--- product_id: 483417882 title: "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" brand: "fosi audio" price: "210.17 DT" currency: TND in_stock: true reviews_count: 7 category: "Fosi Audio" url: https://www.desertcart.tn/products/483417882-box-x1-phono-preamp-for-mm-turntable-mini-stereo-audio store_origin: TN region: Tunisia --- # 3.5mm headphone & RCA outputs 12V DC power adapter included 70dB SNR ultra-low noise 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 **Brand:** fosi audio **Price:** 210.17 DT **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your vinyl game with flawless sound and sleek style! ## Quick Answers - **What is this?** 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 by fosi audio - **How much does it cost?** 210.17 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/483417882-box-x1-phono-preamp-for-mm-turntable-mini-stereo-audio) ## 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 - • **Plug & Play Powerhouse:** Includes a high-efficiency 12V DC adapter ensuring stable, energy-saving performance every session. - • **Compact Rugged Elegance:** Sleek black anodized steel housing fits any modern setup while protecting your investment. - • **Dual Output Flexibility:** Simultaneously connect RCA line out and 3.5mm headphone jack for versatile listening setups. - • **Audiophile-Grade Precision:** Accurate RIAA equalization and ≤0.08% THD deliver warm, smooth sound that elevates your vinyl experience. - • **Crystal-Clear Vinyl Revival:** Transforms MM turntable signals into pristine line-level audio with ultra-low noise for flawless playback. ## Overview The Fosi Audio Box X1 is a compact, ultra-low noise MM phono preamp designed to convert turntable signals to line-level outputs with high fidelity. Featuring a 70dB signal-to-noise ratio, ≤0.08% total harmonic distortion, and precise RIAA equalization, it supports both RCA and 3.5mm headphone outputs simultaneously. Powered by a reliable 12V DC adapter and housed in a durable anodized steel case, the Box X1 delivers audiophile-grade sound quality and versatile connectivity for modern vinyl enthusiasts. ## Description Product description BOX X1 MM Phono Preamplifier Our Story Fosi Audio was founded with a simple goal: build products that sound great and make people want to listen to music every day. We design and sell many hi-fi audio products on the market. We pursue your perfect music journey. Product Parameters Input interface: MM turntable input, Grounding post input, 12V DC input Output Interface: 3.5MM headphone output, RCA output Output: Active(powered) speakers, Headphone, Amplifier Product Adapter Input Voltage Range: AC 100 - 240V DC Input Voltage: 12V Output Voltage Level: 2V max (P-P) at 10K Ohms SNR: 70dB; THD: ≤0.08% @ 1kHz and 3mV Frequency Response: Standard RIAA Product Weight: 0.35lb / 161g Product Dimensions: 3.94×0.98×2.17 inch Unique Power Switch Button designed and assembled by Fosi Audio from high-quality components unique switch button design; great, warm, smooth-sounding phono preamp. 3.5MM Headphone Output Audiophile-grade amplification modules offer outstanding performance with their low-noise audio operational preamplifiers. Enjoy high-quality music with headphones through the 3.5 mm headphone output. MM Turntable Preamp Suitable for moving-magnet (MM) cartridges Precise RIAA equalization Connect the turntable to the MM inputs and ground. 12V/1.5A Power Adapter BOX X1 comes with high-efficiency and energy-saving high-quality power supply Review: Fosi ✌️ - Fosi good products Review: It’s good - It served the purpose ## Features - 【Converts MM Turntable Signals】: BOX X1 compact ultra-low noise phono preamp converts phono signals to line-level signals. Designed with a grounding post to protect your turntable. - 【MM Phono Preamplifier with DC12V Power Adapter】: Output Voltage Level: 2V max (P-P) at 10K Ohms, SNR: 70dB, THD: ≤0.08% @ 1kHz and 3mV, Frequency Response: Standard RIAA. Equipped with DC12V high-quality power supply. - 【RCA Output & 3.5MM Headphone Output】: BOX X1 supports MM turntable input, 3.5MM headphone output, and RCA line output for powered speakers. You can connect a power amplifier through the 3.5MM AUX or RCA output, then connect the passive speakers and enjoy high-quality music with headphones through the 3.5 mm headphone output. Note: RCA line output and AUX headphone output can be output simultaneously. - 【Amplify Vinyl Records to Interface with Your Home Stereo System】:The built-in low noise phono preamp circuitry is highly accurate and precisely conforms to the RIAA standard. Housed in a steel black anodized case, the BOX X1 gives you flawless audio reproduction in a rugged and reliable package. - 【What You Get】: BOX X1 phono preamp x1, 12V power adapter x1, User manual x1, our worry-free 24-month warranty, and friendly customer service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08TLRPMDC | | Best Sellers Rank | #29,975 in Electronics ( See Top 100 in Electronics ) #7 in Home Audio Preamplifiers | | Brand Name | Fosi Audio | | Customer Reviews | 4.4 out of 5 stars 1,925 Reviews | | Item Dimensions | 18 x 13 x 6 centimeters | | Item dimensions L x W x H | 18 x 13 x 6 centimeters | | Manufacturer | Fosi Audio | | Maximum Supply Voltage | 240 Volts | | Maximum supply voltage | 240 Volts | | Minimum Supply Voltage | 12 Volts (DC) | | Minimum supply voltage | 12 Volts (DC) | | Model | BOX X1 | | Mounting Type | Freestanding mounting | | Mounting type | Freestanding mounting | | Number of Channels | 1 | | Package Type Name | cardboard box | | Part Number | BOX X1 | | Specification Met | RoHS | | Voltage | 12 Volts | ## Product Details - **Item dimensions L x W x H:** 18 x 13 x 6 centimeters - **Manufacturer:** Fosi Audio - **Maximum supply voltage:** 240 Volts - **Minimum supply voltage:** 12 Volts (DC) - **Voltage:** 12 Volts ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61N2wiBdvfL.jpg) ## 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 ### ⭐⭐⭐⭐⭐ Fosi ✌️ *by F***L on 11 August 2025* Fosi good products ### ⭐⭐⭐⭐ It’s good *by M***. on 17 March 2024* It served the purpose ### ⭐⭐⭐⭐⭐ Article qui sauve les oreilles *by L***E on 2 May 2026* Le Fosi Audio donne une autre dimension d'écoute pour mes vinyles. Super pour les platines qui ne possède pas d'ampli je recommande. ## 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 --- ## 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.tn/products/483417882-box-x1-phono-preamp-for-mm-turntable-mini-stereo-audio](https://www.desertcart.tn/products/483417882-box-x1-phono-preamp-for-mm-turntable-mini-stereo-audio) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-13*