---
product_id: 806084985
title: "Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft"
brand: "fosi audio"
price: "¥35995"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/806084985-fosi-audio-box-x2-phono-preamp-mini-stereo-audio-hi
store_origin: JP
region: Japan
---

# Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft

**Brand:** fosi audio
**Price:** ¥35995
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft by fosi audio
- **How much does it cost?** ¥35995 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/806084985-fosi-audio-box-x2-phono-preamp-mini-stereo-audio-hi)

## Best For

- fosi audio enthusiasts

## Why This Product

- Trusted fosi audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

desertcart.com: Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft : Electronics

## Features

- Tube MM Phono Preamplifier: This Fosi Audio phono preamplifier removes low-frequency noise and ensures clear sound quality by converting phono signals to line-level signals using high-quality components and low-noise integrated circuits. It is designed to safeguard your turntable thanks to its grounding post
- 3 Switchable Gain Modes: You can switch between 3 modes: 39, 42, or 45 dB. High compatibility and customizable control are provided by the adjustable gain levels. Also, it has very good circuitry and entry-level, high-end analog sound
- Tube Preamplifier: With a 3.5mm AUX input, it's also a tube preamp. Fosi Audio used high-quality component parts for the design and assemblage of this phono preamplifier. You can enjoy a very warm and smooth sound
- Stable Connection: Gold-plated RCA/3.5mm connectors resist oxidation/corrosion, boost conductivity, cut signal loss, and ensure smooth audio transmission
- Wide Compatibility: The 3.5mm to dual RCA audio cable is suitable for mobile phones, tablets, TVs, laptops, and etc, with 3.5mm audio jacks, as well as amplifiers, active speakers, preamp, home theater, DVD players, and etc, with RCA jacks

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FVSLG56M |
| Best Sellers Rank | #895,610 in Electronics ( See Top 100 in Electronics ) #429 in Audio Component Preamplifiers |
| Brand | Fosi Audio |

## Images

![Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft - Image 1](https://m.media-amazon.com/images/I/41XCEndNT1L.jpg)
![Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft - Image 2](https://m.media-amazon.com/images/I/712mByGGT-L.jpg)
![Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft - Image 3](https://m.media-amazon.com/images/I/71NSYxRhQjL.jpg)
![Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft - Image 4](https://m.media-amazon.com/images/I/51KuhT3rrkL.jpg)
![Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear and 3.5mm to RCA Cable 3.9Ft - Image 5](https://m.media-amazon.com/images/I/417J-UIVGUL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/806084985-fosi-audio-box-x2-phono-preamp-mini-stereo-audio-hi](https://www.desertcart.jp/products/806084985-fosi-audio-box-x2-phono-preamp-mini-stereo-audio-hi)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-04*