FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black)
FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black)
About this item
- Fully-Differential 24-Bit R2R DAC Array - FiiO has featured its newly developed four-channel fully differential 24-bit R2R resistor array on the K11 R2R. It consists of 48 resistors per channel, a total of 192 high-precision ultra-thin film resistors with 0.1% accuracy and low-temperature drift between the four channels. It promises clean and crisp output with dark background thanks to the specially developed audio circuit architecture.
- NOS/OS Dual Operating Modes - FiiO K11 R2R has NOS(Non-Oversampling) and OS(Oversampling) dual operating modes. These are freely switchable and offer dual sound characteristics with the device. The NOS mode maintains the original sampling rate while signal processing while the OS mode oversamples all the signals to 384kHz for processing. NOS mode results in more musical presentation while the OS mode delivers more details and clarity.
- Powerful Amp Section - FiiO has equipped the K11 R2R with professionally designed amp circuitry. It consists of Ti OPA1642 as Low-Pass filters and then dual SGM8262 Professional-grade operational amplifiers. The K11 R2R has an output power rating of up to 1300mWx2, which is adequate enough to drive demanding headphones with ease. It has three-level gain modes for easy pairing with sensitive as well as high-power requiring gear. The K11 R2R also adopts NJW1195A precise digital volume chipset for precise volume adjustment with low distortion between the channels.
- Dual Headphone Output Ports - FiiO K11 R2R houses dual headphone output ports. It consists of a single-ended 6.35mm port and a balanced 4.4mm output port. You can easily pair different IEMs and headphones with the K11 R2R and enjoy high-resolution music to all its glory.
- True High-Resolution Audio Signal Processing - FiiO K11 R2R supports decoding for high-resolution audio signals. It has full support for PCM and DSD signal processing supporting up to 32-bit/384kHz PCM and DSD256 audio signals. DSD256 requires the DSD output mode to be set to native. It is internally converted into PCM for R2R signal processing.
- Professionally Designed Low-Noise Power Supply - FiiO K11 R2R features a professionally designed low-noise power supply. It consists of 17 Low-Noise LDO precision voltage regulator ICs and 2 DC-DCs providing a multi-channel power supply. It further benefits from the external 12V power supply ensuring a clean output with low noise and distortion issues. K11 R2R delivers quality sound for its users.
Overview
- Manufacturer: FiiO
- Maximum Supply Voltage: 12 volts
- Minimum Supply Voltage: 12 volts
- Mounting Type: Cable Mount
- Brand: FiiO
Couldn't load pickup availability
Low stock: 10 left
View full details

Reviews
-
⭐⭐⭐⭐⭐
Olivia Bennett — Seattle, Washington
Listenora has a practical selection of audio accessories that made it easy to find what I needed. The product information was clear, ordering was simple, and everything fit naturally into my everyday listening setup.
-
⭐⭐⭐⭐⭐
Ethan Parker — Austin, Texas
I liked how easy it was to browse the different audio categories. The accessories I ordered were straightforward to use and helped make my desk setup feel cleaner, more organized, and more convenient.
-
⭐⭐⭐⭐⭐
Samantha Reed — Denver, Colorado
The item arrived as expected and worked well with my setup. I especially appreciated the clear product details, which helped me check the connection type and compatibility before placing my order.
-
⭐⭐⭐⭐⭐
Michael Turner — Portland, Oregon
Listenora offers useful audio products without making the shopping process feel complicated. My order was easy to track, the accessories were neatly packaged, and I would consider shopping here again for future audio needs.
FAQ
What types of products does Listenora sell?
Listenora offers everyday audio accessories for work, gaming, travel, fitness, and personal listening. Our selection includes headphones, earbuds, microphones, speakers, audio cables, adapters, stands, protective cases, replacement parts, and cleaning accessories.
How can I check whether a product is compatible with my device?
Please review the connector type, supported devices, dimensions, operating-system requirements, and compatibility information shown on the product page. For additional assistance, contact us with the exact brand and model number of your device before ordering.
How much does shipping cost?
Unless a different rate or promotion is displayed during checkout, we charge a flat shipping fee of $6.90 per order. International duties, taxes, customs charges, and other third-party fees are not included unless expressly stated.
How long does order processing take?
Orders are generally processed within 1–3 business days after payment is confirmed. Processing may take up to 5 business days during holidays, promotional events, high-demand periods, or inventory reviews.
How long will delivery take?
Estimated delivery is generally 5–10 business days within the United States and 10–20 business days for eligible international destinations after shipment. Delivery times are estimates and may be affected by carriers, customs, weather, address issues, or other circumstances.
How can I track my order?
Once your order has shipped, tracking information will generally be sent to the email address used during checkout. Tracking may take 2–5 business days after dispatch to display its first meaningful update.
Can I change or cancel my order?
Please contact us as soon as possible after placing your order. We will make reasonable efforts to assist, but changes or cancellations cannot be guaranteed once processing, fulfillment, or shipment has started.
What is your return policy?
Eligible unused products may generally be returned within 30 days after confirmed delivery. Products must meet our return conditions and receive authorization before being shipped back. Certain opened or used hygiene-sensitive audio products may not qualify for change-of-mind returns.
What should I do if my item arrives damaged, defective, or incorrect?
Contact us promptly with your order number, a description of the issue, and clear photographs or videos of the product, packaging, and shipping label. Please retain all original packaging and accessories until the issue has been reviewed.
How can I contact Listenora customer support?
Email us at gtrefasnhuim@gmail.com. Please include your full name, order number, and a clear description of your question. Most inquiries are reviewed within 1–3 business days.
Made for Everyday Listening
At Listenora, we believe audio accessories should do more than simply connect a device. They should make everyday listening feel easier, more comfortable, and better organized.
Every routine has different audio needs. Some moments call for clear communication during work or gaming, while others require compact, dependable accessories for travel, exercise, or relaxed listening. That is why Listenora focuses on practical audio products designed to support real everyday situations without making your setup feel complicated.
Our collection is selected with usability in mind — from headphones, earbuds, microphones, and speakers to cables, adapters, stands, protective cases, replacement parts, and cleaning accessories. Each product is chosen to help improve comfort, connectivity, organization, and convenience across a wide range of audio setups.
Listenora is made for people who value useful products, simple connections, and a more enjoyable listening experience. Whether you are preparing for a meeting, settling into a gaming session, heading out for a workout, or organizing your audio equipment, we are here to help make everyday sound work better for you.
Blog posts
View all-
How to Stop Wireless Earbuds From Falling Out D...
Keep your wireless earbuds secure during every workout by choosing the right ear tips. Learn how size, material, and proper fitting techniques improve comfort, stability, and sound quality for fitness...
How to Stop Wireless Earbuds From Falling Out D...
Keep your wireless earbuds secure during every workout by choosing the right ear tips. Learn how size, material, and proper fitting techniques improve comfort, stability, and sound quality for fitness...
-
Top 5 Mistakes People Make When Choosing Ear Ti...
Discover the five most common ear tip mistakes that reduce comfort, sound quality, and noise isolation. Learn how choosing the right size and material can dramatically improve your listening experience...
Top 5 Mistakes People Make When Choosing Ear Ti...
Discover the five most common ear tip mistakes that reduce comfort, sound quality, and noise isolation. Learn how choosing the right size and material can dramatically improve your listening experience...
-
Top 5 Mistakes People Make When Replacing Ear T...
Discover the five most common mistakes people make when replacing wireless earbud ear tips. Learn how proper sizing, materials, installation, and maintenance can improve comfort, sound quality, and durability.
Top 5 Mistakes People Make When Replacing Ear T...
Discover the five most common mistakes people make when replacing wireless earbud ear tips. Learn how proper sizing, materials, installation, and maintenance can improve comfort, sound quality, and durability.