--- product_id: 460743932 title: "HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows" brand: "hiby" price: "¥278" currency: JPY in_stock: false reviews_count: 13 url: https://www.desertcart.jp/products/460743932-hiby-fc4-headphone-amplifier-portable-dac-with-4-4mm-3 store_origin: JP region: Japan --- # 340mW+340mW high driving power @32Ω Dual ES9219 DAC chips for pristine audio Supports PCM768kHz/32bit & DSD256 native decoding HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows **Brand:** hiby **Price:** ¥278 **Availability:** ❌ Out of Stock ## Summary > 🎶 Elevate your sound game—portable power meets pro-level clarity! ## Quick Answers - **What is this?** HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows by hiby - **How much does it cost?** ¥278 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/460743932-hiby-fc4-headphone-amplifier-portable-dac-with-4-4mm-3) ## Best For - hiby enthusiasts ## Why This Product - Trusted hiby brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **MQA 16X Unfolding:** Unlock studio-quality MQA streaming and playback for an immersive listening experience on the go. - • **Hi-Res Audio Mastery:** Native support for PCM768kHz/32bit and DSD256 ensures every detail of your lossless library shines. - • **Plug-and-Play Versatility:** Seamlessly compatible with Android, iOS, Mac, and Windows—no drivers needed for instant audiophile upgrades. - • **Powerful Amp for Any Headphones:** 340mW per channel drives everything from sensitive IEMs to demanding full-size headphones effortlessly. - • **Pro-grade Dual DAC Architecture:** Experience crystal-clear sound with dual ES9219 DACs and FPGA reclocking for ultra-low jitter. ## Overview The HiBy FC4 is a compact, portable USB DAC and headphone amplifier featuring dual ES9219 DAC chips and FPGA-based reclocking for superior sound fidelity. It delivers 340mW per channel at 32Ω, capable of driving a wide range of headphones with ease. Supporting high-resolution audio formats including PCM768kHz/32bit, DSD256, and MQA 16X decoding, it offers professional-grade audio performance in a plug-and-play design compatible with Android, iOS, Mac, and Windows devices. ## Description Buy HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Fantastic portable usb-c amp great for driving higher-end headphones on the go. - This has quickly become one of my favorite pieces of audio technology. Whether I'm on the go with my android phone or on my laptop with this plugged into a USB-C port, it does a fantastic job of enhancing my audio experience. I've got an original pair of V-Moda M100's and I wanted something for my phone and laptop that would drive these cans effectively, and the HiBy FC4 absolutely delivers, providing a noticeable bump in fidelity that laptop and phone DACs just can't match. Bonus: the adjustable volume rocker on the side is super convenient and I use it way more than I thought I would. If I was going to nit-pick, it would have been nice if the Amp also had microphone pass-through so I could use this with my work laptop, but it's not enough to knock off a star. Considering it's small size and overall effectiveness, this little amp was well worth the price. Review: Blown away! - After a FiiO KA11 came in and lasted only 2 minutes before it broke, I doubled the budget, lossless Spotify meant I needed a DAC to go back to my UE Triplefi 10 wired IEMs. Many choices in this price range, but I narrowed it down to the Fosi DS1 or DS2 and this one by HiBy. All three are going to be good choices I think. Very happy with my purchase, just incredibly clear throughout the range, I would say completely neutral. Chose it because of the dual ES9219 chips because I knew I would like that. I am hearing things in songs that I never noticed before. Just a very good unit so far, and very portable. Plenty of power too, I accidentally started a song from my PC without adjusting the volume and almost broke my skull with sound from the Ultimate Ears monitors. New Meze 99 Classics headphones are on their way, can't wait to drive them with this little DAC. Highly recommended, but remember to look at the Fosi units too. Price on the FC4 is down from the original $79 though, making it a great buy. ## Features - [Dual DAC Dual Crystal Portable USB DAC] Equipped with 2 of ES9219 DAC chips and Independent FPGA-based dual independent crystal oscillator reclocking, A solid foundation for good sound quality. Supporting up to PCM768kHz/32bit, DSD256 (native) decoding, edging on professional HiFi player in decoding specifications - [Professional audio architecture] The FC4 headphone amp dac contains the same level of circuitry as a professional full-size HiBy digital audio player, which is designed solely for high definition lossless music, playing back every detail of the original music. - [High driving power usb dac dongle] 340mW+340mW @32Ω for a USB dongle, Easily drive all your HiFi earphones and even some full-size headphones. It will let your earphones handle all music styles with more aplomb than ever, a higher sense of energy without sacrificing any fine control or detail. - [MQA 16X unfolding] The HiBy FC4 MQA dongle includes MQA full decoding technology, which enables you to play back MQA audio files and streams by a factor of 16X - [Plug and Play] No charging required, effective way to improve Sound quality. Driver-free for Android / iOS / Mac / Windows 10 and up, plug-and-play, For versions below Windows 10, need to download the driver.(For iOS system devices need to purchase Lightning to Type-C OTG cable) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B7Q3LJ9R | | Best Sellers Rank | #182,569 in Electronics ( See Top 100 in Electronics ) #262 in Headphone Amps | | Brand | HiBy | | Brand Name | HiBy | | Customer Reviews | 4.4 out of 5 stars 333 Reviews | | Included Components | USB Type A to Type C interconnect , Type-C to Type-C interconnect ,User manual | | Item Dimensions | 0.79 inches | | Item Weight | 22 g | | Item dimensions L x W x H | 0.79 inches | | Manufacturer | HiBy | | Material | Metal | | Material Type | Metal | | Maximum Output Power | 680mW | | Model | FC4 | | Number of Channels | 2 | | Number of Items | 1 | | Part Number | FC4 | | Unit Count | 1 Count | ## Product Details - **Brand:** HiBy - **Item dimensions L x W x H:** 0.79 inches - **Manufacturer:** HiBy - **Number of Channels:** 2 - **Output Power:** 340 Milliwatts ## Images ![HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows - Image 1](https://m.media-amazon.com/images/I/516GlwzdDjL.jpg) ![HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows - Image 2](https://m.media-amazon.com/images/I/71eirI7ZYQL.jpg) ![HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows - Image 3](https://m.media-amazon.com/images/I/61a5O5SPa8L.jpg) ![HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows - Image 4](https://m.media-amazon.com/images/I/71+Sj02r1XL.jpg) ![HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows - Image 5](https://m.media-amazon.com/images/I/715Uu+db15L.jpg) ## Questions & Answers **Q: Why use a USB dongle?** A: Recover a headphone port for your modern smartphone, giving voice to the large online library of lossless music available,hearing more musical details. **Q: Professional audio architecture** A: Containing circuitry on a level with professional full-scale HiBy Digital Audio Players, which is designed solely for high-res lossless music, replaying the original music in every detail, including all its energy and presence. **Q: High performance by the numbers** A: 340mW (32Ω)Output Power, 0.0006% (32Ω)THD+N, 1.7μVrms (32Ω)Noise **Q: What's in the box** A: FC4 DAC headphone amp, USB to Type C interconnect, Type-C to Type-C interconnect ,User manual ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fantastic portable usb-c amp great for driving higher-end headphones on the go. *by B***B on October 21, 2025* This has quickly become one of my favorite pieces of audio technology. Whether I'm on the go with my android phone or on my laptop with this plugged into a USB-C port, it does a fantastic job of enhancing my audio experience. I've got an original pair of V-Moda M100's and I wanted something for my phone and laptop that would drive these cans effectively, and the HiBy FC4 absolutely delivers, providing a noticeable bump in fidelity that laptop and phone DACs just can't match. Bonus: the adjustable volume rocker on the side is super convenient and I use it way more than I thought I would. If I was going to nit-pick, it would have been nice if the Amp also had microphone pass-through so I could use this with my work laptop, but it's not enough to knock off a star. Considering it's small size and overall effectiveness, this little amp was well worth the price. ### ⭐⭐⭐⭐⭐ Blown away! *by R***N on November 11, 2025* After a FiiO KA11 came in and lasted only 2 minutes before it broke, I doubled the budget, lossless Spotify meant I needed a DAC to go back to my UE Triplefi 10 wired IEMs. Many choices in this price range, but I narrowed it down to the Fosi DS1 or DS2 and this one by HiBy. All three are going to be good choices I think. Very happy with my purchase, just incredibly clear throughout the range, I would say completely neutral. Chose it because of the dual ES9219 chips because I knew I would like that. I am hearing things in songs that I never noticed before. Just a very good unit so far, and very portable. Plenty of power too, I accidentally started a song from my PC without adjusting the volume and almost broke my skull with sound from the Ultimate Ears monitors. New Meze 99 Classics headphones are on their way, can't wait to drive them with this little DAC. Highly recommended, but remember to look at the Fosi units too. Price on the FC4 is down from the original $79 though, making it a great buy. ### ⭐⭐⭐⭐ A solid ESS Powered Dingle DAC with good Musicality and Detail. *by B***. on December 15, 2024* The FC4 is a solid budget Dongle DAC that does exactly what most people want, quality plug and play HiRes sound with no frills or gimmicks. The aluminum construction of the housing is very durable, and both the 3.5mm and 4.4mm jacks engage with a comforting click. The volume rocker is fit snugly in the case, and provides positive feedback when pressed. There is a small LED at the top of the unit indicating power, and the bit rate of the content being played. Included accessories are a functional, yet mediocre quality, rubber sleeved USB 3.0 Type-C to Type-C cable, and that's about it. The DAC is a plug and play affair, and requires no software or utilities to work. Just make sure you select the higher UHD quality in your favorite streaming service, to get the most out of it. The tonality of the FC4 is neutral, leaning bright, with the Classic ESS filtering style giving things that little bit of extra sparkle and detail up top. The so called "ESS Sabre Glare" that gives a tinge of edginess to the treble response. Some brighter IEM users may what to be aware that the FC4 will potentially be a tab bit harsh or sibilant on some tracks because of its brighter nature. Especially when a compared to some of the the CS43131 based DACs out there, which might not have that extra spice up top. But this brighter tonality works great for more mellow or dark IEM's, like the Hidiz MP145, or the AFUL Explorer, or the Tangzu FuDu Verse1, where the FC4 will reward you with a little more detail and technicalities up top, where a more neutral or warm DAC might leave you wanting more. In terms of output quality, the 3.5mm and 4.4mm output sound indistinguishable. Obviously, the 4.4mm output pushes more power behind it, and some IEM's benefit from that, but out of all of my <$100 DACS with both 3.5mm and 4.4mm outputs, the FC4's 3.5mm output is second only to the iFi Go-Link MAX in terms of quality. And of course the 4.4mm is perfectly composed, and handles harder to drive sets, like Planars, with ease. Musicality is solid on the FC4, and it feels natural and full, and plays well with all genres thrown at it. When used with the appropriate Lightening OTG Cable, the FC4 also works very well with iOS Devices. And integrates nicely with the interface. It does however lose the independent volume control on the DAC itself. And it does control the iOS primary device volume control instead. Which may be problematic for some, but probably a welcomed feature to an iPhone or iPad users point of view. It is worth mentioning that this unit DOES need FIrmware Updates right out of the box. And I discovered that there is something about AMD Ryzen CPU's, and the way they handle USB, that the HiBy Flash Utility does NOT like. I had to fire up an older Intel based system to get it to work properly, and then the firmware upgrade happened without issue. I imagine it is related to the old x86 compiler used to create the firmware update software, but I digress. I also had one incident where I came back from my laptop after an extended 2 hour long meeting, where I had left this Dongle DAC connected with nothing playing in the background, and it was SUPER HOT! As in Hot Potato, to hot to hold, hot. I have no idea what happened or why, it has never done it again, or since. I thought that maybe it was an issue with the Planars I was using at the time (MP145), but i have used them since with no repeat issue??? Now, if I am stepping away from my phone or laptop or PC for more than 10-15 minutes, I am sure to unplug the FC4. The only other issue I have experienced is slightly higher than average power draw when compared to other similar basic Dongle DAC's, like the Fosi DS2, or Moondrop Dawn Pro. I dont know if this is down to Firmware Logic, or the DAC itself. But it is interesting that the FC4 seems to have a slightly higher battery drain. But it is not obnoxiously high as to be a nuisance. But it is something to at least be aware of. Overall, as long as you understand that this is a basic unit that does exactly what it says it does, and nothing more or less, then it will work perfect for 99% of the people out there looking for that. If you want more features and a control app, look elsewhere, this is a basic Dongle DAC with clean output, and great power handling, that is plug, play, and enjoy, without complications or needless fiddling. It would be an easy 5 star if not for the Firmware Update struggles. ## Frequently Bought Together - HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows - GUCraftsman OTG Cable iOS to Type C/USB C Headphone Amplifier Cable 6N Single Crystal Silver for FiiO BTR5 Q1 Q3 Q3s Qudelix 5K xDuoo Link2 XD-05PLUS E1DA 9038G3 9038S 9038D for iPhone iPad iPod Touch - okcsc DAC/OTG Cable - High-End DAC/Amplifier Adapter for Type C Headphones, Compatible with FiiO K3, Khadas Tone 2 Pro to USB C Mobile --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/460743932-hiby-fc4-headphone-amplifier-portable-dac-with-4-4mm-3](https://www.desertcart.jp/products/460743932-hiby-fc4-headphone-amplifier-portable-dac-with-4-4mm-3) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-04*