HiBy FC6
USB Headphone R2R DAC/AMP
- Darwin Architecture NOS/OS Mode
- MQA 8X unfolding
- FPGA reclocking
- Dual OPA1622
- All-platform support, plug-and-play
- Supports DSD up to DSD51, PCM up to 32bit /768kHz
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Estimated Delivery:Apr 04 - Apr 08
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Free Standard Shipping & Returns On all orders. Check if your country applies.

HiBy FC6
Darwin audio architecture
DAP-class complete audio architecture onboard for a groundbreaking audio experience. We apply the Darwin architecture, the winner of endless accolades in the high-end DAP arena, for the first time in a portable headphone DAC/amp, utilizing R2R design for the DAC, ensuring a sound with emotion, warm, wet with loose naturalness, at the same time preserving the FIR filtering and NOS/OS switch, etc. of the Darwin system for maximum flexibility.
NOS mode
NOS mode is non-oversampling, responding more immediately and directly to signals, converting the digital signals to the analog output directly, bringing a more analog sound signature, It is more suitable for music files/streams of 192kHz sample rate or above.
OS mode
Oversampling mode easily removes aliasing artifacts via the tried and true combination of the oversampling and ultrasonic lowpass filter, HDR, and NOS/OS mode switch, yielding superior measured performance; enables all functions of the Darwin architecture, realizes personalized adjustments of sound signature, adapting to different earphones.
MQA 8X unfolding
Master-tape quality audio re-constitution, a take-you-to-the-concert / studio experience! HiBy FC6 supports 8x MQA unfolding to provide music reproduction on par with master tapes and live venues!
Darwin FIR filter & Darwin-HDR
Achieves up to 16x oversampling with numerous custom filters available to suit different music styles; Utilizing advanced algorithms exclusively applicable to the Darwin architecture to improve dynamic range, further enriching the retrieval of detail, attaining new levels of musicality.
FPGA reclocking
Dual independent high precision clocking. Equipped with dual crystal oscillators at 45.158MHz and 49.152MHz, for accurate clocking of 44.1x and 48x kHz music sources alike and vanishingly low jitter
All-platform support, plug-and-play
Smartphone audio dongle / Computer soundcard etc. No charging required--USB powered in real-time.
Dual OPA1622
Discrete headphone stage with dual OPA1622. Headphone stage on par with high-end DAPs, with 2 flagship-class OPA1622 headphone amp chips and 4-way independent current-mode amplification.
Hi-res audio support
Natively supports DSD up to DSD512 as well as PCM up to 32bit /768kHz, on par with HiFi home audio components, as well as all streaming music sources.
Free Standard Shipping
We Offer FREE Standard Shipping on all orders to Most of the World*
1 Year Warranty
Your Headphones, IEM's, AMPs and DACs, are covered by a warranty against factory defects.
Authentic Products
HiFiXAudio is an official distributor of the brands we carry. All products are genuine.
FAQ's
How long does it take to process an order?
For in-stock products, your order is expected to be shipped within 3 working days. Customized items and pre-orders take a longer time (do check in with our staff for more information). On normal non-sale days, once your parcel is shipped:
- For Standard Shipping, it takes about 2-3 weeks for items to be delivered after it is shipped. For some countries, it might take up to 1-2 months, depending on your country and its custom procedure. The duration for transit is beyond our control. Mechlands does not arrange refunds for such cases. Please consider an upgrade to DHL Express or keep the waiting time in mind.
- For Express Shipping, it takes about 3-10 days for items to be delivered after it is shipped.
Note:
Shipping methods and period might be affected and changed due to festive seasons, pandemic circumstances or other unforeseen circumstances.
What kind of shipping do you offer?
We have two shipping methods - Standard Shipping and Express Shipping.
Standard Shipping is free for most countries/areas.
Express Shipping via DHL Express or FedEx is 10-40USD (excluding tax) depending on your country. If your order is over 500USD, DHL Express Shipping is free*.
*KiiBOOM keyboards are not eligible for free shipping.
Shipping fees exclude import taxes or processing fees that may be applicable for your country. Mechlands is not responsible for such fees. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for the two-way freight charges. The cost of the freight charges may be more than the amount reflected on your order due to tax and other miscellaneous fees.
Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Mechlands will not be responsible for additional administrative or handling fees charged by your local courier company or customs. Please kindly check this with your local customs.
For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to make additional payments. Should you have any other queries regarding shipments, please contact us before placing an order.
Who does pay for the import tax/custom fees?
Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.
If the custom fees and the delivery of the parcel are rejected by the recipient, the shipping cost still needs to be paid. Mechlands only arranges the refund of the order amount after deducting the shipping cost incurred.
Which countries do you ship to?
We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. Shipping methods may alter due to different situations. After proceeding to Checkout, the available shipping method(s) and cost will be stated before the payment page.
Note:
Note: For countries and areas of Africa, Alaska, Argentina, Canada, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few, we can only do Express Shipping. This may be subjected to changes due to unpredictable events such as pandemic, war, and etc.
How do I cancel order?
Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order.
As our Support Team may not be available during non-working days and weekends, please place your order wisely as support cannot be guaranteed for such requests.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (support@mechlands.com) or website chat. We will help you with the changes if that could be done.
For other queries, the fastest way to contact us is via our website or Discord
Do I get tracking details for my order?
After placing an order, you will receive the order confirmation email. After your order is shipped, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.
What if i dislike the product once it arrives?
On the ground of disliking a product, you may return any non-customized and non-sales product that is sealed, within the 15 days upon receiving it. To be eligible for a return, your item must be unused and in the same condition that you received it. It also must be in the original packaging. Customized and sales products, accessories, or spare parts are excluded from the 15-day return policy. The shipping fee, handling fees, or any form of tax caused by return will NOT be refunded.
My product came with some kind of factory issue
For factory defective items within the first 30 days upon delivery, you would need to provide a solid proof. All customers are strongly advised to take an unboxing video of their parcel and packaging. If the item is defective due to manufacturing issues instead of unguided manual modifying/disassembling, Epomaker will provide a shipping label and reship the replacement unit or refund to you after receiving the return parcel.
Who applies to your free 15/30 Days Return Policy program?
*Our 15-day & 30-day warranty applies only to the following countries Canada, United States, Netherlands, Poland, United Kingdom, Czech Republic, Australia, Brazil, Saudi Arabia, Spain, Ukraine, France, Mexico, Italy, Chile, South Korea, Japan, Switzerland, United Arab Emirates, Portugal, Israel, Russia, Belgium and Germany. Customers in other countries may incur additional fees for warranty service.