---
product_id: 483417882
title: "Fosi Audio Box X1 Phono Preamp for MM Turntable Mini Stereo Audio Hi-Fi Phonograph/Record Player Preamplifier with 3.5MM Headphone and RCA Output with DC 12V Power Supply"
brand: "fosi audio"
price: "₩74695"
currency: KRW
in_stock: true
reviews_count: 7
category: "Fosi Audio"
url: https://www.desertcart.kr/products/483417882-fosi-audio-box-x1-phono-preamp-for-mm-turntable-mini
store_origin: KR
region: South Korea
---

# DC 12V power supply 3.5mm headphone output 2V max output voltage Fosi Audio Box X1 Phono Preamp for MM Turntable Mini Stereo Audio Hi-Fi Phonograph/Record Player Preamplifier with 3.5MM Headphone and RCA Output with DC 12V Power Supply

**Brand:** fosi audio
**Price:** ₩74695
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your vinyl vibe—because your records deserve the best spin!

## Quick Answers

- **What is this?** Fosi Audio Box X1 Phono Preamp for MM Turntable Mini Stereo Audio Hi-Fi Phonograph/Record Player Preamplifier with 3.5MM Headphone and RCA Output with DC 12V Power Supply by fosi audio
- **How much does it cost?** ₩74695 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/483417882-fosi-audio-box-x1-phono-preamp-for-mm-turntable-mini)

## 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

## Key Features

- • **True-to-Source Audio:** Built-in RIAA standard circuitry guarantees authentic, warm vinyl sound reproduction every time.
- • **Compact Rugged Design:** Sleek steel black anodized case fits any setup while ensuring durability and reliable performance.
- • **Versatile Connectivity:** Seamlessly connect your MM turntable to powered speakers or headphones via RCA and 3.5mm outputs simultaneously.
- • **Plug & Play Convenience:** Includes 12V DC power adapter and grounding post for easy setup and turntable protection.
- • **Ultra-Low Noise Precision:** Experience crystal-clear vinyl playback with a 70dB SNR and ≤0.08% THD for audiophile-grade sound.

## Overview

The Fosi Audio Box X1 is a compact, ultra-low noise phono preamp designed for MM turntables, delivering up to 2V output with a 70dB signal-to-noise ratio and less than 0.08% distortion. Featuring RCA and 3.5mm headphone outputs, it supports simultaneous connections to powered speakers and headphones. Housed in a durable steel anodized case and powered by a 12V DC adapter, it ensures authentic RIAA-standard vinyl sound with easy plug-and-play setup.

## Description

Fosi Audio Box X1 Phono Preamp for MM Turntable Mini Stereo Audio Hi-Fi Phonograph/Record Player Preamplifier with 3.5MM Headphone and RCA Output with DC 12V Power Supply : desertcart.ae: Electronics

Review: Fosi ✌️ - Fosi good products
Review: It’s good - It served the purpose

## Features

- 【Converts MM Turntable Signals】: BOX X1 compact ultra-low noise phono preamp converts phono signals to line-level signals. Designed with a grounding post to protect your turntable.
- 【MM Phono Preamplifier with DC12V Power Adapter】: Output Voltage Level: 2V max (P-P) at 10K Ohms, SNR: 70dB, THD: ≤0.08% @ 1kHz and 3mV, Frequency Response: Standard RIAA. Equipped with DC12V high-quality power supply.
- 【RCA Output & 3.5MM Headphone Output】: BOX X1 supports MM turntable input, 3.5MM headphone output, and RCA line output for powered speakers. You can connect a power amplifier through the 3.5MM AUX or RCA output, then connect the passive speakers and enjoy high-quality music with headphones through the 3.5 mm headphone output. Note: RCA line output and AUX headphone output can be output simultaneously.
- 【Amplify Vinyl Records to Interface with Your Home Stereo System】:The built-in low noise phono preamp circuitry is highly accurate and precisely conforms to the RIAA standard. Housed in a steel black anodized case, the BOX X1 gives you flawless audio reproduction in a rugged and reliable package.
- 【What You Get】: BOX X1 phono preamp x1, 12V power adapter x1, User manual x1, our worry-free 24-month warranty, and friendly customer service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08TLRPMDC |
| Best Sellers Rank | #4,502 in Electronics ( See Top 100 in Electronics ) #1 in Home Audio Preamplifiers |
| Item model number | BOX X1 |
| Language | English |
| Manufacturer | Fosi Audio |
| Product Dimensions | 18 x 13 x 6 cm; 340 g |

## Product Details

- **Item dimensions L x W x H:** 18 x 13 x 6 centimeters
- **Manufacturer:** Fosi Audio
- **Maximum supply voltage:** 240 Volts
- **Minimum supply voltage:** 12 Volts (DC)
- **Voltage:** 12 Volts

## Images

![Fosi Audio Box X1 Phono Preamp for MM Turntable Mini Stereo Audio Hi-Fi Phonograph/Record Player Preamplifier with 3.5MM Headphone and RCA Output with DC 12V Power Supply - Image 1](https://m.media-amazon.com/images/I/61N2wiBdvfL.jpg)

## Questions & Answers

**Q: How to adjust speaker volume (BOX X1)？**
A: The speaker volume is controlled through the volume knob on the speakers.

**Q: Is the DC input jack center-negative or center-positive (BOX X1)?**
A: It is a center-positive connector.

**Q: What is the gain (in dB) of BOX X1?**
A: The gain of the BOX X1 is 35 dB.

**Q: Can this be used with a moving coilcartridge?**
A: No,this is a MM phono preamp only.

**Q: Can this work with my turntable andheadphones?**
A: Yes,The BOX X1 is designed with 3.5MM headphone output.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fosi ✌️
*by F***L on 11 August 2025*

Fosi good products

### ⭐⭐⭐⭐ It’s good
*by M***. on 17 March 2024*

It served the purpose

### ⭐⭐⭐⭐⭐ Review
*by A***R on 9 January 2026*

I’m very pleased with this amp. Packaged nicely. Looks great. Affordable. Sound/volume is good. works well with my turntable. Exactly what I needed. I would recommend.

## Frequently Bought Together

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-26*