--- product_id: 374052515 title: "Douk Audio L1" brand: "douk audio" price: "₩157450" currency: KRW in_stock: true reviews_count: 5 url: https://www.desertcart.kr/products/374052515-douk-audio-l1 store_origin: KR region: South Korea --- # 20dB max gain boost Wide 5-24V DC input NE5532P op amp with socket Douk Audio L1 **Brand:** douk audio **Price:** ₩157450 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate every note with precision power and style! ## Quick Answers - **What is this?** Douk Audio L1 by douk audio - **How much does it cost?** ₩157450 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/374052515-douk-audio-l1) ## 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 - • **Compact & Durable:** All-metal, noise-shielded mini chassis built to withstand daily use and reduce interference. - • **Multi-Scenario Use:** Ideal for home stereo, karaoke, live events, and recording setups—never miss a beat. - • **Powerful Amplification:** Adjustable gain up to 20dB to perfectly elevate any low-volume audio source. - • **Versatile Connectivity:** Seamlessly compatible with 3.5mm AUX, RCA, and 5-DIN inputs/outputs for all your devices. - • **Audiophile-Ready Design:** Swap op amps easily with a pluggable NE5532P socket for personalized sound tuning. ## Overview The Douk Audio Mini Stereo Line Level Booster Amplifier Preamp XZ-L1 delivers up to 20dB gain with versatile input/output options including 3.5mm AUX, RCA, and 5-DIN. Featuring a high-voltage 26V supply and a pluggable NE5532P op amp, it offers customizable, ultra-low distortion sound in a compact, all-metal design perfect for audiophiles and professionals seeking clean, powerful audio amplification across multiple devices and scenarios. ## 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 | #100,851 in Electronics (See Top 100 in Electronics) #289 in Home Audio Amplifiers | | Brand Name | Douk Audio | | Customer Reviews | 4.1 4.1 out of 5 stars (316) 4.1 out of 5 stars | | Manufacturer | Douk Audio | | Material Type | metal | | Maximum Supply Voltage | 26 Volts (DC) | | Minimum Supply Voltage | 26 Volts (DC) | | Model | XZ-L1 | | Mounting Type | Surface Mount | | Number Of Channels | 2 | | Number Of Items | 1 | | Output Power | 12.5 Volts | | Package Type Name | Retail Box" or "Shipping Box | | Part Number | XZ-L1 | | Specification Met | GSO, USB | | Unit Count | 1.0 Count | ## Product Details - **Voltage:** 26 Volts (DC) - **Manufacturer:** Douk Audio - **Maximum supply voltage:** 24 Volts - **Minimum supply voltage:** 5 Volts (DC) - **Mounting type:** Surface Mount ## Images ![Douk Audio L1 - Image 1](https://m.media-amazon.com/images/I/71NwGrVGHtL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The Icing on the cake 🎂 *by on Reviewed in the United States 25 January 2026* Ignore all the reviews that says that this device requires a separate USB power source from a phone charger etc… these newer units are shipping out with their own DC power that plugs directly into an outlet. Most of the reviews that say that you have to find your own power supply are completely outdated and should be taken down. It’s truly misleading to a lot of potential buyers in 2026. You can also ignore the reviews that say that the unit doesn’t have proper markings to tell you where the gain or volume is. Take a look at my pictures and you’ll see that the updated models come with their own power supply and proper markings so you can perfectly dial in your volume/gain. I needed this unit to boost the signal on my Buttkicker BKA-1000N amplifier in order increase the power going to my Buttkicker LFE that I installed in my couch. The factory signal or voltage from my “subwoofer out” port is naturally too weak to send a strong enough signal to the to the Buttkicker BKA-1000N Class D amplifier. Even when the amplifier is maxed out, I would have to significantly increase my volume in order to start feeling the vibrations from the buttkicker LFE. Now that I added the Douk Audio line level booster 🗣️THAT PROBLEM IS SOLVED!!! I was very nervous that it will introduce a hum or buzzing noise like some other reviews have stated, but I could gladly say that this unit caused no issues in my home theater system. It simply did exactly what it was advertised to do. IT WILL BOOST any weak RCA line level signal to the proper volume or power level that you are looking for. All the people that made complaints about the older version of the Douk Audio line L1 should definitely consider purchasing the newer model of this unit. It’s definitely worth $40 bucks You can’t beat that price and it doesn’t feel cheap at all.. It’s made out of all metal and feels extremely solid. The knob feels well dampened and turns smoothly. If this device was manufactured from a well-known brand, it would have cost at least $100-$200. I would give this device 10 stars if I could. All the negative reviews are from people that purchased the old models OR they don’t know how to use the device properly. Douk Audio listened to their customers and made this new model flawless. I’m just not sure why THE COMPANY IS NOT ADVERTISING THE NEW FEATURES OF THE UPDATED MODEL. I would give this device 10 stars if I could. Excellent device, excellent sound, excellent build quality, and excellent price. ⭐️⭐️⭐️⭐️⭐️ ### ⭐ 増幅された音が歪む。 *by on Reviewed in Japan 18 November 2023* 今回の商品は、非常に良い中古品との評価だった。少し前に同製品を新品購入したが、不具合があって返品した。中古品として価格が下がり、非常に良いとの評価で出品されていたので購入したものの、送られてきた商品は前回返品した商品そのものであった。製品箱もなく、あり合わせの段ボールの小箱に入れれれていたので、開封した時点ですぐに分かった。箱には数字の「17」がマジック書きされていた。前回のものと全く同様。返品商品を「非常に良い」と評価し、再販するのはいかがなものだろうか、、、？？？ ### ⭐⭐⭐⭐⭐ Sickaz *by on Reviewed in Canada 4 January 2026* It did the job for Me boosted the signal to almost double the strength only problem is is that it introduces a little bit of white noise, but to be honest, I have an art clean box pro and that was introducing white noise as well, so it might not be this product. It might just be my amplifier regardless of that. I have a wireless RCA transmitter and I put this before the transmitter so the wireless signal completely cut out the white noise if anyone is running into that issue try to go wireless you lose a little bit of signal when you go wireless, but this boostsit right back up anyway anyways ## 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.kr/products/374052515-douk-audio-l1](https://www.desertcart.kr/products/374052515-douk-audio-l1) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-09-15*