---
product_id: 243819127
title: "Douk Audio L1"
brand: "douk audio"
price: "AED 228"
currency: AED
in_stock: true
reviews_count: 13
category: "Douk Audio"
url: https://www.desertcart.ae/products/243819127-douk-audio-l1
store_origin: AE
region: United Arab Emirates
---

# Wide 5-24V DC input voltage Adjustable gain up to 20dB Multiple input/output interfaces Douk Audio L1

**Brand:** douk audio
**Price:** AED 228
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate Every Beat — Boost Your Audio Game with Precision & Power!

## Quick Answers

- **What is this?** Douk Audio L1 by douk audio
- **How much does it cost?** AED 228 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/243819127-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

- • **Versatile Use Cases:** Perfect for home stereo, mixers, karaoke, live events, and even gaming setups—boost your audio experience instantly.
- • **Powerful Signal Boost:** Delivers up to 20dB gain with a high output amplitude of ±12.5V to drive your amplifier or speakers effortlessly.
- • **Audiophile-Grade Sound:** NE5532P op amp with pluggable socket design offers customizable, ultra-low distortion, warm, and natural sound quality.
- • **Universal Compatibility:** Seamlessly connects with iPods, phones, TVs, and more via 3.5mm AUX, RCA, and 5-DIN inputs/outputs.
- • **Compact & Durable Design:** All-metal, mini form factor with electromagnetic interference shielding ensures noise-free, reliable performance anywhere.

## Overview

The Douk Audio L1 Mini Stereo Line Level Booster Amplifier is a compact, all-metal preamp designed to amplify low-volume audio signals by up to 20dB. Featuring multiple input/output options (3.5mm AUX, RCA, 5-DIN), adjustable gain, and a high-quality NE5532P op amp with a pluggable socket for DIY sound customization, it delivers clear, warm, and distortion-free audio. Its wide 5-24V DC input and robust build make it ideal for enhancing home stereos, mixers, karaoke setups, and live events, providing professional-grade sound amplification in a sleek, durable package.

## 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

Review: The Icing on the cake 🎂 - 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. ⭐️⭐️⭐️⭐️⭐️
Review: How to get this to work great with Pro Tips! - This product does exactly what it says it does, it will boost your audio line signal by around 20 decibels. My own measurement put this at 17.2 DB louder from 15 feet away before you start to get distortion. It can go up to around 19 DB or so but you get distortion. Even 15 db is plenty to make a stock stereo in a car really loud, but be warned you won't be pumping mass bass as the power output isn't there to drive your Fosgate 12s for example, obviously anyone installing quality equipment like that won't be using this thing. The product is cheap and has multiple inputs and outputs available (see pro tips below). It also comes with a USB-A power cable so you'll need a USB-A port available or otherwise supply your own power. Many of the complaints about this product seem to be curable but do require extra work and or parts. Pro Tips on how to get this to work great: 1. Take into account where you will be installing this. If you are installing this around unshielded cable, high voltage etc, because of its cheap nature, it will pick up a hum, this thing is not insulated at all really. It is best to keep it away from other devices and power it cleanly off a dedicated USB or power supply. See below for ideas how to fix if you get a hum. 2. The 3.5MM input will be priority and no other inputs will work at the same time if you use the 3.5MM input, however, if you use RCAs and the 5-Din this thing will take in both and mix them evenly (There is no way to to mix or boost one more than the other). The output is both 5-Din and RCA, you can use either or both at the same time. 3. Since this thing isn't driving that much power, I found even the cheapest cables work fine. Normally you want to use higher quality cables for the best sound with the least leakage but in this case we are going cheap, so even cheap cables will work. 4. If you are installing this in a car, you're probably like me and installing it on an old or stock in-dash stereo and those are horrible for grounding and will usually pick up a hum because of ground issues so here is: How to fix the dreaded hum that people complain about: First, you can try to ground your stereo better if you can. This can help, but if you are just hoping to plug it in and not mess around try a Ground Loop Isolator like this: https://www.desertcart.com/dp/B06XQYN77L?psc=1&ref=ppx_yo2ov_dt_b_product_details The linked isolator uses the 3.5MM input on the amp and takes in a 3.5MM connection. An over simplified explanation is that by using an inductor that then creates a magnetic field, a ground loop isolator can essentially force any differences in current (caused by a bad or different resistance ground) to be nullified because this is what causes the hum. Please realize you'll need to get the correct kind of isolator for your inputs and outputs. Just search Ground Loop Isolator here on desertcart and you'll find many. Since this isn't putting out that much power, cheap ones usually do the trick. Also keep in mind that there are two schools of thought and which one works for you depends on your situation: 1. Place the isolator between the head unit (a stereo for example) and the amp. In other words place the isolator on the input side of this amp. This is the typical way of doing things and works for the vast majority of cases in car audio although not all. 2. Place the isolator after the amp but right before the speakers if there are other components in the system like a game console, or another stereo component etc. This case is more specialized but you can pick up hum caused by the amplifier itself and it bleeds on the output side but this is less likely. The amp usually get's hum fed into it and you can eliminate that on the input side and the amp will output a clean signal. 3. Place an isolator on the input AND the output side. This is really rare and only happens in extreme instances where there are a lot of electronics at play causing problems for one another OR there are powered devices after the amp that are picking up hum from the combination of sources. In this case you'd add one on the input side as close to the amp as possible, and then one on the output side as close the speakers as possible. Good luck! This thing is a steal at the price for what you can do with it using a little know how.

## 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 | #30,583 in Electronics ( See Top 100 in Electronics ) #147 in Audio Component Amplifiers |
| Brand | Douk Audio |
| Brand Name | Douk Audio |
| Customer Reviews | 4.1 out of 5 stars 340 Reviews |
| Manufacturer | Douk Audio |
| Maximum Supply Voltage | 26 volts_of_direct_current |
| Minimum Supply Voltage | 26 volts_of_direct_current |
| Model | XZ-L1 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Number of Items | 1 |
| Output Power | 12.5 volts |
| Part Number | XZ-L1 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Douk Audio
- **Manufacturer:** Douk Audio
- **Maximum Supply Voltage:** 26 volts_of_direct_current
- **Minimum Supply Voltage:** 26 volts_of_direct_current
- **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 K***E on January 25, 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. ⭐️⭐️⭐️⭐️⭐️

### ⭐⭐⭐⭐⭐ How to get this to work great with Pro Tips!
*by C***C on April 12, 2024*

This product does exactly what it says it does, it will boost your audio line signal by around 20 decibels. My own measurement put this at 17.2 DB louder from 15 feet away before you start to get distortion. It can go up to around 19 DB or so but you get distortion. Even 15 db is plenty to make a stock stereo in a car really loud, but be warned you won't be pumping mass bass as the power output isn't there to drive your Fosgate 12s for example, obviously anyone installing quality equipment like that won't be using this thing. The product is cheap and has multiple inputs and outputs available (see pro tips below). It also comes with a USB-A power cable so you'll need a USB-A port available or otherwise supply your own power. Many of the complaints about this product seem to be curable but do require extra work and or parts. Pro Tips on how to get this to work great: 1. Take into account where you will be installing this. If you are installing this around unshielded cable, high voltage etc, because of its cheap nature, it will pick up a hum, this thing is not insulated at all really. It is best to keep it away from other devices and power it cleanly off a dedicated USB or power supply. See below for ideas how to fix if you get a hum. 2. The 3.5MM input will be priority and no other inputs will work at the same time if you use the 3.5MM input, however, if you use RCAs and the 5-Din this thing will take in both and mix them evenly (There is no way to to mix or boost one more than the other). The output is both 5-Din and RCA, you can use either or both at the same time. 3. Since this thing isn't driving that much power, I found even the cheapest cables work fine. Normally you want to use higher quality cables for the best sound with the least leakage but in this case we are going cheap, so even cheap cables will work. 4. If you are installing this in a car, you're probably like me and installing it on an old or stock in-dash stereo and those are horrible for grounding and will usually pick up a hum because of ground issues so here is: How to fix the dreaded hum that people complain about: First, you can try to ground your stereo better if you can. This can help, but if you are just hoping to plug it in and not mess around try a Ground Loop Isolator like this: https://www.amazon.com/dp/B06XQYN77L?psc=1&ref=ppx_yo2ov_dt_b_product_details The linked isolator uses the 3.5MM input on the amp and takes in a 3.5MM connection. An over simplified explanation is that by using an inductor that then creates a magnetic field, a ground loop isolator can essentially force any differences in current (caused by a bad or different resistance ground) to be nullified because this is what causes the hum. Please realize you'll need to get the correct kind of isolator for your inputs and outputs. Just search Ground Loop Isolator here on amazon and you'll find many. Since this isn't putting out that much power, cheap ones usually do the trick. Also keep in mind that there are two schools of thought and which one works for you depends on your situation: 1. Place the isolator between the head unit (a stereo for example) and the amp. In other words place the isolator on the input side of this amp. This is the typical way of doing things and works for the vast majority of cases in car audio although not all. 2. Place the isolator after the amp but right before the speakers if there are other components in the system like a game console, or another stereo component etc. This case is more specialized but you can pick up hum caused by the amplifier itself and it bleeds on the output side but this is less likely. The amp usually get's hum fed into it and you can eliminate that on the input side and the amp will output a clean signal. 3. Place an isolator on the input AND the output side. This is really rare and only happens in extreme instances where there are a lot of electronics at play causing problems for one another OR there are powered devices after the amp that are picking up hum from the combination of sources. In this case you'd add one on the input side as close to the amp as possible, and then one on the output side as close the speakers as possible. Good luck! This thing is a steal at the price for what you can do with it using a little know how.

### ⭐⭐⭐⭐ The good and not so good
*by J***M on December 24, 2024*

I purchased this item to use between my componet CD player and a Stereo Tube Power Amplifier. Because my componet Preamplifier is awaiting shipment of a new power switch. I thought this would be a good inturn solution allowing me to still listen to my CDs. The not so good. The unit has a set of RCA inputs and a stereo 3.5mm input jack. The signal chain goes from the RCA jacks through the 3.5mm input jack. Unfortunately the RCA jacks did'n't work on my unit meaning the internal contacts in the jack were not connecting properly. The 3.5mm jack did work and with the proper adapter cable and I was able to get it working in my system. It is a pretty cool little device. I did remove the covers to investigate the problem. I was surprised to see this. It will run from single 5Vdc USB power supply. Inside the unit is a small power inverter that takes that 5Vdc and generates a +/- 12Vdc isolated power supply to power the NE5532 Dual OpAmp. It provides 20 db of gain ( voltage gain of 10). It has a slight rolloff of -3db @40Hz which is not quite ideal. Otherwise the unit has excellent fidelity and for my purpose it works fine.

## 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.ae/products/243819127-douk-audio-l1](https://www.desertcart.ae/products/243819127-douk-audio-l1)

---

*Product available on Desertcart United Arab Emirates*
*Store origin: AE*
*Last updated: 2026-08-26*