HiBy FC4 vs FC3: Portable Headphone AMPs with Display Screens
By HiBy - Official Online Store - Music players, Earphones ... | Published: 2026-10-22
Category: Comparisons
Compare HiBy FC4 and FC3 USB DAC amps with display screens. See which one suits your listening needs and budget.
Quick Answer
For most listeners, the HiBy FC4 offers a clear step up in DAC performance and flexibility with its dual CS43131 chips and parametric EQ. The HiBy FC3 remains a solid budget pick if you need MQA support and don't require the extra tuning options.
DAC Architecture and Sound Quality
The HiBy FC4 uses dual CS43131 DACs, which can provide better channel separation and a more detailed soundstage compared to a single-chip design. This makes it a strong choice for critical listening or if you own high-resolution IEMs that reveal subtle differences.
The HiBy FC3 is built around the ES9281AC Pro DAC, which is a capable chip but is a single-DAC solution. It still supports high-res audio and MQA, but you may notice slightly less separation and detail on complex tracks.
Tuning Flexibility
If you like to adjust your sound, the FC4 gives you more control. It includes preset EQs and a customizable parametric EQ, so you can fine-tune the frequency response to match your headphones or personal taste.
The FC3 offers preset EQs but lacks the parametric EQ found on the FC4. For listeners who prefer a set-and-forget approach, this is fine, but if you enjoy experimenting with sound profiles, the FC4 is more versatile.
Power and Portability
The FC3 outputs up to 112mW, which is enough for most in-ear monitors and efficient over-ear headphones. It's a compact, all-metal dongle that's easy to carry with your phone or laptop.
The FC4's exact power output isn't listed, but its dual DAC design and dual audio clock oscillators suggest it's built for stable, high-quality output. If you drive harder-to-power headphones, the FC4's architecture may offer better headroom, but you should check the impedance and sensitivity of your gear.
Trade-Offs at a Glance
- Sound detail vs. price: The FC4's dual DACs likely deliver better channel separation and detail, but it costs about $11 more. If you're on a tight budget, the FC3 still sounds great for the price.
- Tuning options vs. simplicity: The FC4 includes a parametric EQ for deep customization, while the FC3 offers preset EQs only. Choose the FC4 if you like to tweak; choose the FC3 if you prefer plug-and-play.
- MQA support vs. high-res: The FC3 supports MQA 16x, which is great for Tidal Masters. The FC4 doesn't list MQA, but it handles DSD512 and PCM 768kHz/32bit, so it's better for native high-res files. If MQA is a must-have, the FC3 is the only option here; otherwise, the FC4 covers more formats.
Product Facts
- HiBy FC4 with Display: Dual CS43131 high-performance DACs, DSD512 PCM 768kHz/32bit, dual audio clock oscillators (45.1584MHz, 49.152MHz), preset EQs, customizable parametric EQ. Dual DACs and parametric EQ give you detailed sound and the ability to tailor it to your headphones, making the FC4 a more versatile choice for audiophiles.
HiBy FC4 with Display - HiBy FC3 with Display: ES9281AC Pro DAC, MQA 16x support, OLED display, all-metal body, 112mW output power. MQA support and 112mW output make the FC3 a great budget option for Tidal Masters listeners and efficient IEMs.
HiBy FC3 with Display
Which One Fits You?
Best for
- Audiophiles who want detailed sound and parametric EQ tuning: HiBy FC4
- Budget-conscious listeners who need MQA support for Tidal Masters: HiBy FC3
Not for
- If you require MQA support, the FC4 is not the right choice.
- If you want the most advanced tuning options, the FC3 may feel limiting.
