Fosi Audio Box X5 Phono Preamplifier

About The Fosi Audio Box X5 Phono Preamplifier

The Box X5 is a high performance phono preamplifier compatible with both MM and MC cartridges, featuring 4 gain settings and an excellent precise RIAA equalization to provide a clean, direct pass-through of a signal when paired with your turntable.

Audiophile-Grade Components

This preamp utilizes a variety of materials such as 2% Precision Polyester Film Capacitors, Green Sleeve Copper Lead Audio Capacitors, 0.1% High-Precision Film Resistors, OPA1612 Op-Amp, Gold-Plated RCA Jacks, and more. It picks up the subtlest detail produced by your turntable and delivers a truly warm and inviting sound.

Multiple Gain Settings

With 4 gain adjustment level settings of 38/48/56/66dB, the preamplifier accommodates both MM and MC cartridge types, meeting a variety of needs. This enhances your phono listening experience and helps create that vintage stereo sound we all love.

Mini and Exquisite

It's built around a minimalist yet functional design featuring an all-aluminium alloy chassis. When paired with the V3 stereo amplifier, the Box X5 can bring out the best in your vinyl playback, enhancing its frequency response and dynamic performance.

User Friendly Design

It has an easy-to-use one-touch power button, gain control, and a convenient toggle switch to switch between MC and MM cartridges. In addition, the grounding port ensures that the connection is secure and hum free.

Our Review

The Fosi Audio Box X5 Phono Preamplifier is all about letting your vinyl collection shine, delivering that warm, detailed sound that makes records so addictive. Whether you’re spinning mellow jazz or punchy rock, it handles both MM and MC cartridges with ease, thanks to its flexible gain settings and clean, hum-free signal path. Its compact, all-aluminium design feels solid yet understated, the kind of gear that quietly earns a permanent spot in your setup. Paired with a good amp, it brings out the subtle textures and dynamic punch in your records, making every listen feel just a bit more special.

Main Features & Specifications

• Design: Compact High Performance Phono Preamplifier
• Input: Switchable (MM) Moving Magnet/(MC) Moving Coil Stereo RCA Input
• Output: Stereo RCA Output
• Gold-Plated RCA Jacks
• 4 Gain Adjustment Level Settings: 38/48/56/66dB
• (SNR) Signal to Noise Ratio: ≥92dB
• (THD) Total Harmonic Distortion: <0.009%
• Power Supply: DC 16V 1A
• Included Accessories: DC 16V 1A Power Adaptor, User Manual
• Dimension (WxHxD): 104 x 36 x 165mm
• Weight: 0.4 kg
• Manufacturer's Warranty: 2 Years

Note: Features & Specifications Subject To Change Without Notice. E&OE.