--- product_id: 243819127 title: "Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control" brand: "douk audio" price: "331 zł" currency: PLN in_stock: true category: "Douk Audio" url: https://www.desertcart.pl/products/243819127-douk-audio-l1-mini-stereo-line-level-booster-amplifier-audio store_origin: PL region: Poland --- # 20dB max gain with ±12.5V output 3 input/output interfaces DIY-friendly pluggable op amp socket Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control **Brand:** douk audio **Price:** 331 zł **Availability:** ✅ In Stock ## Summary > 🎧 Elevate Every Note — Boost Your Audio Game Like a Pro! ## Quick Answers - **What is this?** Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control by douk audio - **How much does it cost?** 331 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/243819127-douk-audio-l1-mini-stereo-line-level-booster-amplifier-audio) ## Best For - douk audio enthusiasts ## Why This Product - Trusted douk audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Use Cases:** Perfect for home stereos, mixers, karaoke, live events, or office setups craving that extra volume edge. - • **Powerful Signal Boost:** Amplify your audio line by up to 20dB for crystal-clear, room-filling sound without distortion. - • **Universal Connectivity:** Seamlessly integrates with phones, TVs, computers & more via 3.5mm AUX, RCA, and 5-DIN ports. - • **Compact & Durable Design:** All-metal chassis with electromagnetic shielding ensures longevity and noise-free performance in any setup. - • **Customizable Sound Experience:** Swap out the NE5532P op amp easily to tailor your audio signature and indulge your inner audiophile. ## Overview The Douk Audio L1 Mini Stereo Line Level Booster is a compact, high-gain preamp designed to amplify low-volume audio sources by up to 20dB. Featuring multiple input/output options (3.5mm AUX, RCA, 5-DIN), a robust ±12.5V output voltage, and a DIY-friendly pluggable op amp socket, it delivers clear, warm sound with ultra-low distortion. Its durable all-metal build with electromagnetic shielding makes it ideal for diverse environments—from home audio systems to live stage events—ensuring enhanced volume and pristine audio clarity for professional and enthusiast users alike. ## Description Buy Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Mutiple input/output interfaces: with 3.5mm AUX/stereo RCA/5-DIN inputs and stereo RCA/5-DIN outputs, can be compatible with most low-volume audio sources such as ipod, ipad, phone, TV, MP3 player, potable CD player, computer, video game etc., and boost their output to the level needed to drive amplifier or speakers. - With built-in amplification and voltage boost circuit: adjustable gain to match better with different audio sources, support DC 5-24V wide input voltage that can share the power supply of amplifiers, while L1 can always work at a high voltage of 26V to provide ±12.5V high output amplitude and max 20dB high gain. - Unique design and HiFi clear sound: double-side PCB design, NE5532P op amp with pluggable socket design, convenient to change other op amps to enjoy different sound and bring much DIY fun for audiophiles. High-qaulity sealed potentiometer, with wide frequency bandwidth and excellent dynamic response, the sound is smooth and natural, warm and delicate with ultra-low distortion. - Mini size with exquisite appearance, compact and all-metal design for durability and shielding the electronics from electromagnetic interference with noise rejection. Perfect design in size and function, suitable for many scenarios to increase the output level, such as home stereo system, mixer or speaker setup, karaoke, audio recording, party, live stage event etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08L4WYSZ4 | | Best Sellers Rank | #33,078 in Electronics ( See Top 100 in Electronics ) #175 in Audio Component Amplifiers | | Brand Name | Douk Audio | | Customer Reviews | 4.1 4.1 out of 5 stars (329) | | Manufacturer | Douk Audio | | Maximum Supply Voltage | 26 Volts (DC) | | Minimum Supply Voltage | 26 Volts (DC) | | Model | XZ-L1 | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Output Power | 12.5 Volts | | Part Number | XZ-L1 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Douk Audio - **Manufacturer:** Douk Audio - **Maximum Supply Voltage:** 26 Volts (DC) - **Minimum Supply Voltage:** 26 Volts (DC) - **Mounting Type:** Surface Mount ## Images ![Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control - Image 1](https://m.media-amazon.com/images/I/71NwGrVGHtL.jpg) ![Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control - Image 2](https://m.media-amazon.com/images/I/91Bm9Ci0KGL.jpg) ![Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control - Image 3](https://m.media-amazon.com/images/I/81TT7HED+GL.jpg) ![Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control - Image 4](https://m.media-amazon.com/images/I/91JlY2M2XjL.jpg) ![Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control - Image 5](https://m.media-amazon.com/images/I/81Y5IE0xoPL.jpg) ## Questions & Answers **Q: My unit has stopped working. Mini input jack may be bad. How do I return for replacement? purchased 9/2/22** A: Try a new supply for cable to usb ie another high power charger. **Q: Can this amplify a video signal to allow splitting on multiple viewing screens ?** A: No. It is for audio only (and in my opinion, doesn't even do that well). You need a device that is specifically for video, like this: https://www.amazon.com/MT-VIKI-Splitter-Composite-Distribution-Amplifier/dp/B0882RHYTW/ This will take a composite video input, amplify it, and provide multiple outputs. It also does the same for the associated audio inputs. **Q: What are the exact dimensions of the power connector? The connector has 2 dimensions, the outer diameter and the inner pin diameter (5.5 mm x?)** A: I don't know. My Mini Stereo Line Level Amp stopped working the second week I owned it. I recommend buying something else. **Q: Will it give a full 2 volt line out RCA signal** A: So long as the input level is sufficient to create a 2V output signal, the answer is yes. If the input signal is not of sufficient amplitude it will/can not. ## Frequently Bought Together - Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black - AtNeDcVh Mini Small Stereo Audio preamplifier, Headphone Amplifier, Gain 20dB Phono Turntable Phonograph preamp, Dual op amp NE5532 with RCA 3.5mm Input to RCA 3.5mm Output --- ## 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.pl/products/243819127-douk-audio-l1-mini-stereo-line-level-booster-amplifier-audio](https://www.desertcart.pl/products/243819127-douk-audio-l1-mini-stereo-line-level-booster-amplifier-audio) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-10*