--- product_id: 467818832 title: "BOX X2" brand: "fosi audio" price: "€ 175.99" currency: EUR in_stock: true reviews_count: 7 category: "Fosi Audio" url: https://www.desertcart.hr/products/467818832-box-x2 store_origin: HR region: Croatia --- # Low-noise circuitry with grounding post Tube preamp for warm, smooth sound 3 gain modes (39/42/45 dB) BOX X2 **Brand:** fosi audio **Price:** € 175.99 **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your vinyl vibes with warm, customizable sound perfection! ## Quick Answers - **What is this?** BOX X2 by fosi audio - **How much does it cost?** € 175.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/467818832-box-x2) ## 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 - • **Noise-Free Listening:** Advanced low-noise circuits and grounding post eliminate hum and interference. - • **Warm Analog Tube Sound:** Experience rich, smooth audio with high-quality vacuum tube technology. - • **Customizable Gain Control:** Switch between 39, 42, and 45 dB gain for perfect sound tailoring. - • **Plug & Play with Confidence:** Includes all essentials plus 18-month global warranty and 24-hour support. - • **DIY Audio Enthusiast’s Dream:** Compatible with multiple vacuum tube models for personalized sound upgrades. ## Overview The Fosi Audio Box X2 is a compact, high-fidelity tube phono preamp designed to convert MM turntable signals into clear, line-level audio. Featuring three switchable gain settings (39, 42, 45 dB), low-noise circuitry with grounding protection, and compatibility with various vacuum tubes, it delivers warm, analog sound ideal for audiophiles and vinyl enthusiasts. The package includes vacuum tubes, RCA cable, power adapter, and an 18-month global warranty, making it a reliable upgrade for any record player setup. ## Description Product description Fosi Audio BOX X2 Tube MM Phono Preamplifier Unleash rich, warm audio from your vinyl with the BOX X2. Tube MM Phono Preamplifier/Tube Preamp With RCA and 3.5mm AUX inputs, the BOX X2 offers flexibility to connect with various audio sources, making it a versatile addition to different systems. Power Adapter: 12V/1A; Adapter Input Voltage Range: AC 110V - 240V Output Voltage Level: 600 Mv @3mV 1kHz Frequency Response: Standard RIAA; SNR ≥ 98dB; THD ≤ 0.1% Clear Sound with Low Noise Circuitry Enjoy clear and detailed sound with advanced low-noise design, delivering an authentic experience 4-Level Gain Adjustment for Any Setup Adjust sound with 4 gain settings for precise customization on any amplifier or speaker setup. Minimalist Design for Any Space The BOX X2’s sleek and compact form easily fits into any audio setup, offering style and function. Replaceable Vacuum Tubes for Unique Tones Achieve warm, vintage sound or modern, clear tones by replacing vacuum tubes for personalized audio. Perfect Addition to Your Vinyl Setup Turn your home into a sound haven with BOX X2, enhancing the sound of your vinyl collection. Compatible with most MM phono turntables Easily connects to MM phono turntables, offering a variety of choices for vinyl equipment. 3.5mm AUX Input for Easy Connections Easily connect your phone, tablet, or other devices via the 3.5mm AUX input for more audio options. Enhance Focus with Clear, Crisp Sound Enjoy better audio quality in your workspace, helping you focus on tasks or relax with music. Product Advantages RCA for MM Turntable Preamp Ideal for MM cartridges, this mini preamp features precise RIAA equalization and low noise. It includes stereo RCA inputs and outputs. AUX for Tube Preamplifier Audiophile-grade amplification with low-noise operational preamps, plus a tube preamp and 3.5mm AUX input. Crafted from high-quality components. Elegant Vacuum Tube Design The visible vacuum tubes give a retro aesthetic while offering enhanced sound quality. Circuit Board Layout The circuitry is meticulously arranged to minimize interference and maximize sound quality. 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 | #39,499 in Electronics ( See Top 100 in Electronics ) #7 in Home Audio Preamplifiers | | Brand Name | Fosi Audio | | Customer Reviews | 4.5 out of 5 stars 3,240 Reviews | | Item Dimensions | 11.8 x 9.8 x 3.3 centimeters | | Item Weight | 0.68 Pounds | | 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) | | Maximum supply voltage | 12 Volts (DC) | | Minimum Supply Voltage | 12 Volts (DC) | | Minimum supply voltage | 12 Volts (DC) | | Model | BoxX2 | | Mounting Type | Freestanding | | Mounting type | Freestanding | | Number of Channels | 1 | | Output Power | 12 Volts | | Package Type Name | box | | Part Number | Box X2 | | Specification Met | Standard Riaa, Ce | | 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 (DC) - **Minimum supply voltage:** 12 Volts (DC) - **Voltage:** 12 Volts (DC) ## Images ![BOX X2 - Image 1](https://m.media-amazon.com/images/I/61aDUT1yyPL.jpg) ![BOX X2 - Image 2](https://m.media-amazon.com/images/I/71vDrgn91sL.jpg) ![BOX X2 - Image 3](https://m.media-amazon.com/images/I/71MS3FnlpnL.jpg) ![BOX X2 - Image 4](https://m.media-amazon.com/images/I/71JGjZRxtyL.jpg) ![BOX X2 - Image 5](https://m.media-amazon.com/images/I/71qw4Xvp4vL.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. ### ⭐⭐⭐⭐⭐ De buizen goed aandrukken als je andere buizen monteert *by M***B on 6 June 2026* ## 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.hr/products/467818832-box-x2](https://www.desertcart.hr/products/467818832-box-x2) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-16*