---
product_id: 467818832
title: "Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Hi-Fi Stereo Audio Pre-Amplifier for Record Player"
brand: "fosi audio"
price: "A$163"
currency: AUD
in_stock: true
reviews_count: 7
category: "Fosi Audio"
url: https://www.desertcart.com.au/products/467818832-fosi-audio-box-x2-phono-preamp-for-turntable-preamplifier-mm
store_origin: AU
region: Australia
---

# Low-noise integrated circuits Tube preamp for warm, smooth sound 3 gain modes (39/42/45 dB) Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Hi-Fi Stereo Audio Pre-Amplifier for Record Player

**Brand:** fosi audio
**Price:** A$163
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your vinyl vibes with warm, customizable hi-fi clarity!

## Quick Answers

- **What is this?** Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Hi-Fi Stereo Audio Pre-Amplifier for Record Player by fosi audio
- **How much does it cost?** A$163 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/467818832-fosi-audio-box-x2-phono-preamp-for-turntable-preamplifier-mm)

## 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

- • **All-Inclusive Kit:** Comes with vacuum tubes, RCA cable, power adapter, and 18-month global warranty for worry-free listening.
- • **Low-Noise Clarity:** Advanced circuitry minimizes low-frequency noise for crystal-clear playback.
- • **Warm Analog Tube Sound:** Experience rich, smooth audio with included vacuum tubes and DIY tube swapping.
- • **Universal Compatibility:** Grounding post and 3.5mm AUX input ensure seamless connection with your turntable and other devices.
- • **Customizable Gain Control:** Switch between 39, 42, and 45 dB gain for perfect sound tailoring.

## Overview

The Fosi Audio Box X2 is a compact, high-quality phono preamp designed to convert turntable signals into clear line-level audio. Featuring three switchable gain modes (39, 42, 45 dB), low-noise integrated circuits, and a warm tube preamp design, it delivers superior analog sound. Compatible with multiple vacuum tube types for personalized audio tuning, it includes all necessary accessories and an 18-month global warranty, making it a top choice for audiophiles seeking affordable, professional-grade vinyl sound enhancement.

## Description

Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Hi-Fi Stereo Audio Pre-Amplifier for Record Player : desertcart.ae: Electronics

Review: Opened up the sound - This perform better than the inbuilt phono stage of the turntable or the onkyo receiver. The voice is warm and pleasent. A good stylus with the phono preamp is a must if you have a turntable.
Review: Works fine but power adapter not suited for UAE - This item does the job with my record player (Fluance RT85) however one little gripe is that the plus is not suitable for UAE/UK - it is a 2 pin plug. It is on the product page as an image (not text) but after some scrolling - would help if its in title description. Small gripe to an otherwise great product.

## Features

- ❤Tube MM Phono Preamplifier: Converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with grounding post to protect your turntable.
- ❤Three switchable gain modes: 39, 42, 45 dB. Adjustable gain levels to give you customizable control and outstanding compatibility. Entry-Level high-end analog sound and top-notch circuitry for an unbeatable low cost.
- ❤Tube Preamplifier: It's also a tube preamp with 3.5mm AUX Input. Designed and assembled by Fosi Audio from high-quality components. Great warm, smooth-sounding.
- ❤Applicable vacuum tube model: 6A2/6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tube with different sound.
- ❤What You Get: Box X2 phono preamp x1, Vacuum tubes x2, RCA cable x1, power adaptor x1, user manual x1, 18-Month global warranty, and 24-Hour quick customer service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XNTHHBP |
| Best Sellers Rank | #17,743 in Electronics ( See Top 100 in Electronics ) #4 in Home Audio Preamplifiers |
| Item model number | BoxX2 |
| Language | English |
| Manufacturer | Fosi Audio |
| Product Dimensions | 11.84 x 9.78 x 3.28 cm; 308.44 g |

## Product Details

- **Item dimensions L x W x H:** 11.8 x 9.8 x 3.3 centimeters
- **Manufacturer:** Fosi Audio
- **Maximum supply voltage:** 12 Volts (DC)
- **Minimum supply voltage:** 12 Volts (DC)
- **Voltage:** 12 Volts (DC)

## Images

![Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Hi-Fi Stereo Audio Pre-Amplifier for Record Player - Image 1](https://m.media-amazon.com/images/I/61xsoICTIOL.jpg)

## Questions & Answers

**Q: My turntable has a built-in phono preamp. How do I connect it to the BOX X2?**
A: • If the turntable has a built-in phono preamp, switch it to "Line Out" mode and connect it to the 3.5mm input on the BOX X2. • If the turntable is set to "Phono" mode, connect it to the MM input on the BOX X2 for optimal sound.

**Q: Does the BOX X2 have any built-in tone control? Dose the BOX X2 have bluetooth?**
A: No. The BOX X2 don't have bluetooth. And the BOX X2 features gain control, not tone control. For enhanced tonal shaping, consider using models like BOX X4, which includes treble and bass adjustments. For bluetooth consider using models like BOX X3.

**Q: How to connect a turntable to the BOX X2 and active speakers?**
A: Make sure the turntable has a Phono output with an MM cartridge. Some turntables have a built-in phono preamplifier, set it to Phono switch.

**Q: Can I replace the tubes in the BOX X2?**
A: You can substitute with 7-pin tubes such as 6AK5, 6AK5W, 6Zh1P, 6J1, and 6J1P. These can also directly replace WE-403A, WE-403B, EF95, 6A2 tubes, 5725w tubes and standard 5654 tubes.

**Q: Turntable has built-in preamp/line switch—Can I still use this instead of my built-in preamp?**
A: Yes, deselect the preamp on your turntable. Note: Please confirm whether your turntable has a built-in phono preamp, if there is a phono preamp, and it cannot be deselected, then you can only connect 3.5 mm input, can not connect MM Turntable input.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Opened up the sound
*by J***Y on 21 September 2024*

This perform better than the inbuilt phono stage of the turntable or the onkyo receiver. The voice is warm and pleasent. A good stylus with the phono preamp is a must if you have a turntable.

### ⭐⭐⭐⭐ Works fine but power adapter not suited for UAE
*by M***S on 22 June 2024*

This item does the job with my record player (Fluance RT85) however one little gripe is that the plus is not suitable for UAE/UK - it is a 2 pin plug. It is on the product page as an image (not text) but after some scrolling - would help if its in title description. Small gripe to an otherwise great product.

### ⭐⭐⭐⭐⭐ Review
*by K***S on 27 April 2022*

I have never written a review on Amazon, or anywhere else that I can remember. But his product seems special. I read the reviews and thought “no way, this can’t be that good”. But I was also looking at a so-called affordable audiophile preamp that cost literally 10 times as much as the Fosi, so it couldn’t hurt to try the little guy. I’m so glad I did. Straight out of the box it put the in-built preamp on my Klipsch The Sixes to shame, it opened up the speakers in a very nice way. And this is before any tube burn in and literally from a cold start. The sound is balanced and inviting. Absolutely perfect for pleasurable listening, I can’t find any harsh edges anywhere. For the price, I was expecting a much muddier sound, but the clarity is surprising. I like clarity, especially on vocals, so this is a plus for me. I’m writing this at the end of a 3-hour listening session, that’s gotta count for something. This little preamp is so good that it made me specifically search for other Fosi gear, I’m about to purchase one of their DACs to test out. You see, products like these bring me hope in the world of Hifi, where every little magic box seems to cost a years’ salary. Good to know one can actually find decent quality at prices that encourage people to experiment, rather than buying something and having to force oneself to like it because the financial commitment is so large. I’ll definitely be keeping an eye out on this brand. We’ll done Fosi!

## Frequently Bought Together

- Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear, Pre-Amplifier for MM Turntable Phonograph and Record Player, with DC 12V Power Supply
- Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin JAN 5654W Fully-Tested Vacuum Tubes - Upgrade for 6AK5 / 6J1 / 6J1P / EF95 - JAN 5654W Platinum Grade Pair
- Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-18*