--- product_id: 300855416 title: "BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included" brand: "fosi audio" price: "₨30744" currency: LKR in_stock: true reviews_count: 13 url: https://www.desertcart.lk/products/300855416-box-x1-phono-preamp-for-mm-turntables-with-3-5mm store_origin: LK region: Sri Lanka --- # Ultra-low noise, THD ≤0.08% 2V max output voltage 12V DC power supply included BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included **Brand:** fosi audio **Price:** ₨30744 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your vinyl game with precision and style! ## Quick Answers - **What is this?** BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included by fosi audio - **How much does it cost?** ₨30744 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/300855416-box-x1-phono-preamp-for-mm-turntables-with-3-5mm) ## 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 - • **Rugged Elegance:** Encased in durable black anodized steel, built to last and impress in any modern setup. - • **Plug & Play Confidence:** Includes 12V power adapter and 24-month warranty—hassle-free setup and peace of mind guaranteed. - • **Seamless Vinyl Revival:** Effortlessly converts phono signals to crystal-clear line-level audio for flawless playback. - • **Audiophile-Grade Clarity:** Experience pristine sound with ultra-low noise and a 70dB signal-to-noise ratio that preserves every detail. - • **Flexible Listening Modes:** Simultaneously use RCA outputs and 3.5mm headphone jack for ultimate audio versatility. ## Overview The Fosi Audio BOX X1 is a compact, ultra-low noise phono preamp designed for MM turntables, delivering up to 2V output with exceptional audio fidelity (THD ≤0.08%, SNR 70dB). Featuring versatile RCA and 3.5mm headphone outputs, it ensures flexible connectivity. Housed in a durable anodized steel case and powered by a reliable 12V DC adapter, it offers seamless integration and a 24-month warranty for confident, high-quality vinyl playback. ## Description Fantastic Phono Preamplifier Creates Warm, Smooth Sounding. Input: Turntable, Grounding post, 12V DC input Output: Headphone 3.5MM, RCA DC Input Voltage: 12V Output Voltage Level: 2V max (P-P) at 10K Ohms BOX X1 BOX X2 BOX X4 BOX X5 P3 P4 ZP3 Discover Fosi Audio - Your HiFi Solution! We're a tech-driven brand, crafting innovative audio products around the world. Our vision: Affordable excellence for each consumer. Our mission: Redefining HiFi with cost-effective innovations. Join Fosi Audio on this unique audio journey! Mini Preamp with 3 RCA Inputs with 3-Level Adjustable Gain 3/6/9 dB, Bass and Treble Control Tube Headphone Amp Preamp, Quad-Tube Dual-Stage Amplification Balanced Preamp for Home Audio with HPF High Pass Filter and Tone Control Mini Preamplifier Home Audio for MM & MC Cartridge Turntable, 4-Level Adjustable Gain Phono Preamp Headphone Amplifier/Preamplifier with JAN 5654W Vacuum Tubes Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear As people who also love music and were looking for the right amplifier, we found that traditional amplifiers were too bulky and we introduced compact amplifiers with the same impactful sound quality that immediately impressed people. Fosi Audio have something for every audiophile, from vacuum tubes and solid-state to monoblock, multichannel, or stereo configurations. After seeing how much our customers love our products, they are able to enjoy even better sound. We also feel a sense of inner satisfaction. ## Features - ✅Hassle-Free Playback - The BOX X1 is an ultra-low noise phono preamp that seamlessly converts phono signals into line-level signals, featuring a grounding post for optimal turntable protection. - ✅Exceptional Audio Quality - Equipped with a high-quality DC12V power supply, this MM phono preamplifier offers reliable and stable performance, delivering an output voltage level of 2V max (P-P) at 10K Ohms, an SNR of 70dB, and THD of ≤0.08% @ 1kHz and 3mV, while conforming precisely to the standard RIAA frequency response. - ✅Versatile Connectivity - The phono preamp provides MM turntable input, RCA line output for powered speakers, and a 3.5MM headphone output, allowing simultaneous use of RCA line output and AUX headphone output for maximum flexibility. - ✅Perfect Integration - Designed for vinyl record enthusiasts, this phono preamp ensures accurate sound replication with its built-in low-noise phono preamp circuitry, conforming precisely to the RIAA standard, and encased in a durable black anodized steel case for reliable and rugged audio transmission. - ✅What's Included - With the BOX X1 phono preamp, you receive a 12V power adapter, user manual, worry-free 24-month warranty, and friendly customer service. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08TLRPMDC | | Best Sellers Rank | 1,493 in Electronics & Photo (See Top 100 in Electronics & Photo) 1 in Home Audio Preamplifiers | | Brand | Fosi Audio | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (1,961) 4.5 out of 5 stars | | Included Components | Power Supply | | Item Dimensions | 18 x 13 x 6 centimetres | | Manufacturer | Fosi Audio | | Manufacturer Part Number | BOX X1 | | Material | steel | | Maximum Supply Voltage | 12 Volts (DC) | | Minimum Supply Voltage | 12 Volts | | Model Number | BOX X1 | | Mounting Type | Freestanding | | Number Of Channels | 1 | | Number Of Items | 1 | | Number Of Packs | 1 | | Package Type Name | box | | Product Warranty | 24 months | | Specification Met | RoHS | | Voltage | 12 Volts | ## Product Details - **Item dimensions L x W x H:** 18 x 13 x 6 centimetres - **Manufacturer:** Fosi Audio - **Maximum supply voltage:** 12 Volts (DC) - **Minimum supply voltage:** 12 Volts - **Voltage:** 12 Volts ## Images ![BOX X1 Phono Preamp for MM Turntables with 3.5MM Headphone and RCA Output, Mini Phono Preamplifier with Power Switch for Phonograph/Record Player, DC 12V Power Adapter Included - Image 1](https://m.media-amazon.com/images/I/512kyOt5zaL.jpg) ## Available Options This product comes in different **Colour Name** options. ## 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 ### ⭐⭐⭐⭐⭐ Great Little Box *by on Reviewed in the United Kingdom 26 April 2024* Bought the Fosi Audio Box X1 as it seemed to be highly regarded as a good budget preamp option and so far it works perfectly! It's quite compact and very simple to use (only has an on/off button and then inputs/outputs at the back) and paired with my Edifier R1280T active speakers (would highly recommend those too if you don't want to break the bank) it sounds incredible! ### ⭐⭐⭐⭐⭐ Great *by on Reviewed in the United Kingdom 18 June 2026* For the price, a perfect little preamp that functions really well and is small enough to not be in the way. Works well with my turntable and Edifyer speakers. ### ⭐⭐⭐⭐ Simple, Good-Sounding Phono Preamp with Easy Bluetooth Setup *by on Reviewed in the United Kingdom 23 February 2026* The Fosi Audio BOX X1 with an MM turntable, feeding a Bluetooth transmitter which then connects to my Roth VA4 active speakers. Setup was very easy and worked first time.The turntable goes into the BOX X1, then out to a UGREEN Bluetooth transmitter (set to transmit mode), which pairs wirelessly with the speakers. No apps, no screens, no messing around, just buttons and LEDs. Once paired, it reconnects automatically.Sound quality is better than I expected for the price. The BOX X1 is quiet, with no noticeable hum or noise in my system, and it does a perfectly good job of phono amplification. Over Bluetooth, the sound remains clear and balanced. Yes, Bluetooth is technically lossy, but in real listening terms the loss is mostly academic. I wouldn’t notice it unless I was directly A/B testing against a wired connection.There is a small amount of Bluetooth delay, but in a vinyl-only setup this doesn’t matter at all. It has no impact on listening enjoyment.Overall, this is a very good value phono preamp. Paired with a modern Bluetooth transmitter, it’s a practical and affordable way to get vinyl playing wirelessly without sacrificing sound quality in any meaningful way.Pros• Easy to set up• Clean, quiet sound• Great value for money• Works well with Bluetooth transmittersCons• MM cartridges only• Bluetooth is technically lossy (but not an issue in practice)I’d happily recommend this to anyone looking for a simple, budget-friendly phono preamp. ## 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.lk/products/300855416-box-x1-phono-preamp-for-mm-turntables-with-3-5mm](https://www.desertcart.lk/products/300855416-box-x1-phono-preamp-for-mm-turntables-with-3-5mm) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-08-16*