3 RCA inputs, bass & treble tone adjustment, and three selectable gain levels (3dB / 6dB / 9dB), this compact preamp ensures every sound source is optimized before reaching your amplifier, active subwoofer, or powered speakers.

Built for both Hi-Fi enthusiasts and professional setups, the P4 delivers crystal-clear sound with ultra-low noise and distortion, making it a perfect addition to any high-end home stereo or desktop system.

Key Specifications:

• Brand: Fosi Audio

• Model: P4 Mini Stereo Preamp

• Input Type: 3× RCA Line Inputs

• Output Type: RCA Line Out (for amplifier or powered speakers)

• Adjustable Gain: 3-level (3dB / 6dB / 9dB)

• Tone Controls: Independent Bass & Treble Adjustment

• THD (Total Harmonic Distortion): ≤0.01%

• SNR (Signal to Noise Ratio): ≥98dB

• Frequency Response: 20Hz–20kHz (±1dB)

• Power Supply: DC 12V (included)

• Build: All-metal aluminum alloy body

• Dimensions: Compact desktop-friendly design

Features & Highlights:

• Three RCA Inputs: Connect multiple audio sources — CD player, DAC, turntable (with phono preamp), or streaming device — and switch effortlessly.
• 3-Level Adjustable Gain: Fine-tune your sound with selectable gain (3/6/9dB) to match your amplifier or active speakers.
• Bass & Treble Control: Tailor the low and high frequencies to your taste, achieving perfect tonal balance for any genre.
• High-Fidelity Sound: Designed with low-noise circuitry and precision components for pure, transparent sound reproduction.
• Universal Compatibility: Works with power amplifiers, active subwoofers, powered speakers, and DAC systems.
• Compact & Stylish: Premium aluminum alloy housing with a clean, modern look — perfect for any desktop or home audio rack.
• Plug & Play Setup: Simple operation, no software or complex installation required.

Ideal For:

• Hi-Fi stereo systems and desktop DAC setups

• Active subwoofer or amplifier control center

• Home theater front-end sound adjustment

• Studio monitors and professional audio gear

• Sound enthusiasts seeking detailed control

Why Choose Fosi Audio P4 Mini Preamp?

The Fosi Audio P4 blends audiophile-grade performance with everyday usability. Its multiple input options and precision tone controls give you full control over your sound environment. Whether you’re upgrading a home stereo, powering an amplifier, or refining your DAC output, the P4 ensures your audio chain stays clean, warm, and dynamically rich.

Why Buy from Voltech Electronics?

Voltech Electronics is the authorized source for Fosi Audio products in Bangladesh, offering 100% genuine preamps, amplifiers, and Hi-Fi accessories with nationwide delivery and after-sales support.

???? Voltech Electronics – Trusted Audio Equipment Partner in Bangladesh
???? Visit: https://voltechbd.com
???? WhatsApp: 01540371013