---
product_id: 161148110
title: "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"
brand: "fosi audio"
price: "19299 kr"
currency: ISK
in_stock: true
category: "Fosi Audio"
url: https://www.desertcart.is/products/161148110-fosi-audio-box-x2-phono-preamp-mini-stereo-audio-hi
store_origin: IS
region: Iceland
---

# Tube preamp for warm, smooth analog sound Includes DC 12V power supply & RCA cable 3 switchable gain modes (39/42/45 dB) 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

**Brand:** fosi audio
**Price:** 19299 kr
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your vinyl vibe with tube-powered clarity and control!

## Quick Answers

- **What is this?** 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 by fosi audio
- **How much does it cost?** 19299 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/161148110-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

## Key Features

- • **Turntable Protection:** Grounding post safeguards your vinyl investment by eliminating low-frequency noise.
- • **Precision Gain Control:** Customize your sound with 3 distinct gain settings for perfect volume and clarity.
- • **Plug & Play Convenience:** Complete package with power adapter, RCA cable, and user manual for effortless setup.
- • **Modular Sound Customization:** Easily swap vacuum tubes to tailor your audio signature and stand out in any listening session.
- • **Audiophile-Grade Tube Warmth:** Experience rich, smooth analog tones with high-quality vacuum tube technology.

## Overview

The Fosi Audio Box X2 is a compact, high-fidelity phono preamplifier designed for MM turntables, featuring three switchable gain modes (39, 42, 45 dB) and premium vacuum tube technology for warm, analog sound. It includes a grounding post to reduce noise, a 3.5mm AUX input, and comes with essential accessories like RCA cables and a DC 12V power supply, making it a plug-and-play upgrade for audiophiles seeking customizable, high-quality sound.

## Description

Buy 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: Preamplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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
- Applicable Vacuum Tube Model: The compatible vacuum tube models are 6K4, 6J1, 6J4, GE5654, 6AK5, 66, etc. To make changes to your stereo system yourself, simply swap out the vacuum tubes. Consider that distinct tubes produce various sounds
- Package Content: You will get 1 x Box X2 phono preamp, 2 x vacuum tubes, 1 x RCA cable, 1 x power adaptor, and 1 x user manual

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XNTHHBP |
| Best Sellers Rank | #12,677 in Electronics ( See Top 100 in Electronics ) #6 in Audio Component Preamplifiers |
| Brand | Fosi Audio |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,426) |
| Item Weight | 0.65 kg |
| Manufacturer | Fosi Audio |
| Mfr Part Number | Box X2 |
| Model Number | BoxX2 |
| Number of Items | 1 |
| Unit Count | 1 Count |

## Product Details

- **Item dimensions L x W x H:** 4.66 x 3.85 x 1.29 inches
- **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, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear, Pre-Amplifier for MM Turntable Phonograph and Record Player, with DC 12V Power Supply - Image 1](https://m.media-amazon.com/images/I/61aDUT1yyPL.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.

## 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 Iceland*
*Store origin: IS*
*Last updated: 2026-08-29*