FiiO K11 R2R
Desktop DAC and Headphone Amplifier
- Fully Differential 24-bit R2R DAC
- Dual Audio Modes
- True 24-bit Decoding
- Advanced Audio Circuitry
- Robust Power System
- Intuitive Control & Display
- Comprehensive Safety Features
-
Estimated Delivery:Sep 21 - Sep 25
-
Free Standard Shipping & Returns On all orders. Check if your country applies.
FiiO K11 R2R
Fully Differential 24-bit R2R DAC
Engineered with precision, the K11 RAR features a self-developed, four-channel fully differential 24-bit R2R DAC using dual 48-precision thin-film resistor arrays per channel—totaling 192 resistors with 0.1% tolerance and minimal temperature drift. This design guarantees a uniquely charming sound signature that elevates your audio experience.
Superior Noise Performance
Utilizing a fully differential architecture, the K11 RAR dramatically reduces noise and minimizes unwanted FFT harmonics compared to typical designs. This results in a darker, purer musical background that lets every nuance of your audio come through with exceptional clarity.
Versatile Sound Modes
The K11 RAR offers dual NOS (Non-Oversampling) and OS (Oversampling) modes to suit your listening preferences. NOS mode preserves the original sampling rate for an authentic, organic sound, while OS mode upsamples to a high 384kHz rate for refined, crystal-clear audio performance.
True 24-bit Decoding
With support for PCM 384kHz/24bit and DSD256 decoding (with DSD256 converted via Native mode), this DAC effortlessly handles high-precision audio signals. Every subtle detail in your music is faithfully reproduced, delivering an outstanding and immersive listening experience.
Precision Volume Control
Equipped with the NJW1195A four-channel electronic volume controller and featuring three independent gain levels with dedicated volume curves, the K11 RAR adapts seamlessly to everything from delicate in-ear monitors to power-hungry over-ear headphones—ensuring precise, low-distortion adjustments for every setup.
Advanced Audio Circuitry
A specially-designed audio circuit channels the signal from a USB interface through an FPGA and the R2R DAC, followed by low-pass filtering and analog conversion via high-performance op-amps. This meticulous design—complemented by headphone protection and pop noise elimination—ensures that your audio is processed with the utmost integrity and reliability.
Robust Power Supply & Premium Components
The K11 RAR’s power system employs up to 17 low-noise LDO regulators, two DC-DC converters, and a custom 12V switching supply, providing dedicated power rails for multi-channel operation. Coupled with high-quality Beryl solid capacitors offering ultra-low ESR and excellent interference resistance, this design secures a stable, clean power supply for uncompromised audio performance.
Powerful Output Performance
Capable of delivering over 1300mW per channel under a 32惟 load in balanced mode, the K11 RAR drives HiFi earphones and headphones with ease. This robust output ensures that every intricate detail of your music is heard, pushing your audio system to its full potential.
Intuitive Display & Control
A custom high-contrast LCD screen provides at-a-glance information on sampling rate, volume, and gain, while a multi-function volume knob offers total control—powering the device on/off, navigating menus, adjusting volume, and switching between preset modes effortlessly. This design makes managing your audio settings simple and intuitive.
Elegant RGB Logo Lighting
Enhancing both form and function, the adjustable RGB-lit logo not only adds a stylish visual element but also indicates the current sampling rate. With customizable brightness, color, and patterns, it creates an elegant, uniform light show that reflects the premium nature of the K11 RAR.
Comprehensive Safety & Reliability
Built for longevity and consistent performance, the K11 RAR incorporates RCA metal pressing for secure connections, an upgraded headphone amplifier heat dissipation system, and exclusive phosphor copper shielding to guard against interference. Additional features like DC protection and smart power-saving automatically safeguard your equipment, ensuring worry-free operation.
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.
Colors
Black, Silver
Dimensions
147 x 133 x 32.3 mm (including feet)
Weight
Approximately 420 g
Main Control Chip
GD32F303RET6 (single-chip microcomputer)
DAC
Fully differential true 24-bit R2R resistor arrays
Volume Control Chip
NJW1195A
USB Input
384kHz/32bit, DSD256
Coaxial Input
192kHz/24bit
Optical Input
96kHz/24bit
USB Connector
Type-C
Display
Custom LCD screen
Power Supply
DC12V 2A external adapter
SE Power Output 1
L+R ≥ 460mW + 460mW (32Ω, THD+N <1%) [32Ω/single-ended/high gain]
SE Power Output 2
L+R ≥ 50mW + 50mW (300Ω, THD+N <1%) [300Ω/single-ended/high gain]
BAL Power Output 1
L+R ≥ 1300mW + 1300mW (32Ω, THD+N <1%) [32Ω/balanced/high gain]
BAL Power Output 2
L+R ≥ 220mW + 220mW (300Ω, THD+N <1%) [300Ω/balanced/high gain]
Frequency Response
20 Hz ~ 50 kHz (attenuation <1.3 dB)
SNR
≥115 dB (A-weighted)
Noise Floor
PO < 7.2 μV (A-weighted); BAL < 14.1 μV (A-weighted)
Output Impedance
PO < 1Ω (32Ω load); BAL < 1.5Ω (32Ω load)
THD+N
LO < 0.02% (1kHz/10kΩ)
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.
