SMSL D100 Ultra-Compact High-Resolution DAC & Headphone Amp – ESS ES9081, Up to 400mW, 4.4mm+6.35mm Outputs, USB/Optical/Coaxial

Features

• ESS ES9081 Professional-Grade DAC – 8-channel parallel summing, up to 121dB dynamic range (line out)
• Full MQA Decoding on All Digital Inputs – USB, Optical & Coaxial (incl. MQA-CD playback)
• Up to 768kHz PCM, Native DSD512 & DoP Support via XMOS XU-316 True 32-bit Asynchronous USB
• Ultra-Low Distortion – THD+N as low as 0.00035% (line out)
• True Balanced Headphone Amplifier – up to 400mW, 6.35mm SE + 4.4mm Balanced, auto-matches headphones up to 600Ω
• Dedicated RCA Line Outputs (2Vrms) – connect active monitors or external amplifiers
• Dedicated 5V/2A Auxiliary Power Input – protects smartphones/tablets, prevents battery strain or device damage
• Independent Dual USB-C Ports – isolate PC power noise and phone battery drain
• Premium CNC Aluminum Chassis – gold-plated connectors + 1.66-inch fully laminated tempered glass display
• Ultra-Compact – 127×127×32mm, 338g / 0.745lbs
• JAS (Japan Audio Society) Hi-Res Certified

Overview

The S.M.S.L D100 is an all-in-one balanced DAC and headphone amplifier designed to streamline your desktop — replacing traditional multi-component stacks with a single, ultra-compact unit that delivers an audiophile-grade listening experience. It's built for music lovers and desktop audio enthusiasts who want professional-grade decoding and headphone driving power in a small, elegant footprint, without the clutter of separate boxes.

Powered by the ESS ES9081 DAC with 8-channel parallel summing and a true balanced amplifier circuit, the D100 drives headphones up to 600Ω with up to 400mW of noise-free output, while a dedicated RCA output lets you connect active monitors or external amplifiers. Multiple low-noise voltage regulators feed the sensitive analog stages, resulting in a dark background and a wide, holographic soundstage. Full MQA decoding across USB, Optical, and Coaxial inputs means master-quality streaming and MQA-CD playback from any connected source.

Housed in a precision CNC-machined aluminum chassis with gold-plated connectors and a 1.66-inch fully laminated tempered glass display, the D100 combines premium craftsmanship with an intuitive interface. Independent dual USB-C ports and a dedicated 5V/2A auxiliary power input isolate PC power noise and protect your smartphone or tablet from battery strain or damage. JAS Hi-Res certified, and at just 127×127×32mm and 338g, it fits neatly on any desktop.