---
product_id: 300855416
title: "BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included"
brand: "fosi audio"
price: "R1563"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Fosi Audio"
url: https://www.desertcart.co.za/products/300855416-box-x1-phono-preamp-for-mm-turntables-with-3-5mm
store_origin: ZA
region: South Africa
---

# 12V DC stable power supply 3.5mm headphone + RCA outputs 70dB SNR ultra-clear sound BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included

**Brand:** fosi audio
**Price:** R1563
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your vinyl game with flawless sound and sleek versatility!

## Quick Answers

- **What is this?** BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included by fosi audio
- **How much does it cost?** R1563 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/300855416-box-x1-phono-preamp-for-mm-turntables-with-3-5mm)

## 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

- • **Compact Rugged Design:** Durable black anodized steel casing fits seamlessly into any modern audio space.
- • **Peace of Mind Included:** Comes with 24-month warranty and responsive customer support for worry-free enjoyment.
- • **Plug & Play Powerhouse:** Reliable 12V DC adapter ensures stable, distortion-free audio every time.
- • **Dual Output Flexibility:** Simultaneously connect RCA line out and 3.5mm headphone jack for versatile listening setups.
- • **Crystal-Clear Vinyl Revival:** Ultra-low noise phono preamp with precise RIAA equalization for authentic analog warmth.

## Overview

The Fosi Audio BOX X1 is a compact, high-performance phono preamp designed for MM turntables. It delivers ultra-low noise, precise RIAA equalization, and a maximum output of 2V at 10K Ohms with a 70dB signal-to-noise ratio and ≤0.08% THD. Featuring both RCA and 3.5mm headphone outputs, it offers versatile connectivity in a durable steel chassis powered by a stable 12V DC adapter. Ideal for audiophiles seeking crisp, authentic vinyl playback with hassle-free setup and a 24-month warranty.

## Description

Phono preamp with RIAA equalization, 3.5mm headphone jack, and RCA outputs for converting phono signals to line-level with low-noise and clear, stable audio performance.

Review: Compact, functional and a good price. - This is an excellent little pre amp which I bought to replace an old B Tech one I have had for many years. Having RCA and 3.5mm outputs is good. I use it with a Bluetooth transmitter and the sound quality is excellent. Having the inputs and outputs at the back is good as is an on/off switch. Overall I am very impressed with it as it is so much more compact and functional that my old B Tech. I also have a couple of Fosi amplifiers and am impressed with the quality of the companies products. Very highly recommended if you are looking for a compact and cheap pre amp.
Review: Amazing product - Perfect Compatibility with my Yamaha AVR-S80 sound system, crisp sound quality, small and perfect size for where I needed it, runs off of a uk plug, cable length I thought was going to be a bit short but luckily it was just the right length, supplies enough power from the socket to the preamp

## Features

- ✅Hassle-Free Playback - The BOX X1 is an ultra-low noise phono preamp that seamlessly converts phono signals into line-level signals, featuring a grounding post for optimal turntable protection.
- ✅Exceptional Audio Quality - Equipped with a high-quality DC12V power supply, this MM phono preamplifier offers reliable and stable performance, delivering an output voltage level of 2V max (P-P) at 10K Ohms, an SNR of 70dB, and THD of ≤0.08% @ 1kHz and 3mV, while conforming precisely to the standard RIAA frequency response.
- ✅Versatile Connectivity - The phono preamp provides MM turntable input, RCA line output for powered speakers, and a 3.5MM headphone output, allowing simultaneous use of RCA line output and AUX headphone output for maximum flexibility.
- ✅Perfect Integration - Designed for vinyl record enthusiasts, this phono preamp ensures accurate sound replication with its built-in low-noise phono preamp circuitry, conforming precisely to the RIAA standard, and encased in a durable black anodized steel case for reliable and rugged audio transmission.
- ✅What's Included - With the BOX X1 phono preamp, you receive a 12V power adapter, user manual, worry-free 24-month warranty, and friendly customer service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08TLRPMDC |
| Best Sellers Rank | 1,615 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1 in Home Audio Preamplifiers |
| Brand | Fosi Audio |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 1,990 Reviews |
| Included Components | Power Supply |
| Item Dimensions | 18 x 13 x 6 centimetres |
| Item dimensions L x W x H | 18 x 13 x 6 centimetres |
| Manufacturer | Fosi Audio |
| Manufacturer Part Number | BOX X1 |
| Material | steel |
| Maximum Supply Voltage | 12 Volts (DC) |
| Maximum supply voltage | 12 Volts (DC) |
| Minimum Supply Voltage | 12 Volts |
| Minimum supply voltage | 12 Volts |
| Model Number | BOX X1 |
| Mounting Type | Freestanding |
| Mounting type | Freestanding |
| Number of Channels | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Type Name | box |
| Product Warranty | 24 months |
| Specification Met | RoHS |
| Voltage | 12 Volts |

## Product Details

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

## Images

![BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included - Image 1](https://m.media-amazon.com/images/I/512kyOt5zaL.jpg)
![BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included - Image 2](https://m.media-amazon.com/images/I/61rKopfQ9mL.jpg)
![BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included - Image 3](https://m.media-amazon.com/images/I/71-UnwjFGTL.jpg)
![BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included - Image 4](https://m.media-amazon.com/images/I/717UdBuuD3L.jpg)
![BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included - Image 5](https://m.media-amazon.com/images/I/711PnlKKLVL.jpg)

## Available Options

This product comes in different **Color** options.

## 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

### ⭐⭐⭐⭐⭐ Compact, functional and a good price.
*by W***N on 8 September 2026*

This is an excellent little pre amp which I bought to replace an old B Tech one I have had for many years. Having RCA and 3.5mm outputs is good. I use it with a Bluetooth transmitter and the sound quality is excellent. Having the inputs and outputs at the back is good as is an on/off switch. Overall I am very impressed with it as it is so much more compact and functional that my old B Tech. I also have a couple of Fosi amplifiers and am impressed with the quality of the companies products. Very highly recommended if you are looking for a compact and cheap pre amp.

### ⭐⭐⭐⭐⭐ Amazing product
*by E***D on 12 April 2026*

Perfect Compatibility with my Yamaha AVR-S80 sound system, crisp sound quality, small and perfect size for where I needed it, runs off of a uk plug, cable length I thought was going to be a bit short but luckily it was just the right length, supplies enough power from the socket to the preamp

### ⭐⭐⭐⭐ Simple, Good-Sounding Phono Preamp with Easy Bluetooth Setup
*by M***E on 23 February 2026*

The Fosi Audio BOX X1 with an MM turntable, feeding a Bluetooth transmitter which then connects to my Roth VA4 active speakers. Setup was very easy and worked first time. The turntable goes into the BOX X1, then out to a UGREEN Bluetooth transmitter (set to transmit mode), which pairs wirelessly with the speakers. No apps, no screens, no messing around, just buttons and LEDs. Once paired, it reconnects automatically. Sound quality is better than I expected for the price. The BOX X1 is quiet, with no noticeable hum or noise in my system, and it does a perfectly good job of phono amplification. Over Bluetooth, the sound remains clear and balanced. Yes, Bluetooth is technically lossy, but in real listening terms the loss is mostly academic. I wouldn’t notice it unless I was directly A/B testing against a wired connection. There is a small amount of Bluetooth delay, but in a vinyl-only setup this doesn’t matter at all. It has no impact on listening enjoyment. Overall, this is a very good value phono preamp. Paired with a modern Bluetooth transmitter, it’s a practical and affordable way to get vinyl playing wirelessly without sacrificing sound quality in any meaningful way. Pros • Easy to set up • Clean, quiet sound • Great value for money • Works well with Bluetooth transmitters Cons • MM cartridges only • Bluetooth is technically lossy (but not an issue in practice) I’d happily recommend this to anyone looking for a simple, budget-friendly phono preamp.

## Frequently Bought Together

- 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
- Tan QY 2RCA to 2RCA Cable 3Ft, Gold-Plated 2 RCA Male to 2 RCA Male Stereo Audio Cable for Home Theater, HDTV, Gaming Consoles, Hi-Fi Systems (3Ft/1M)
- Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-14*