SMSL D1 Hi-Res Audio DAC - Compact Desktop DAC for PC/TV

In this review the SMSL D1 is presented as a compact, serious desktop DAC for users who want clear, neutral playback without spending a fortune. The unit is built around ROHM's BD34352EKV chip and aims squarely at audiophiles, content creators, and anyone who needs reliable high-resolution conversion for a desk or home system. The single biggest reason to buy is its support for extremely high sample rates and DSD512 alongside a precise, welltuned circuit that produces a natural, detailed soundstage.

Key Features

• ROHM BD34352EKV DAC: Delivers faithful digital-to-analog conversion for clear, natural tonality across bass, midrange, and treble.
• High-resolution support: Handles PCM up to 32-bit/768kHz and DSD512 for compatibility with the most demanding Hi-Res sources.
• Multi-input flexibility: USB, optical and coaxial inputs make it easy to connect phones, tablets, PCs, TVs, or DVD players without extra adapters.
• XMOS XU-316 firmware: Modern USB support improves reliability and compatibility with macOS and Linux (Windows driver available).
• Aluminum unibody and touch controls: Compact anodized CNC chassis with touch buttons keeps the unit stable and blends into desktop or cabinet setups.
• Included USB-A to C cable: Lets users connect directly to a computer and benefit from the internal power filtering for improved high-frequency clarity.

Who It's For

The SMSL D1 suits desktop audiophiles, home media users, and pro hobbyists who need a compact DAC with high sample-rate support and clean, neutral presentation. It is a strong choice for PC/Mac owners who want reliable USB input and the ability to feed a separate amplifier or active speakers via RCA outputs.

Those who want an integrated headphone amplifier with high output or a fully analog-warm coloration should look elsewhere; similarly, users who require plug-and-play Windows operation without installing drivers should note that Windows may need the vendor driver for full feature access.

Pros & Cons

Pros

• Very good sonic transparency and balanced frequency response thanks to the ROHM chip and careful tuning.
• Excellent high-resolution format support including DSD512 and PCM 32-bit/768kHz for future-proofing and studio use.
• Sturdy CNC aluminum chassis with touch controls and compact footprint suitable for desk or shelf.
• Multiple digital inputs and a supplied USB-A to C cable simplify connections to modern devices.

Cons

• Some listeners report the sound is natural but not extremely analog-warm, which may disappoint those seeking tube-like coloration.
• Windows users may need to install a driver to access full USB functionality.

Specifications

DAC chip	ROHM BD34352EKV
Max PCM sampling	32-bit / 768kHz
DSD support	Up to DSD512
Inputs	USB / Optical / Coaxial
Outputs	RCA analog output
SNR / THD+N	SNR 126dB / THD+N 0.00038%
Chassis	Anodized CNC aluminum unibody with touch controls

Our Verdict

The SMSL D1 is a well-engineered, compact desktop DAC that delivers high-resolution capability and a neutral, detailed sound at a reasonable price for enthusiasts and pros. It is especially good value for users who need multi-input flexibility and clean conversion for PC, TV, or small home systems, though Windows users should be prepared to install a driver for full functionality.

Frequently Asked Questions

Does it support DSD playback?
Yes, the D1 supports native DSD up to DSD512 when paired with a compatible player and connection.

Will it work with macOS or Linux?
Yes, macOS and Linux can use the USB input without additional drivers; Windows may require a driver for full functionality.

Can it power headphones directly?
The D1 provides RCA outputs for external amplification; it is not primarily a high-power headphone amp, so use with a separate amp for demanding headphones.