Fosi Audio DS1
- 2 reviews
- Fosi Audio
Description
1. High-Fidelity Audio in Your Pocket
The Fosi Audio DS1 is a premium portable USB DAC and headphone amplifier designed to transform your smartphone, tablet, or laptop into a high-end audio player. By bypassing the inferior internal sound cards of standard devices, the DS1 delivers a clean, high-resolution sonic experience that satisfies the most demanding audiophiles.
2. Key Features & Technologies
Dual DAC Architecture for Superior Clarity
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Dual ES9318 Chips: At the core of the DS1 are two high-performance ESS Sabre ES9318 DAC chips. This dual-mono configuration ensures exceptional channel separation, a wider soundstage, and ultra-low total harmonic distortion.
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True High-Res Decoding: Supports native DSD512 and PCM up to 32-bit/768kHz, allowing you to enjoy master-quality audio files with absolute precision and no detail loss.
Powerful Balanced & Single-Ended Outputs
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Dual Headphone Jacks: Features both a 3.5mm single-ended and a 4.4mm balanced output. The balanced port provides significantly higher power and a lower noise floor, making it capable of driving demanding full-sized headphones.
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Exceptional Driving Power: Despite its miniature size, the DS1 pumps out up to 220mW @32Ω (Balanced), ensuring your headphones have the headroom they need for dynamic and punchy sound.
Premium Build & Universal Compatibility
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CNC Aluminum Enclosure: The sleek, sandblasted aluminum alloy body not only looks professional but also acts as a shield against electromagnetic interference (EMI).
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Plug-and-Play Simplicity: Compatible with Android, iOS, Windows, and macOS. The detachable USB-C cable design allows for easy switching between different devices and cable upgrades.
3. Technical Specifications
| Component | Specification |
| DAC Chip | Dual ESS Sabre ES9318 |
| Decoding Support | PCM 32Bit/768kHz, DSD512 |
| Output Power | 220mW @32Ω (Balanced), 120mW @32Ω (Single-ended) |
| Input Interface | USB Type-C |
| Output Interface | 3.5mm SE, 4.4mm Balanced |
| SNR / THD+N | 120dB / 0.0006% |
| Compatibility | Windows/Mac/Android/iOS |
4. Why Choose the DS1?
The Fosi Audio DS1 bridges the gap between portability and professional performance. It is an essential tool for music lovers who want a significant audio upgrade without carrying a bulky desktop setup. With its balanced architecture and top-tier ESS chips, the DS1 offers a level of musicality and transparency that is rare at this price point.
Specifications
- Weight: 200gr
- Usage: Indoor & outdoor
Pros and cons
- Sustainably produced
- Ideal for everyday use
Productdetails
- Small USB DAC headphone amplifier with optimized HiFi audio architecture ensures High-Resolution sound quality. The portable USB DAC DS1 is compatible with various systems like Android/iOS/Windows/Mac, compatible with the latest devices: phones/computers/tablets/laptops/audio players, etc. Wonderfully versatile when commuting in the home, office, or gaming.
- DS1 adopts ESS Technology ES9038Q2M DAC Chips supporting DSD 512 and 32Bit/768kHz PCM, features best-in-class specifications, and high-power outputs capable of supporting the most demanding of headphones with impedance above 200Ω.
- Low Noise Floor Clean Sound for True High-Fidelity. DS1 features abundant power with a high signal-to-noise ratio, low distortion, and almost 0 noise.
- 3.5MM+4.4MM Dual Headphone Outputs are both Powerful enough to easily drive most headphones. The traditional 3.5mm single-ended headphone output is widely compatible with most headphones, and a 4.4mm balanced headphone output for a more detailed audio experience. Specifications: THD+N<0.0006%, output power up to 220mw, SNR>120dB, Noise<1.6UV.
- What You Get: DS1 USB DAC Headphone Amp x1, Type-C to Type-C cable x1, USB-A to USB-C Converter x1, user manual x1, our worry-free 24-month warranty, and friendly customer service. NOTE: The new version of the DS1 headphone amp optimized the volume control which is independently controlled from the audio source device.
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Balanced, Warm, and Natural Sound
Fosi Audio DS1 DAC Headphone Amplifier
ln addition to being balanced and warm, the timbre is able to bring peace to the listener. it
has a rather daring sound texture and feels comfortable. Your ears will enjoy pure music with
natural timbre, rich low frequency, transparent medium frequency, and high frequency.
for Smartphones/Laptop/PC/Music Players
Fosi Audio DS1 DSD512 HiFI DAC Headphone Amplifier
Frequency response:20Hz-20kHz (±0.5dB)
*THD+N:SE:0.00069(320}:; BAL:0.0019(320); S/N: 2120 dB
Recommended headphone impedance:16-300Ω(SE);16-300Ω(BAL)
Dual headphone outputs: 3.5mm single-ended and 4.4mm balanced headphone jack;
The DS1 DAC headphone amplifier builds in an oscillator to get a stable signaland good quality audio sound.
Technical Specifications
| Category | Details |
|---|---|
| Model | DS1 |
| Output Power | 120mW(SE); 220mW(BAL) |
| Terminating Impedance | 16-300Ω |
| Input Mode | USB Type C |
| Output Mode | 3.5MM + 4.4MM Headphone |
| Frequency Range | 20Hz-20kHz (±0.5dB) |
| THD | 0.0006%(32Ω SE); 0.001%(32Ω BAL) |
| SNR | ≥120 dB |
| Sampling Rate | 32bit/768kHz |
| DSD | DSD64/128/256/512 |
| DAC Chipset | ES9038Q2M |
| Material | Tin Alloy |
| Device Weight | 38g |
Technical Specifications
| Category | Details |
|---|---|
| Fosi Audio DS1 | 1 |
| Type-C to Type-C cable | 1 |
| USB-A to USB-C Converter | 1 |
| User Manual | 1 |
FAQs
How does the Fosi Audio DS1 transform the mobile listening experience?
The Fosi Audio DS1 acts as a professional-grade external DAC and amplifier that bypasses the limited audio hardware of standard smartphones and laptops. By processing digital audio signals externally, it significantly reduces electromagnetic interference and noise. This provides a cleaner background, enhanced dynamic range, and much greater clarity, allowing you to enjoy high-resolution streaming services as they were meant to be heard.
Can the DS1 drive professional high-impedance headphones?
Despite its portable form factor, the DS1 is a powerhouse. It features a robust amplification circuit designed to drive everything from high-sensitivity In-Ear Monitors (IEMs) to demanding full-sized studio headphones. It provides the necessary current and voltage to maintain control over headphone drivers, ensuring deep, impactful bass and crisp high frequencies even with power-hungry gear.
Does the Fosi Audio DS1 support balanced audio connections?
Yes, the DS1 is equipped with dual headphone outputs: a standard 3.5mm single-ended port and a 4.4mm balanced port. The 4.4mm balanced output is a favorite among audiophiles as it offers higher power output and superior channel separation. This results in an even wider soundstage and more precise instrument imaging compared to traditional single-ended connections.
Is the Fosi Audio DS1 compatible with the latest USB-C devices?
Absolutely. The DS1 features a universal USB-C interface, making it "plug-and-play" compatible with a vast range of devices, including Android smartphones, tablets, macOS, and Windows PCs. It is also an ideal companion for the latest iPhone 15 and 16 series. Because it adheres to UAC 2.0 standards, no manual driver installation is required for most modern operating systems.
Does the DS1 support high-resolution audio formats like DSD?
Yes, the DS1 is engineered for the high-res era. It natively supports DSD (Direct Stream Digital) and high-bitrate PCM formats, allowing it to decode ultra-high-definition audio files without downsampling. When paired with high-quality sources like Tidal, Qobuz, or local FLAC files, the DS1 ensures a bit-perfect audio transmission for a truly transparent listening experience.
