--- product_id: 56513326 title: "AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output" brand: "s.m.s.l" price: "€ 320.02" currency: EUR in_stock: true category: "S.M.S.L" url: https://www.desertcart.hr/products/56513326-ad18-audio-hifi-stereo-amplifier-with-bluetooth-4-2-supports store_origin: HR region: Croatia --- # Bluetooth 4.2 + aptX + NFC 80W x 2 stereo power Digital bass & treble EQ AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output **Brand:** s.m.s.l **Price:** € 320.02 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your audio game — power, precision, and wireless freedom in one sleek amp! ## Quick Answers - **What is this?** AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output by s.m.s.l - **How much does it cost?** € 320.02 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/56513326-ad18-audio-hifi-stereo-amplifier-with-bluetooth-4-2-supports) ## Best For - s.m.s.l enthusiasts ## Why This Product - Trusted s.m.s.l brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Sound Tuning:** Customizable digital equalizer with patented SDB tech for dynamic bass and treble control tailored to your vibe. - • **Powerhouse Stereo Output:** Delivers crisp 80W per channel to energize your passive speakers with room-filling sound. - • **Compact Yet Robust Design:** Sleek aluminum chassis with advanced DSP and Class D efficiency keeps your setup stylish and cool under pressure. - • **Dual Independent Circuits:** Separate headphone and speaker amps ensure pristine audio clarity whether you’re plugged in or wireless. - • **Seamless Wireless Connectivity:** Bluetooth 4.2 with aptX and NFC pairing for effortless, high-quality streaming from all your devices. ## Overview The SMSL AD18 is a compact full digital Class D stereo amplifier delivering 80W per channel at 4 ohms, featuring versatile inputs including USB, coaxial, optical, analog, and Bluetooth 4.2 with aptX and NFC. It boasts dual independent circuits for speakers and headphones, a subwoofer output, and a digital equalizer with patented SDB sound enhancement. Engineered with Texas Instruments chips and advanced DSP technology, it offers high-fidelity sound with low distortion and strong anti-interference, making it ideal for powering passive speakers or headphones with professional-grade audio quality. ## Description desertcart.com: S.M.S.L AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output : Electronics ## Features - 【Digital Input】The SMSL AD18 has 6 input methods, USB, coaxial, analog, Bluetooth and two optical fibers, using two different chips for SPDIF and USB input. The USB comes from Texas Instruments' TAS1020B. The chip fully supports 24bit/96khz, and any excess will be automatically downsampled. SPDIF uses Cirrus Logic's CS8422. The chip can decode files up to 24bit/192khz, but can only decode up to 96kh on the AD18. - 【Bluetooth and NFC】The Class D amplifier allows you to Bluetooth BT4.2 Bluetooth input, Bluetooth supports apt-X, and easily connects Bluetooth via NFC, providing higher quality wireless playback for compatible , tablets and Android smartphones. - 【Two Independent Circuits】The S.MS.L ad18 bluetooth amp has two independent circuits, one for speakers and one for headphone output. It also has a subwoofer active subwoofer output, 80Wx2 amplifier output, with amplifier output, which can provide unparalleled stereo audio for speakers. 3.5mm headphone jack, the headphone amplifier - 【Bass and Treble Control】SMSL Audio Stereo Amplifier This all-in-one amplifier is also equipped with a digital equalizer with multiple functions (bass tuning, treble, etc.), built-in SMSL patented sound effect SDB, SDB can effectively improve the sound restoration, while dynamically adjusting the high and low sounds according to the current music signal. - 【SMSL AD18 chip】Full digital amplifier is part of the new generation of FDA all-digital amplifiers. It uses high-tech TAS5508C and TAS5342 chips using Texas Instruments (TI) digital pure path technology. The amplifier has the characteristics of "all-digital", compact design, high sound quality and high resolution, bringing a wonderful experience to music lovers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071JN7GXN | | Best Sellers Rank | #83,091 in Electronics ( See Top 100 in Electronics ) #510 in Audio Component Amplifiers | | Brand Name | S.M.S.L | | Customer Reviews | 4.3 4.3 out of 5 stars (990) | | Global Trade Identification Number | 00790996171746, 06970141852605 | | Included Components | amplifier | | Item Dimensions | 6.77 x 2.01 x 3.35 inches | | Item Weight | 1.3 Pounds | | Manufacturer | SMSL | | Maximum Supply Voltage | 24 Volts | | Model | AD18 | | Mounting Type | Coaxial,Plug Mount | | Number of Channels | 2 | | Output Power | 80 Watts | | Package Type Name | box | | Part Number | AD18 - Bluetooth | | Specification Met | CE, FCC | | UPC | 651312006145 790996171746 619191169320 612032784676 | | Unit Count | 1.0 Count | | Voltage | 220 Volts (AC) | | Warranty Description | 1 year | ## Product Details - **Item dimensions L x W x H:** 6.77 x 2.01 x 3.35 inches - **Manufacturer:** SMSL - **Maximum Supply Voltage:** 24 Volts - **Mounting Type:** Coaxial,Plug Mount - **Voltage:** 220 Volts (AC) ## Images ![AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output - Image 1](https://m.media-amazon.com/images/I/616WOahWKnL.jpg) ![AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output - Image 2](https://m.media-amazon.com/images/I/51H5fAOPEGL.jpg) ![AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output - Image 3](https://m.media-amazon.com/images/I/61eLJlUihhL.jpg) ![AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output - Image 4](https://m.media-amazon.com/images/I/614KuaOwkaL.jpg) ![AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output - Image 5](https://m.media-amazon.com/images/I/51KJZPJoqyL.jpg) ## Questions & Answers **Q: Were is the subwoofer connection?** A: Coax/opti1 is supposed to be a sub out also. I've heard earlier models did not function this way, but recently purchased units through Amazon should work. You'll need a 3.5 aux to rca cable for it to function I believe. I hooked up a powered sub to mine using the high level speaker inputs on the sub. **Q: What is the rated power output per channel at 8ohms, and the THD%?** A: The rated power output is 45w+45w @8ohm, THD + N = 0.04% **Q: When using the sub-out with a powered sub can the sub volume or levels be controlled via this unit?** A: Yes, and no. The SMSL's sub output level is variable, and raises/lowers in sync with the amps volume position, but you still have to set the master volume (for the sub) on the powered sub itself. I've got mine parked at about the 11 o'clock position, but results will vary depending on your setup. You will also need to find the crossover sweet spot on the subs low pass filter control. **Q: What is the frequency range of the input/output of the waveform?** A: It happens often ## Frequently Bought Together - S.M.S.L AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output - Micca RB42 Reference Bookshelf Speaker with 4-Inch Woofer and Silk Tweeter (Dark Walnut, Pair) - GearIT 14 AWG Speaker Cable with Banana Plugs 14Ga Banana Wire for Bi-Wire Bi-Amp HiFi Surround Sound --- ## 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.hr/products/56513326-ad18-audio-hifi-stereo-amplifier-with-bluetooth-4-2-supports](https://www.desertcart.hr/products/56513326-ad18-audio-hifi-stereo-amplifier-with-bluetooth-4-2-supports) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-16*