--- product_id: 649577672 title: "SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC" brand: "fanmusic" price: "1580 zł" currency: PLN in_stock: true reviews_count: 5 category: "Fanmusic" url: https://www.desertcart.pl/products/649577672-smsl-su-1-mqa-mqa-cd-audio-decoder-ak4493s-xu316 store_origin: PL region: Poland --- # USB asynchronous transmission up to 768kHz/32Bit AKM AK4493S DAC chip for ultra-low distortion Supports MQA & MQA-CD for studio-quality sound SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC **Brand:** fanmusic **Price:** 1580 zł **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your sound game—because your music deserves the studio treatment! ## Quick Answers - **What is this?** SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC by fanmusic - **How much does it cost?** 1580 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/649577672-smsl-su-1-mqa-mqa-cd-audio-decoder-ak4493s-xu316) ## Best For - fanmusic enthusiasts ## Why This Product - Trusted fanmusic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **MQA & MQA-CD Certified:** Unlock authentic high-res studio recordings directly from your CD player or digital sources—hear what the artists intended. - • **Universal Compatibility:** Seamlessly connects with Windows, Mac, Linux, Android, and iOS devices for versatile, plug-and-play hi-res audio. - • **Energy Efficient & Ready:** Consumes less than 5W with standby power under 0.1W—premium sound that’s kind to your wallet and the planet. - • **Compact Powerhouse Design:** Sleek and lightweight (195g), this DAC fits effortlessly into any setup without sacrificing performance or style. - • **Studio-Grade Sound Clarity:** Experience pristine audio with distortion below 0.00013%, elevating every note to audiophile perfection. ## Overview The SMSL SU-1 is a high-resolution DAC featuring the latest AKM AK4493S chip, delivering ultra-low distortion and dynamic range of 121dB. It supports MQA and MQA-CD decoding, restoring studio-quality sound from digital and CD sources. Compatible with major OS platforms and multiple input types (USB, optical, coaxial), it offers asynchronous USB transmission up to 768kHz/32Bit and DSD512 playback. Compact and energy-efficient, the SU-1 transforms everyday audio into an immersive hi-fi experience favored by audiophiles and professionals alike. ## Description Specification: Input: USB/Optical/Coaxial Output level:2.0Vrms THD+N:0.00013%(-117dB) Dynamic range:121dB SNR:121dB USB transmission:Asynchronous transmission USB compatibility: Windows 7/8/8.1/10 /11 Mac 0S X10.6 above、Linux Bit depth: USB:1Bit-32Bit Optical/coaxial:6Bit-24Bit Sampling rate: USB PCM 44.1KHz-768KHz/DSD 2.8224-22.5792MHz MQA:384kHz Power consumption<5W Standby power<0.1W Size: 96 x 27 x 78mm (WxHxD) Weight:195g/0.43lbs Review: Broke after 10 days of use, but now fixed - Update: March 13, 2024 (previously 1 star rating, now I give it 5 star rating). After several exchange of messages between Leaudio seller and myself, it was suggested that I install SMSL SU-1 driver from smsl-audio.com official website, which I did. To my surprise that fixed my DAC! Now I am finally able listen to music from my PC sent to SU-1 by USB cable, which is connected to my SMSL A300 by RCA. It seems the driver installation to my Windows 10 fixed whatever issue I was having with SU-1 DAC. As result of this, I'm updating the previous 1-star rating to 5 stars. As for the sound quality from SU-1, as stated below, it's an improvement over my SMSL A300 amplifier by 15 - 20%, but more specifically, it is the sonic clarity and separation that are the most notable. Though a minimal audio improvement over my amplifier's internal DAC, the sound clarity and instrument separation are noteworthy, and for that I give a 5-star rating. Also, through this DAC, vocals seem to be slightly more forward and clearer. March 6, 2023, initial review, I gave it 1 star rating due to the DAC's failure after 10 days of use. Bought this SMSL SU-1 DAC in November 2023, but I couldn't use it since I didn't have a pair of RCA cables to connect it to my class D SMSL A300 amplifier that I purchased from desertcart at the same time. The DAC was on Black Friday sale, so I figured to try it with my new amplifier. Fast forward to Feb 2024, I finally ordered a pair of CESS 163-4i RCA cables, connected the DAC to my amplifier. The SMSL SU-1 DAC improved the quality by about 15% over my SMSL A300 internal DAC. I used the DAC on and off for about 10 days, then today it simply failed on me. It simply fell dead silent while playing a music file from my PC (PC to USB cable to SMSL SU-1 DAC to RCA cables to SMSL A300 amplifier). I tried another RCA port in the back of my SMSL A300 amplifier, but that too didn't work. The DAC simply does not work at all. I also tried powering down my amp completely, unplug RCA cables between the DAC and the amp, then powered both up again, and toggled between various input options in the DAC to no avail (USB, coaxile, and optical just in case the internal circuit's connectivity had glitched and that toggling among input sources might reset it). The source-light LED still functions on the DAC, but I get absolutely no audio signal going into my amplifier. Heck, I even rebooted my PC just to see if that may be causing an issue, but it was futile. After 2 hours of wrestling with the connections and toggling between input sources and settings, I gave up. Now I'm back to connecting my PC directly to my SMSL A300 amplifier by USB cable, which works fine. As far as SMSL SU-1 DAC is concerned, it was a decent DAC for the price (while it worked). However, the unit I got simply failed after about 10 days of usage. I'd instantly return it for a refund, but the Jan 31 deadline return date is closed, so sadly it's not an option for me. A good-sounding, affordable DAC with a high quality DAC chip, but in my case, I must have received a lemon, so quality control seems questionable. Maybe it's just bad luck on my part, but I still wouldn't recommend this DAC to anyone. You'd be better off to spend a bit more money on a high quality DAC with its own power supply built in. Update On March 11, 2024 I emailed with photo attachments of the failed SMSL SU-1 DAC to support@shenzhenaudio.com. According to their site, they'll honor their product warranty up to 6 months with either a repair, replacement, or refund if their product proves to be defective. Hopefully they'll reply in a timely manner with a resolution. As others may encounter a product failure after the desertcart's 30-day free return policy, I'll post further updates for reference. Update, March 11, 2024, 8 hours later, shenzhenaudio.com support staff replied my to my email, asked for the desertcart purchase invoice and order number. I forwarded them the necessary information. According to their reply, they'll forward my case to their desertcart Support Team. I hope this will be resolved asap as I'll need to either get a replacement DAC or get a refund and buy another DAC, so for now I'm stuck in a limbo with 70 bucks tied up in a failed DAC unit. For now I'm stuck to using the internal DAC of my SMSL A300 amplifier, which is quite ok, but I did like the somewhat improved audio fidelity of SMSL SU-1 DAC. Update March 12, 2024. Got a reply from Leaudio requesting detailed info on what's wrong with my SMSL SU-1 DAC. I forwarded an account of how it simply stopped working while playing music from my laptop connected to it by a USB. Also forwarded 3 photos of the DAC. Hope this matter will be dealt with either a refund, replacement, or repair soon, because at this point, the DAC is useless. Review: Roll of the dice for better sound. - Dac seems to built well. It feels like a quality item in hand. The recent reviews on desertcart are spectacular. For me it didn’t work. No sound. When I tried to download the drivers for my device listed on the SMSL page they would not install? There is no customer service no. Thank goodness for desertcarts easy return policy. As a footnote when adding a third party dac into an existing audio environment a lot can go wrong. From wiring to software conflicts and so forth. When searching online for other buyers with similar problems I found very few posts as SMSLs products seem to work pretty well out of the box. ## Features - USB supports MQA:1.Clean up the recording 2.Encapsulate the sound - Support MQA CD:CD Player + MQA- Enabled DAC,Your CD player's digital output (optical or coaxial) can be fed to an MQA de coder. The MQA decoder can restore the original high-resolution signal heard in the studio and confirm it, using the authentication signature.SMSL SU-1 support MQA CD. - AKM AK4493S :SU-1 utilizes the latest AKM DAC chip,AK4493S, for achieving a distortion lower than 0.00013% - USB In:Compatible with Windows 7/8/8.1/10/11 (driver is required),Mac 0S X10.6+, Linux(driverless), Android, i0s ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C1Y7C9HH | | Best Sellers Rank | #1,114,525 in Electronics ( See Top 100 in Electronics ) #148 in Hi-Fi DA Converters | | Brand | Fanmusic | | Brand Name | Fanmusic | | Compatible Devices | Speaker, Headphone | | Customer Reviews | 4.4 out of 5 stars 1,663 Reviews | | Included Components | SU-1*1, Type-A to Type-C USB Cable*1 | | Interface | Coaxial, USB | | Interface Type | Coaxial , USB | | Item Dimensions L x W | 9.6L x 7.8W Centimeters | | Item Weight | 195 Grams | | Manufacturer | S.M.S.L | | Material Type | Copper | | Model Number | SU-1 | | Mounting Type | Coaxial , Plug Mount | | Number Of Pins | 8 | | Number of Channels | 2 | | Number of Pins | 8 | | Part Number | SU-1 | | Product Dimensions | 9.6L x 7.8W Centimeters | | Smart Home Compatibility | Not Smart Home Compatible | | Unit Count | 1 Count | ## Product Details - **Brand:** Fanmusic - **Interface Type:** Coaxial, USB - **Mounting Type:** Coaxial,Plug Mount - **Number of Channels:** 2 - **Number of Pins:** 8 ## Images ![SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC - Image 1](https://m.media-amazon.com/images/I/21AA7hVlMAL.jpg) ![SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC - Image 2](https://m.media-amazon.com/images/I/41YWk85tRmL.jpg) ![SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC - Image 3](https://m.media-amazon.com/images/I/61Fh5P3jQHL.jpg) ![SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC - Image 4](https://m.media-amazon.com/images/I/51VXAcljlAL.jpg) ![SMSL SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC - Image 5](https://m.media-amazon.com/images/I/61OH+PEhn8L.jpg) ## Questions & Answers **Q: When I hook it up to play there is music for a second or two and then no music for a second or two. This repeats itself over and over again. Ideas?** A: I do not have that problem with this device, HOWEVER, I do have that very same problem with another SMSL dac ( M500 MKII), and I have not been able to figure out why this happens. I do not use Windows, and I only play wav files with Linux based software, and Linux operating system. Make your own conclusions. **Q: how come the output voltage is so low when I connect it to the optical on my TV? I thought the output was suppose to be 2 Vrms.** A: only tried whit coaxial in rca out **Q: Without a separate power input, how much faster does the battery drain on the cell phone?** A: It consumes very low energy. I don't use it via USB. I haven't tested it. **Q: I'd like to listen to one of those new MQA-encoded CDs. Will the optical output of my legacy CD player pass the MQA-encoded signal to this SMSL?** A: Yes, because the SMSL is reading, converting the signal and your legacy CD player is functioning as a transport only. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Broke after 10 days of use, but now fixed *by W***K on 6 March 2024* Update: March 13, 2024 (previously 1 star rating, now I give it 5 star rating). After several exchange of messages between Leaudio seller and myself, it was suggested that I install SMSL SU-1 driver from smsl-audio.com official website, which I did. To my surprise that fixed my DAC! Now I am finally able listen to music from my PC sent to SU-1 by USB cable, which is connected to my SMSL A300 by RCA. It seems the driver installation to my Windows 10 fixed whatever issue I was having with SU-1 DAC. As result of this, I'm updating the previous 1-star rating to 5 stars. As for the sound quality from SU-1, as stated below, it's an improvement over my SMSL A300 amplifier by 15 - 20%, but more specifically, it is the sonic clarity and separation that are the most notable. Though a minimal audio improvement over my amplifier's internal DAC, the sound clarity and instrument separation are noteworthy, and for that I give a 5-star rating. Also, through this DAC, vocals seem to be slightly more forward and clearer. March 6, 2023, initial review, I gave it 1 star rating due to the DAC's failure after 10 days of use. Bought this SMSL SU-1 DAC in November 2023, but I couldn't use it since I didn't have a pair of RCA cables to connect it to my class D SMSL A300 amplifier that I purchased from Amazon at the same time. The DAC was on Black Friday sale, so I figured to try it with my new amplifier. Fast forward to Feb 2024, I finally ordered a pair of CESS 163-4i RCA cables, connected the DAC to my amplifier. The SMSL SU-1 DAC improved the quality by about 15% over my SMSL A300 internal DAC. I used the DAC on and off for about 10 days, then today it simply failed on me. It simply fell dead silent while playing a music file from my PC (PC to USB cable to SMSL SU-1 DAC to RCA cables to SMSL A300 amplifier). I tried another RCA port in the back of my SMSL A300 amplifier, but that too didn't work. The DAC simply does not work at all. I also tried powering down my amp completely, unplug RCA cables between the DAC and the amp, then powered both up again, and toggled between various input options in the DAC to no avail (USB, coaxile, and optical just in case the internal circuit's connectivity had glitched and that toggling among input sources might reset it). The source-light LED still functions on the DAC, but I get absolutely no audio signal going into my amplifier. Heck, I even rebooted my PC just to see if that may be causing an issue, but it was futile. After 2 hours of wrestling with the connections and toggling between input sources and settings, I gave up. Now I'm back to connecting my PC directly to my SMSL A300 amplifier by USB cable, which works fine. As far as SMSL SU-1 DAC is concerned, it was a decent DAC for the price (while it worked). However, the unit I got simply failed after about 10 days of usage. I'd instantly return it for a refund, but the Jan 31 deadline return date is closed, so sadly it's not an option for me. A good-sounding, affordable DAC with a high quality DAC chip, but in my case, I must have received a lemon, so quality control seems questionable. Maybe it's just bad luck on my part, but I still wouldn't recommend this DAC to anyone. You'd be better off to spend a bit more money on a high quality DAC with its own power supply built in. Update On March 11, 2024 I emailed with photo attachments of the failed SMSL SU-1 DAC to support@shenzhenaudio.com. According to their site, they'll honor their product warranty up to 6 months with either a repair, replacement, or refund if their product proves to be defective. Hopefully they'll reply in a timely manner with a resolution. As others may encounter a product failure after the Amazon's 30-day free return policy, I'll post further updates for reference. Update, March 11, 2024, 8 hours later, shenzhenaudio.com support staff replied my to my email, asked for the Amazon purchase invoice and order number. I forwarded them the necessary information. According to their reply, they'll forward my case to their Amazon Support Team. I hope this will be resolved asap as I'll need to either get a replacement DAC or get a refund and buy another DAC, so for now I'm stuck in a limbo with 70 bucks tied up in a failed DAC unit. For now I'm stuck to using the internal DAC of my SMSL A300 amplifier, which is quite ok, but I did like the somewhat improved audio fidelity of SMSL SU-1 DAC. Update March 12, 2024. Got a reply from Leaudio requesting detailed info on what's wrong with my SMSL SU-1 DAC. I forwarded an account of how it simply stopped working while playing music from my laptop connected to it by a USB. Also forwarded 3 photos of the DAC. Hope this matter will be dealt with either a refund, replacement, or repair soon, because at this point, the DAC is useless. ### ⭐⭐⭐⭐⭐ Roll of the dice for better sound. *by M***Z on 28 February 2026* Dac seems to built well. It feels like a quality item in hand. The recent reviews on Amazon are spectacular. For me it didn’t work. No sound. When I tried to download the drivers for my device listed on the SMSL page they would not install? There is no customer service no. Thank goodness for amazons easy return policy. As a footnote when adding a third party dac into an existing audio environment a lot can go wrong. From wiring to software conflicts and so forth. When searching online for other buyers with similar problems I found very few posts as SMSLs products seem to work pretty well out of the box. ### ⭐⭐⭐⭐⭐ product ok *by K***S on 15 May 2026* product ok ## Frequently Bought Together - S.M.S.L SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC - TOSLINK – Optical Audio Cable – 3ft – Designed in Germany – Fiber Optic Cable for Soundbar, SPDIF Digital Optical Audio Cord – for Sound Bars, Stereo Systems, amps, Xbox One or PS4 – by CableDirect - SMSL PO100 PRO MQA DDC XMOS XU316 Digital to Analog Audio Converter Type-C USB Input IIS/Optical/Coaxial Output Mini Portable USB Interface for Phone/PS5/Switch/TV --- ## 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/649577672-smsl-su-1-mqa-mqa-cd-audio-decoder-ak4493s-xu316](https://www.desertcart.pl/products/649577672-smsl-su-1-mqa-mqa-cd-audio-decoder-ak4493s-xu316) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-19*