Description
Experience the upgraded Fosi Audio Gaming DAC & Headphone Amplifier. The K5 Pro headphone DAC amp combo offers unrivaled internals, exceptional performance, and richer audio details. Designed specifically for gaming, it serves as the perfect external sound card for PS5, Computers, PC, MAC, and active speakers.
Versatile Connectivity and Unique Design
The K5 Pro USB DAC converts USB Type C/Optical/Coaxial signals to 3.5MM AUX and RCA signals, ensuring low distortion and a great dynamic range. With a 2-in-1 USB Type C interface for charging and audio input, it's compatible with your phones (Note: Audio source must connect to the USB-A/C port.). The RCA output can be connected to an amplifier or powered speakers on your desktop, while the 3.5 MM AUX and microphone interface can drive headphones ranging from 16 Ohm to 300 Ohm.
Enhanced Sound Quality and Immersion
Equipped with the Texas Instruments NE5532 op-amp chip, the K5 Pro headphone DAC delivers a low-noise floor and clean sound. Compared to its predecessor, the Q4, the K5 Pro offers noticeably improved overall sound quality, allowing you to immerse yourself in your music effortlessly.
Impressive Specifications for Customized Control
The K5 Pro features master volume/bass/treble control and an input mode switch, granting you customized control over your audio. With USB Type C/Optical/Coaxial sampling rates of up to 24 bit/192 kHz, THD ≤0.003%, and SNR ≥110dB, it delivers exceptional performance. The output power ranges from 1000mw@16Ω to 80mw@300Ω, ensuring powerful audio for your gaming experience.
Unleash Rich Audio Details for Gaming
Unleash the full potential of your gaming system with the Fosi Audio Gaming DAC & Headphone Amplifier. Enjoy enhanced sound quality, versatile connectivity options, and immersive gaming audio. Elevate your gaming experience with the K5 Pro from Fosi Audio.
Compatibility: PC, Mac, PS5, PS4, PS4 Pro,Nintendo Switch, Phone
Input Type: USB-C, Optical, Coaxial, 3.5 mm mic
Output Type: 3.5 mm headphone jack/line-out, RCA
USB Sampling Rate: Up to 24 bit/96 kHz
Optical/Coaxial Sampling Rate: Up to 24 bit/192 kHz
Headphone Impedance Supported: 16-300 Ω
Power Input: DC 5V via USB-C
Output Power:
1000mw@16Ω
500mw@32Ω
300mw@64Ω
150mw@128Ω
80mw@300Ω
THD : ≤0.003%
SNR: ≥ 110dB
Dimensions: 4.4×3.7×1.2 in (112x95x30mm)
Net Weight: 0.55 lb (251g)
Warranty Period: 1 Year
In The Box-
K5 Pro DAC amp x1
3.5MM headphone splitter x1
2-in-1 USB Type A/C to Type C cable x1
User Manual x1
Optical Cable x1
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.
Pros-
- Absolute worth it device for the money
- Powerful treble/bass tone control
- Well built
- Adds clean sub-bass to neutral IEMs making them sound fun and punchy.
Cons-
- Background hissing is present on higher volumes with IEMs
- Space is very less between the knobs to control
Versatile entry-level DAC with headphone amp solid stylish build with plenty of features, a better alternative for PC audio. yes, it drives anything no issue at all.
Thank you for your review! We're glad to hear that you are happy with your purchase of the Fosi Audio K5 Pro. We pride ourselves on creating versatile and stylish products that enhance your PC audio experience. It's great to know that the headphone amp is able to drive any device without any issues. Thank you for choosing Fosi Audio & The Audio Store. Happy listening!
Can get decently loud, mids are a little too forward.
Thanks for the review! We're glad you're enjoying the Fosi Audio K5 Pro Gaming DAC & Headphone Amplifier! The mids are a bit forward, but the DAC can get decently loud.
This Is A Very Good Sound for Fosi Audio K5 Pro Gaming DAC & Headphone Amplifier
Great review! The Fosi Audio K5 Pro Gaming DAC & Headphone Amplifier sounds great and is a great value. Thanks for taking the time to write about it.

Description
Experience the upgraded Fosi Audio Gaming DAC & Headphone Amplifier. The K5 Pro headphone DAC amp combo offers unrivaled internals, exceptional performance, and richer audio details. Designed specifically for gaming, it serves as the perfect external sound card for PS5, Computers, PC, MAC, and active speakers.
Versatile Connectivity and Unique Design
The K5 Pro USB DAC converts USB Type C/Optical/Coaxial signals to 3.5MM AUX and RCA signals, ensuring low distortion and a great dynamic range. With a 2-in-1 USB Type C interface for charging and audio input, it's compatible with your phones (Note: Audio source must connect to the USB-A/C port.). The RCA output can be connected to an amplifier or powered speakers on your desktop, while the 3.5 MM AUX and microphone interface can drive headphones ranging from 16 Ohm to 300 Ohm.
Enhanced Sound Quality and Immersion
Equipped with the Texas Instruments NE5532 op-amp chip, the K5 Pro headphone DAC delivers a low-noise floor and clean sound. Compared to its predecessor, the Q4, the K5 Pro offers noticeably improved overall sound quality, allowing you to immerse yourself in your music effortlessly.
Impressive Specifications for Customized Control
The K5 Pro features master volume/bass/treble control and an input mode switch, granting you customized control over your audio. With USB Type C/Optical/Coaxial sampling rates of up to 24 bit/192 kHz, THD ≤0.003%, and SNR ≥110dB, it delivers exceptional performance. The output power ranges from 1000mw@16Ω to 80mw@300Ω, ensuring powerful audio for your gaming experience.
Unleash Rich Audio Details for Gaming
Unleash the full potential of your gaming system with the Fosi Audio Gaming DAC & Headphone Amplifier. Enjoy enhanced sound quality, versatile connectivity options, and immersive gaming audio. Elevate your gaming experience with the K5 Pro from Fosi Audio.
Compatibility: PC, Mac, PS5, PS4, PS4 Pro,Nintendo Switch, Phone
Input Type: USB-C, Optical, Coaxial, 3.5 mm mic
Output Type: 3.5 mm headphone jack/line-out, RCA
USB Sampling Rate: Up to 24 bit/96 kHz
Optical/Coaxial Sampling Rate: Up to 24 bit/192 kHz
Headphone Impedance Supported: 16-300 Ω
Power Input: DC 5V via USB-C
Output Power:
1000mw@16Ω
500mw@32Ω
300mw@64Ω
150mw@128Ω
80mw@300Ω
THD : ≤0.003%
SNR: ≥ 110dB
Dimensions: 4.4×3.7×1.2 in (112x95x30mm)
Net Weight: 0.55 lb (251g)
Warranty Period: 1 Year
In The Box-
K5 Pro DAC amp x1
3.5MM headphone splitter x1
2-in-1 USB Type A/C to Type C cable x1
User Manual x1
Optical Cable x1
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.
Pros-
- Absolute worth it device for the money
- Powerful treble/bass tone control
- Well built
- Adds clean sub-bass to neutral IEMs making them sound fun and punchy.
Cons-
- Background hissing is present on higher volumes with IEMs
- Space is very less between the knobs to control
Versatile entry-level DAC with headphone amp solid stylish build with plenty of features, a better alternative for PC audio. yes, it drives anything no issue at all.
Thank you for your review! We're glad to hear that you are happy with your purchase of the Fosi Audio K5 Pro. We pride ourselves on creating versatile and stylish products that enhance your PC audio experience. It's great to know that the headphone amp is able to drive any device without any issues. Thank you for choosing Fosi Audio & The Audio Store. Happy listening!
Can get decently loud, mids are a little too forward.
Thanks for the review! We're glad you're enjoying the Fosi Audio K5 Pro Gaming DAC & Headphone Amplifier! The mids are a bit forward, but the DAC can get decently loud.
This Is A Very Good Sound for Fosi Audio K5 Pro Gaming DAC & Headphone Amplifier
Great review! The Fosi Audio K5 Pro Gaming DAC & Headphone Amplifier sounds great and is a great value. Thanks for taking the time to write about it.
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Let customers speak for us
from 4874 reviewsKZ Castor Harman Target Version – Review
Design & Comfort
Lightweight, durable, and comfortable with a detachable cable. The in-line mic is useful for calls and gaming.
Sound Quality
Bass: Punchy and deep without overpowering.
Mids: Clear vocals and instruments.
Highs: Crisp but slightly bright.
Soundstage: Decent separation for immersive listening.
Pros:
✔ Enhanced bass
✔ Balanced tuning
✔ Comfortable & durable
✔ Affordable
Verdict:
A budget-friendly IEM with great sound and comfort, though the mic is just decent.
I'm using first time DAC most of the people refer this varient, difference between 3.5mm jac and this DAC D07 is absolutely awesome, so much details in hearing a song and music, loved it ❤️❤️❤️❤️👌👌👌🙏🙏🙏
Solid pouch
With good space
The product is worth the money
And I personally love the your faster delivery service
I got the product just in with 30 Hrs

I like Moondrop ECHO-A Dac. It is not powerful Dac but it produces quality sound .

Great for listening to all music genres, gaming on PC or consoles or pretty much any thing you'd like to do with a pair of earphones.
Superb packaging 👍🏻 delivered what was promised.

I recently got my hands on the ROSESELSA AURORA Ultra IEM, and I must say, it has exceeded my expectations! For under 2,000 INR, this IEM delivers exceptional value and performance that can easily compete with many pricier models out there.
What really stands out to me is its versatility. The AURORA shines across all genres, whether I'm diving into classical symphonies, jamming to rock anthems, or vibing with electronic beats. The sound quality is simply fantastic, making every listening session a joy.
A cherry on top is the comfort factor—these IEMs are small and lightweight, so they don’t cause any discomfort during long listening sessions. If you’ve had issues with larger IEM shells in the past, you’ll find the AURORA to be a perfect fit. Plus, the cable quality is impressive for the price, adding to the overall value of this product.
To unlock the full potential of these IEMs, I highly recommend investing in an external dongle. I personally use the Kiwi Ear Allegro Mini DAC, and it has truly elevated my audio experience. If you're on the hunt for a budget-friendly IEM that doesn’t compromise on sound quality, the ROSESELSA AURORA is a must-try!
I also want to take a moment to thank the audio store for their outstanding service. My order arrived in perfect condition, and their customer support team was incredibly friendly and helpful. Overall, this has been a wonderful experience, and I’m absolutely thrilled with my purchase!
As a v16 owner this is a worthy upgrade .
Fit :
The iem is designed aesthetically that it fits like custom made
Sound impressions :
Treble is perfectly done with being sibilant, Mids sounds very organic and clear, Bass is the best part here it's a step up from their previous flagship v16.
Staging is better and so is the resolution, A total flagship level iem which punches above the price tag
Thanks to Pritam for his exceptional customer service and deal .
Definitely recommended

Have a great features and I am very happy after buying this m71 thanks audio store 🙏🙏

Time Spent with this DAP is more than 50 days, used many IEMs from Budget range to high end.
OBSERVATION & EXPERIENCE SO FAR.
- Wide soundstage, it's creating a spacious listening experience.
- Smooth and refined sound, with good bass & trebles. I liked it.
- little high Volume doesn't hurt ears because of spaciousness which this DAP creates.
- Main unique point is Vocals & Instruments separation, it's best.
- So far, I noticed Battery back up is really good. Will check it over time and provide feedback.
- Does not get warm that too after using for hours.
- Best software & Shanling Music app, it's very fast ( I use 1TB fully loaded Micro SD card.)
Please Note - Little more care is needed while handling as it has Glass tubes. Again it's unique offering & tubes makes music more enjoyable.
CONS-
1. Charging time ( it will get solve by software updates in future, Brand has co
nfirmed it in their post)
2. Only one colour option is available from Brand.
3. Some settings currently not present, Brand may add in future updates ( DSD gain Compensation, PEQ, MSEB, Night light short cut in quick pannel)
CONCLUSION-
a. Highly recommend those who want detailed & immersive experience.
b. THREE IN ONE- One DAP but three modes, all three sounds differently. One mode Transistor (without Tubes) and two Tube modes (Triode & Ultra- linear).

Sterdy & beautiful cable. I am using it with Hidiz MP145 Planner Magnetic IEM. It add details to music over stock cable. Makes all aspect of sound quality better.

I am writing review after One month regularly uses with my two DAP - Shanling M8t, Hiby R4.
POSITIVES-
1. Best Soundstage
2. Balanced sound
3. Musical & Makes music more enjoyable to ears.
4. No fatigue despite of metal construct.
5. Weight distribution is really good.
6. Largest Magnetic planner in the Category.
7. Details & instruments separation at best.
CONS-
1. Small ears may face challenge. Plz contact team ATS before purchase. Normal ear size, No issues with fit & long usage.
2. Stock cable is good but doesn't suit this IEM.
I am using this with Divinus Auram cable, which goes really well with this by appearance as well as by performance.
CONCLUSION-
1. Very very happy with the purchase. It's my main IEM in daily music journey.
2. My suggestion is Music enthusiast must have atleast one 'Planner Magnetic IEM', believe me I found that the the songs which I am listening since decades are sounding differently with some more details with this IEM.

The KZ Castor is an excellent choice for budget audiophiles. It delivers superb sound quality that rivals much more expensive headphones, with clear highs, rich mids, and deep bass. The build quality is solid, offering both durability and comfort for long listening sessions. At its price, it’s a fantastic value, outperforming many premium options. Highly recommended!

i think it's a great choice for someone who's just starting with the "iem" audiophile thing and it sounds good pretty good for the price range, it's sound clear and crisp, the bass is a little on the lower side but nonetheless great product if you are just starting, oh and yes the delivery was fast got it in a day.