Audiophoria
Fosi Audio DS3 Portable DAC & Headphone Amplifier

Portable ES9039Q2M DAC/headphone amp with 4.4mm balanced output, PCM768/DSD512, dual gain and hardware 7.1 spatial audio.

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€99.00

Includes 20% VAT

Points earned with this purchase495 points (€4.95 value)

ColorSilver

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System Matching Guide

Optimal For:

Portable headphones, IEMs, laptops and gaming systems

Not Ideal For:

Very demanding full-size headphones needing high power

Power Consumption: little

Drive the Fosi Audio I5

Use the DS3's balanced 4.4mm output with the I5 Offline Version for a compact portable planar-headphone setup.

In StockFosi
Fosi Audio I5 open-back planar magnetic headphones front view

Fosi Audio I5 Offline Version Headphones

Headphones

€549.00

Highlights

DAC Platform
ESS ES9039Q2M + XMOS USB
USB Playback
PCM 32-bit/768kHz + native DSD512
Headphone Outputs
3.5mm single-ended + 4.4mm balanced
Output Power
Up to 220mW at 32Ī©
Gaming Audio
Hardware 7.1 spatial + FPS modes
USB Modes
UAC 2.0 Hi-Fi + UAC 1.0 gaming

FOSI AUDIO DS3 PORTABLE DAC & HEADPHONE AMPLIFIER

The Fosi Audio DS3 is a compact USB DAC and headphone amplifier designed for portable Hi-Fi listening, gaming and desktop use. It combines an ESS ES9039Q2M DAC with 3.5mm single-ended and 4.4mm balanced headphone outputs in a CNC-machined aluminium chassis weighing just 16g.

ESS ES9039Q2M HIGH-RESOLUTION DAC

At the heart of the DS3 is an ESS ES9039Q2M DAC paired with an XMOS USB interface. In UAC 2.0 mode it supports PCM playback up to 32-bit/768kHz and native DSD512, providing high-resolution USB audio from compatible computers, smartphones and other digital sources.

3.5MM & 4.4MM HEADPHONE OUTPUTS

The DS3 provides both a conventional 3.5mm headphone output and a balanced 4.4mm connection. Maximum output power reaches 220mW at 32Ī©, while selectable low and high gain settings allow better matching with different headphones and IEMs across the specified 16–300Ī© impedance range.

UAC 2.0 HI-FI & UAC 1.0 GAMING MODES

Two USB Audio Class modes give the DS3 distinct operating roles. UAC 2.0 provides full high-resolution audio support and access to eight digital filters, while UAC 1.0 expands compatibility with gaming hardware including supported consoles and portable gaming systems.

HARDWARE-LEVEL 7.1 SPATIAL AUDIO

In gaming mode, Fosi Audio's hardware-level spatial processing can accept native multichannel 7.1 audio and reconstruct it for two-channel headphone playback. Dedicated FPS and 7.1 effects are available directly from the DS3 without requiring PC software or drivers.

COMPACT USB-C DESIGN

The DS3 measures only 55 Ɨ 20 Ɨ 11mm and weighs 16g, making it easy to use with a phone, laptop or portable gaming device. Physical volume buttons also control gain, operating modes and digital-filter selection, while the unit remembers the previous volume setting between listening sessions.

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