S.M.S.L D1 High-Resolution Desktop Audio DAC
The S.M.S.L D1 represents an exceptional balance of compact design and high-performance digital-to-analog conversion, combining state-of-the-art silicon with uncompromising audio engineering. Designed for discerning audiophiles and space-saving desktop setups, it delivers master-grade resolution, ultra-low distortion, and an expansive soundstage that brings every nuance of your music to life.
ROHM BD34352EKV DAC Architecture
At the heart of the D1 is ROHM’s advanced BD34352EKV audio-grade DAC chip, meticulously tuned to achieve exceptional sonic clarity and a charming, distinctive timbre. Driven by the third-generation XMOS XU-316 processor, this architecture delivers ultra-low distortion metrics and precise signal processing for an exceptionally pure and transparent audio reproduction.
High-Resolution Audio Decoding
The D1 provides comprehensive hardware support for the industry's most demanding formats. It natively decodes PCM audio up to 32-bit/768kHz and Direct Stream Digital up to DSD512 via its high-speed USB interface, allowing listeners to stream or play back studio-original master recordings precisely as the artist intended.
Built-In High-Performance Power Filtering System
To ensure clean and stable operation, the D1 incorporates a specialized built-in power filtering system. This design allows the unit to achieve peak performance and an ultra-low noise floor using standard USB bus power alone, making it exceptionally convenient and reliable for modern desktop use.
Premium Anodized CNC Aluminum Construction
The ultra-compact chassis is precision-milled from a solid block of high-grade aluminum using advanced anodized CNC machining and features a clean, modern touch-button control panel. This robust enclosure not only offers a sleek aesthetic suited for any desktop environment but also provides exceptional structural rigidity and shielding.
Comprehensive Digital Connectivity
Designed as a flexible digital audio hub, the D1 offers a reliable array of digital inputs and high-quality analog outputs:
USB-C Input: Powered by XMOS XU-316 supporting high-resolution PCM and native DSD.
Optical & Coaxial Inputs: Ideal for connecting televisions, game consoles, or digital transports up to 24-bit/192kHz.
RCA Analog Output: Delivers standard pristine 2Vrms line-level output to active speakers or amplifiers.
About SMSL
Foshan ShuangMuSanLin Electronics Co., Ltd. (SMSL) is an established manufacturer in high-fidelity desktop audio. Specializing in digital-to-analog converters, balanced headphone amplifiers, and power amps, SMSL has built a global reputation for combining rigorous bench performance, clean industrial design, and practical feature sets across various price tiers.
Technical Specifications
Input: USB / Optical / Coaxial
Output: RCA
THD+N: 0.00038% (-108dB)
Dynamic Range: 119dB
SNR: 119dB
USB Compatibility: Windows 7/8/8.1/10/11, Mac OS X, Linux
Sampling Rate (USB): PCM up to 32-bit/768kHz, DSD up to DSD512
Sampling Rate (Optical/Coaxial): PCM up to 24-bit/192kHz
Power Supply: USB 5V (Bus powered)
Dimensions: 101 × 33 × 90 mm
Weight: 201.1g
Q&A
What DAC chip does the SMSL D1 use?
It uses ROHM's advanced BD34352EKV audio-grade DAC chip.
Does the D1 require an external power supply?
No, it features a built-in high-performance power filtering system that operates entirely off standard USB bus power.
What is the maximum sampling rate supported via USB?
It supports PCM audio up to 32-bit/768kHz and native DSD up to DSD512.
What outputs are available on the unit?
It features a standard stereo RCA line-level output pair.
What digital inputs does it include?
It includes USB-C, optical, and coaxial digital inputs.
