---
product_id: 394620872
title: "Box X2 Phono Preamp for MM Turntable Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply"
brand: "fosi audio"
price: "S/.778"
currency: PEN
in_stock: true
reviews_count: 12
category: "Fosi Audio"
url: https://www.desertcart.pe/products/394620872-box-x2-phono-preamp-for-mm-turntable-phonograph-preamplifier-gain
store_origin: PE
region: Peru
---

# Tube preamp with replaceable vacuum tubes DC 12V power supply 3 gain modes (39/42/45 dB) Box X2 Phono Preamp for MM Turntable Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply

**Brand:** fosi audio
**Price:** S/.778
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your vinyl game with warm tube vibes and precision gain control — don’t just listen, experience!

## Quick Answers

- **What is this?** Box X2 Phono Preamp for MM Turntable Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply by fosi audio
- **How much does it cost?** S/.778 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/394620872-box-x2-phono-preamp-for-mm-turntable-phonograph-preamplifier-gain)

## 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

- • **Low-Noise Precision:** Advanced circuitry minimizes noise and hum, delivering crystal-clear vinyl playback every time.
- • **Warm Analog Tube Sound:** Experience rich, smooth audio with high-quality vacuum tubes that you can swap to personalize your vibe.
- • **Plug & Play Convenience:** Includes RCA cable, power adapter, and user manual for seamless setup—no audiophile degree required.
- • **Customizable Gain Control:** Switch effortlessly between 39, 42, and 45 dB gain modes for perfect sound tailoring.
- • **Trusted Quality & Support:** Backed by an 18-month warranty and responsive customer service to keep your sound flawless.

## Overview

The Fosi Audio Box X2 is a compact, tube-based phono preamp designed for MM turntables, featuring three switchable gain settings (39, 42, 45 dB) and a DC 12V power supply. It delivers warm, low-noise analog sound with replaceable vacuum tubes for customizable audio character. Perfect for vinyl enthusiasts seeking affordable high-fidelity sound enhancement, it comes complete with cables, power adapter, and an 18-month warranty.

## Description

Fosi Audio Box X2 Phono Preamp for MM Turntable Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply : desertcart.in: Electronics

Review: Amazing Tube Based Phono Pre-Amp - Exceptional sounding. Tight accurate fast base & larger soundstage than my internal phono stage of the LP60 AT Turntable. It transformed the sound, corrected the center imaging well & just brought out a complete slightly more warmer sound. Equally detailed and warm at the same time. Exceptional device for someone who wants to try tube based pre amps for the first time for their vinyl player.
Review: Excellent - Bought this after lots of research. Decided to buy after watching YouTube video of cheapaudioman. Are perfect phono preamp for enhancing sound of vinyl records. Highly satisfied with the product. My vinyls sound extremely good. Happy with the selecter switch. Can choose the sound output suitable for my ear. Also highly recommended for vinyl lovers who cannot afford high end phono preamp. This one does a perfect job. My amplifier and vinyl player has inbuilt phono preamp. This one exceeded my expectations.

## 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 and ensure clear sound quality. Designed with a grounding post to protect your turntable.
- ❤Three switchable gain modes: 39, 42, and 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: 6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.
- ❤What You Get: Box X2 phono preamp x1, Vacuum tubes x2, RCA cable x1, power adaptor x1, user manual x1, our worry-free 18-month warranty, and friendly customer service.
- ❤Friendly customer service: support@fosiaudio.com.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XNTHHBP |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #92,501 in Electronics ( See Top 100 in Electronics ) #13 in Pre-Amplifiers |
| Brand | Fosi Audio |
| Country of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,037) |
| Date First Available | 17 November 2021 |
| Does it contain liquid? | No |
| Generic Name | Fosi Audio Box X2 Phono Preamp for MM Turntable Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply |
| Importer | support@fosiaudio.com |
| Includes Rechargeable Battery | No |
| Item Dimensions LxWxH | 11.8 x 9.8 x 3.3 Centimeters |
| Item Weight | 308 g |
| Item dimensions L x W x H | 11.8 x 9.8 x 3.3 Centimeters |
| Item model number | BoxX2 |
| Manufacturer | Fosi Audio |
| Maximum Supply Voltage | 12 Volts |
| Minimum Supply Voltage | 12 Volts (DC) |
| Model | BoxX2 |
| Mounting Hardware | 1 electronic component amplifier |
| Mounting Type | Freestanding |
| Number of Channels | 1 |
| Number of items | 1 |
| Packer | support@fosiaudio.com |
| Product Dimensions | 11.84 x 9.78 x 3.28 cm; 308.44 g |
| Tuner Technology | DAB |
| Voltage | 12 Volts (DC) |

## 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
- **Minimum Supply Voltage:** 12 Volts (DC)
- **Voltage:** 12 Volts (DC)

## Images

![Box X2 Phono Preamp for MM Turntable Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply - 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

### ⭐⭐⭐⭐⭐ Amazing Tube Based Phono Pre-Amp
*by R***O on 22 November 2025*

Exceptional sounding. Tight accurate fast base & larger soundstage than my internal phono stage of the LP60 AT Turntable. It transformed the sound, corrected the center imaging well & just brought out a complete slightly more warmer sound. Equally detailed and warm at the same time. Exceptional device for someone who wants to try tube based pre amps for the first time for their vinyl player.

### ⭐⭐⭐⭐⭐ Excellent
*by D***D on 1 January 2025*

Bought this after lots of research. Decided to buy after watching YouTube video of cheapaudioman. Are perfect phono preamp for enhancing sound of vinyl records. Highly satisfied with the product. My vinyls sound extremely good. Happy with the selecter switch. Can choose the sound output suitable for my ear. Also highly recommended for vinyl lovers who cannot afford high end phono preamp. This one does a perfect job. My amplifier and vinyl player has inbuilt phono preamp. This one exceeded my expectations.

### ⭐⭐⭐⭐⭐ Great little piece of equipment
*by N***T on 11 August 2024*

I was using an ART Pre DJ preamp foe a few years and just bought this for fun as the fosi preamp has had some great reviews. Great build quality though the tubes need a bit of care and effort to place them properly. This preamp has been a revelation in all senses. Played some of the best sounding LPs in my collection, Alan Parson iRobot MFSL and few other steely dan albums. The low end has improved significantly, great mid range and normal highs. Might try out new tubes at some point but totally satisfied currently.

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pe/products/394620872-box-x2-phono-preamp-for-mm-turntable-phonograph-preamplifier-gain](https://www.desertcart.pe/products/394620872-box-x2-phono-preamp-for-mm-turntable-phonograph-preamplifier-gain)

---

*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-23*