Fosi Audio DS2 Portable Hi-Res DAC & Amp
The Fosi Audio DS2 is an upgraded portable USB-C DAC and headphone amplifier designed for audiophiles who demand pure, high-resolution sound anywhere. Supporting up to PCM 32bit/384kHz and DSD256 decoding, this compact powerhouse delivers crystal-clear audio with remarkable detail and dynamics.
Equipped with dual Cirrus Logic CS43131 flagship DAC chips, the DS2 ensures pristine sound quality with ultra-low noise (1μV), THD as low as 0.0001%, and a 130dB signal-to-noise ratio. With up to 170mW output per channel at 32Ω, it can effortlessly drive both low- and high-impedance headphones through its 3.5mm single-ended and 4.4mm balanced outputs, immersing you in a true Hi-Fi listening experience.
The DS2 is plug-and-play, requiring no complex setup. Its 60-step independent volume control with memory function allows smooth, precise adjustments for any listening situation. With broad compatibility, it works seamlessly with iPhone 15 series, iPad Pro, Android smartphones, Windows laptops, and Mac computers, making it an excellent choice as both a portable DAC/amp and an external USB sound card.
Crafted from CNC-machined metal, the DS2 is both durable and stylish, offering a premium feel in hand. Compact and lightweight, it’s perfect for on-the-go use without compromising performance. Backed by a 12-month warranty and responsive customer support, the Fosi Audio DS2 is built to deliver Hi-Res audio with reliability and style.
Model: DS2
DAC Chipset: Dual Cirrus Logic CS43131
Output Power: 128mW (3.5mm SE), 170mW (4.4mm BAL)
Output Impedance Range: 16Ω–300Ω
Input Mode: USB Type-C
Outputs: 3.5mm Single-Ended, 4.4mm Balanced
Frequency Response: 20Hz–20kHz (±0.5dB)
THD: <0.0002%
SNR: ≥130dB
SINAD: >109dB
Noise Floor: <1μV
Sampling Rate Support: PCM 32bit/384kHz, DSD256
Compatibility: iOS, Android, Windows, Mac
Weight: 3.2 oz
1 × Fosi Audio DS2 2024 DAC & Amp
1 × Type-C to Type-C Cable
1 × USB-C to USB-A Converter
1 × User Manual
Key Specifications
Model: DS2
DAC Chipset: Dual Cirrus Logic CS43131
Output Power: 128mW (3.5mm SE), 170mW (4.4mm BAL)
Output Impedance Range: 16Ω–300Ω
Input Mode: USB Type-C
Outputs: 3.5mm Single-Ended, 4.4mm Balanced
Frequency Response: 20Hz–20kHz (±0.5dB)
THD: <0.0002%
SNR: ≥130dB
SINAD: >109dB
Noise Floor: <1μV
Sampling Rate Support: PCM 32bit/384kHz, DSD256
Compatibility: iOS, Android, Windows, Mac
Weight: 3.2 oz
What’s in the Box?
1 × Fosi Audio DS2 2024 DAC & Amp
1 × Type-C to Type-C Cable
1 × USB-C to USB-A Converter
1 × User Manual
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
Cable: 1-month warranty only for manufacturing defects only
Fosi Audio is a dynamic brand dedicated to providing the most comprehensive range of Hi-Fi audio products in the market. We cater to passionate audiophiles by offering Hi-Fi products, DIY kits, and expert guidance, ensuring an immersive audio experience. Beyond a mere transaction, we foster enduring relationships with our clients, supporting them throughout their audio journey.
Our diverse product lineup includes the Hi-Fi power amplifier, pre-amplifier, headphone amplifier, DAC, music player, Bluetooth receiver, DIY board, DIY chassis, and an array of DIY kits. These meticulously crafted offerings embody our commitment to exceptional sound quality and innovation.
Established in China in 2017, Fosi Audio was founded by a team of devoted audiophiles. Our products have gained significant popularity within the Chinese DIY audio community, amassing a large and dedicated following. To expand our reach beyond borders, we launched this website in 2017 and began offering a selection of products on Amazon under the name "Fosi audio." However, please note that many of our outstanding products are not yet available on this website or Amazon. If you cannot find what you're looking for, simply reach out to us via email, and we will be delighted to assist you in finding the perfect product to meet your needs.
At Fosi Audio, we are not just a brand; we are your partner in achieving audio excellence. Join us on this immersive sonic journey and experience the true essence of Hi-Fi audio.
It is an entry level DAC dongle which is good for pc not for smartphones, because it is power hungry, socially with 300 ohms headphone.
Fosi Audio DS2 2024 Portable Hi-Res DAC & Amp
Great stuff buy one test one you won't be disappointed, Value for money
Fosi Audio DS2 2024 Portable Hi-Res DAC & Amp
Clean, clear sound with very good refinement and control in the treble region. Solid build quality. Almost all the tunings can be done through physical buttons on the DAC. Coming to music.. Sounds great, bit warm. Just started exploring the DAC with different music genres. Paired this with ISN Neo 3 IEM and simply awesome. Takes listening experience to the next level
Thank you for your positive review of the Fosi Audio DS2 2024 Portable Hi-Res DAC & Amp. We are glad to hear that you are enjoying the clean and clear sound, as well as the solid build quality. It's great to know that the physical buttons allow for easy tuning. We hope you continue to enjoy exploring different music genres with your ISN Neo 3 IEM - it sounds like a perfect pairing. Thank you for choosing The Audio Store and happy listening!
It's warm/bassy sound is what I like the most. The emphasis is more on sub bass but also not in ur face. Mid bass also sounds clean without being shouty. Treble is really smooth with slight sparkle which is great if ur treble sensitive. I can listen to these for hours at work without being distracted or fatigue. Good fit and build quality. Any genre sounds good on this iem.
As redditors said its good. But might be boring at initial iem try. App has lot of EQs to tweak and play
I would like to thank Purecast & Pritam ...I was not sure if this was required. I however noticed it's not a normal dac it's a DAC Amp so it also amplifies sound...it comes in a cool packaging with cover and I am thankful that Audiocular was thoughtful to add a typeC to Type A convertor as I am using this mainly in my Dell laptop. Thanks Audiocular.
Bought the Moondrop Dawn Pro Balanced DAC/AMP recently. Build feels premium with a sleek metal body, swappable 3.5 mm & 4.4 mm outputs, plus handy volume buttons. Noticed extra loudness and a subtle but clear improvement in my IEMs. For the price, totally worth it! 🎶
I used lots of earphones and earbuds, neckband but this IEMs sound is different unbelievable I loved it Thanks 👍🏻
Excellent product. Super premium and sounds balanced.
THE HEADPHONE IS ONE OF THE BEST WHICH DOESN'T NEED ANY TEST BECAUSE ITS THE BEST, THE BLUETOOTH RANGE IS SO LONG THAT ONCE I FORGOT MY MOBILE WHILE GOING TO MARS , NORMAL HEADPHONE WILL DISCONNECT IN THAT RANGE ABOUT 33.9 MILES BUT THEN ALSO THE HEADPHONE DOESN'T DISCONNECTED AND THE MUSIC WAS STILL PLAYING NOW I WAS COMING BACK FROM MARS AND TYPED THE REVEIW WITH MY BARE HANDS 😀
Although termed as Basshead, it's clean and crisp. Bass knows when to punch and when to calm. Upgrading from Juzear Defiant which is itself a great allrounder to its price. Thoroughly enjoying the Martilo. Finally great service by TAS. Looking forward for more.
good build qualityand High quality audio output
Absolutely a beast, had to wait since it was out of stock. This is the best under 3K and probably the best with Mic under 5k.
If you are a beginner audiophile and wanted to invest friendly budget IEM then EarAcoustic STA-Hi End Series IEM is a way to go. The sound is awesome and you can hear every node it contains.
It is the best and clean sounding IEM, perfect for the Beginner.
I love the fact that I can change the nozzle and its a little different sounding, so its two in one.
The cable quality is out of the world no external sound when I touch it.
I can hear so many details clearly. I say please go for this, it is perfect first IEM and the Perfect Upgrade if you had IEM under 2k before
It provides Awesome sound quality go and buy it m
🎧 KZ Castor Pro IEM – Review
🔊 Sound Quality
The KZ Castor Pro delivers clear and detailed sound with excellent separation across lows, mids, and highs. The decent thumping bass is tight and controlled, giving energy to tracks without overwhelming the vocals or instruments. Its super-balanced tuning ensures a natural, enjoyable listening experience suitable for all genres.
🎚 Unique DIP Switch Equalizer
What sets the Castor Pro apart is its DIP switch physical equalizer. With up to 16 different tuning options, it allows listeners to adjust the sound profile on the go—boosting bass, enhancing treble, or keeping it neutral. This feature gives it a level of flexibility rarely seen in IEMs at this price point.
🔇 Noise Isolation
Although it lacks active noise cancellation, the design offers an excellent passive seal. The snug fit ensures that outside noise is effectively blocked, making the listening experience immersive and ensuring ANC doesn’t feel like a missing feature.
🎼 Hi-Res & DAC Performance
For those using Hi-Res lossless audio, pairing the Castor Pro with a DAC is highly recommended. The extra power and clarity from a DAC enhance the already impressive soundstage, detail retrieval, and overall dynamics, making the listening experience truly premium.
💰 Value for Money
At its smart price, the KZ Castor Pro punches well above its weight. It combines detailed sound, punchy bass, balanced tuning, and innovative features—making it a strong choice for both audiophiles on a budget and everyday music lovers.
Have been using these buds for like an year now, they gave me a great time all that while, only recently the cable started getting green and there was an issue with audio drop on even a slight movement (like every earphone ever), but still a great investment for an year.
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It's warm/bassy sound is what I like the most. The emphasis is more on sub bass but also not in ur face. Mid bass also sounds clean without being shouty. Treble is really smooth with slight sparkle which is great if ur treble sensitive. I can listen to these for hours at work without being distracted or fatigue. Good fit and build quality. Any genre sounds good on this iem.
As redditors said its good. But might be boring at initial iem try. App has lot of EQs to tweak and play
Anyone who's buying from Audio Store can 100% trust their services. Speaking about product it is really great. This IEM provides you with switches which can adjust frequency and bass according to your preferences. You can blindly go for this IEM in this price range.
best in this budget
The Kefine Klean is an impressive IEM for its price. It is clean, detailed sound with great resolution and a balanced tuning that works across genres. The build feels premium, the cable is solid, and comfort is excellent for long sessions. A really easy set to recommend if you want clarity and refinement without breaking the bank.
This is my first purchase fromThe Audio Store. I am impressed by the punctuality and the neat packing. Great job!
Using this with my Ziigaat Doscinco and it has widened the soundstage and better seal , thus leading to elevated bass response and imaging.
just goo for it
First experience with the Audio Store
The delivery was not that fast...
Package was packed quite well....
Product was authentic and quite awesome..👍🏿
I would like to thank Purecast & Pritam ...I was not sure if this was required. I however noticed it's not a normal dac it's a DAC Amp so it also amplifies sound...it comes in a cool packaging with cover and I am thankful that Audiocular was thoughtful to add a typeC to Type A convertor as I am using this mainly in my Dell laptop. Thanks Audiocular.











