S.M.S.L - SU-X

Desktop Digital To Analog Converter (DAC)
Sale price₹ 94,999 Regular priceMRP: ₹ 99,999

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1. What is a Pre-Order product?
A Pre-order product is a product that we especially order for you from the brand. Once you place an order with us, we will order it from the brand for you.

2. How do I know when the product will be delivered?
There is a rough timeline on the product availability and once it has been confirmed with the brand, we will inform you.

3. Do you order the product from the brand as soon as I place the order?
We do not immediately order the product but add it in the upcoming order.

4. Will you be giving me updates?
Once we have ordered the product and have a confirmed timeline, we will give you an update.

5. I’d like to make changes to/cancel my order?
You can only cancel/make changes to your order until we place the order with the brand. Since the product is specifically being ordered for you, we will be unable to cancel/make changes once we order the product from the brand.

Free Shipping
7 Day Replacement Guarantee

In case you receive the S.M.S.L - SU-X with a manufacturing defect, please raise a return request within 7 days of delivery.

However, if you receive an incorrect / damaged / different product or one with missing accessories, please raise a return request within 24 hours of delivery. In case you receive a product with a missing, incorrect, or faulty accessory, you will be given a replacement accessory instead of the entire product.

Please make sure that the product is in the original packaging with all the accessories it came with. We'll also need an unboxing video and images of the parcel to investigate about the discrepancy. You may be asked to share images of the product and the packaging received for us to determine the damage or defect prior to approving the return request. The free replacement will be shipped only once the original order is returned.

A replacement will be issued only if:

- It is found to be defective
- It is determined that the product was not damaged while in your possession
- The product is not different from what was shipped to you
- The product is returned in original condition (with brand’s/manufacturer's box, MRP tag intact, user manual, warranty card and all the accessories therein)


Warranty & Services

Don't sweat it, this S.M.S.L - SU-X comes with a 1 Year warranty from S.M.S.L that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about S.M.S.L's warranty in India.

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1 Year of

Ideal for Audiophiles

These DAC & Amps are designed for discerning music lovers. If audio quality is important to you, a set of DAC & Amps like these would be ideal.

You can expect these DAC & Amps to present you with a refined listening experience. The audio quality exhibited by these DAC & Amps is a beautiful mix of musicality, technical brilliance and high precision.

These DAC & Amps deliver a spacious & open soundstage that makes you feel you are sitting at a live concert. Experience the magic and delve into pure sonic tranquility!

Ideal for
Desktop Use

Bluetooth with LDAC,
aptX-HD, aptX, SBC & AAC

Balanced Output

Dual DAC Chip

Pair with Laptop via USB

A majority of people use a laptop as the primary source device to listen to music or watch movies. Since the laptop is an essential part of the audio chain there are headphones and devices designed to work a laptop or computer system flawlessly. With the availability of USB connectivity, it becomes easier to pair various devices like an Amp, DAC or even headphones without worrying about drivers or any additional piece of software.

Connect With USB-B/C,
Optical,Coaxial, I²S & AES


Volume Controls

If your DAC & Amps include volume controls or volume rockers, you can easily change the volume with a button press or volume knob turn.

DAC & Amps that have volume controls make its operation incredibly simple; turn up the volume on your smartphone or your source devices and then change the volume on DAC & Amps to the desired level.

This design feature allows you to have complete control over the desired volume according to your listening preferences.


Introducing the SU-X, an MQA Audio DAC that brings a new dimension to your audio experience. With MQA Full Decoding, the SU-X employs a sophisticated process to clean up recordings and eliminate distortions caused during the conversion of analog sound to digital signals. This results in a true 3D sound field, providing an unparalleled auditory journey that transcends conventional listening.
Hi-Res Audio



Equipped with the latest flagship dual ES9039MSPRO DAC chips from ESS, the SU-X ensures powerful and precise audio decoding. The incorporation of XMOS XU-316 enhances USB capabilities, supporting up to 768kHz for PCM and DSD512. The self-developed CK-03 clock processing circuit significantly reduces clock jitter, contributing to a more stable and authentic audio reproduction.



The SU-X prioritizes a stable and reliable power supply system, utilizing two groups of linear power supplies for digital and analog units separately. With 21 high-end dual op-amps and a myriad of HiFi components, the SU-X delivers a meticulous audio experience. Specially designed low-noise regulated power supplies enhance efficiency and lower power consumption.



The SU-X boasts a sleek design with a full-fit color IPS display screen featuring tempered glass for a durable and visually appealing aesthetic. The high-quality aluminum alloy housing complements the overall elegance. The device is equipped with gold-plated input and output interfaces, ensuring top-notch connectivity. The inclusion of a remote control and full-featured remote adds convenience to the user experience.



With support for LDAC, APTX/HD, SBC, and AAC, the SU-X embraces Bluetooth technology for versatile connectivity. The device is not only a technological marvel but also holds the Japan Audio Association (JAS) Hi-Res certification, underscoring its commitment to delivering high-quality audio. The SU-X is a perfect blend of cutting-edge technology, precision engineering, and aesthetic finesse, promising an exceptional audio journey for enthusiasts.

1 Year Warranty

Don't sweat it, this S.M.S.L - SU-X comes with a 1 Year warranty from S.M.S.L that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about S.M.S.L's warranty in India.

Unveiling Cutting-Edge Audio Technology

Established in 2009, Foshan ShuangMuSanLin Technology Co. Ltd. is based in Shenzhen, China. S.M.S.L specializes in audio equipment including DACs, stereo headphone amplifiers, and power amplifiers. With an in-house R&D, manufacturing, and marketing team, S.M.S.L has built an extensive sales network covering 33 cities in China. Additionally, S.M.S.L has developed strategic partnerships with several countries, including Japan, Britain, Germany, Portugal, and Singapore. Their products are exported to over 30 countries worldwide and have garnered high customer satisfaction.

Explore Collection

"From entry-level to high-end, SMSL ensures every music lover can afford a well-performing DAC. Mentioning several successful seriesIt has a higher light transmittance highlights simplicity and beauty."

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Our customer support is available Monday to Saturday: 10am - 7pm.Average answer time: 2-3 hours

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