The FiiO K11 R2R is the update of the successful K11 desktop amplifier/DAC with anew DAC structure and resistor matrix with 24-bit R2R chiptotally differentiating in the market. 

It also features dual NOS/OS modes and high-quality electronic volume control, all to deliver power figures of 1300mW + 1300mWand three gain levels. 

With each component, designed in detail to obtain all the performance, the FiiO K11 R2R lands with new ways to listen to your music without interruptions. Find out! 

The new R2R 24-bit four-channel fully differential DAC developed by FiiO, consists of two sets of ultra-precision thin film resistors. 

With a total of 192 resistors and a tolerance of 0.1% and low temperature deviation, it results in a unique and charming device.

Its totally differential architecture results in lower noise and a full musical background, compared to other current DAC/AMPs.

The FiiO K11 R2R has two modes of use: NOS mode and OS mode.

• NOS Mode: Maintains the original sample rate for decoding, preserving authentic sound and allowing you to enjoy an organic and captivating music experience.

• OS Mode: Performs global oversampling at a high sample rate of 384kHz, for superior audio performance and refined sound.

Support for 384kHz/24-bit PCM and DSD256 decoding means the K11 R2R can handle high-precision audio signals and showcase the details inside. 

In turn, the NJW1195A is a four-channel electronic volume controller. The electronic resistor ladder potentiometer has low distortion and low noise, for a top-notch experience.

Thethree independent gain levels and volume curvesallow the K11 R2R to give you a better listening experience with different types of headphones, whether they are more sensitive IEMs or demanding to move Over-Ear.

The audio signal is transmitted through a USB interface processor to a digital audio bridge. After being processed by an FPGA, it is sent to the R2R DAC for 4-channel output after decoding. From there and through its two TI IOPA1642 op:amps, the volume is adjusted. 

Its gain controls and all internal components are activated to protect your headphones, and of course, achieve a unique sound.

The ultra-low ESR of the capacitors, combined with excellent anti-interference capabilities, can provide a stable and clean power supply for high-quality sound.

With a 32 Ohms load, the K11 R2R is capable of generating up to 1300mW + 1300mW in balanced mode. This allows you to easily handle premium headphones and unleash their full potential.

A custom, high-contrast, durable LCD display lets you easily see sample rate, volume, gain, or output mode at a glance.

In addition, the FiiO logo, illuminated with RGB lighting, provides a quick way to identify the sample rate of the audio currently playing. Six LED strips work in conjunction with carefully placed reflective film and body parts designed to reflect light to make the light show uniform and elegant.

TheMultifunction Volume Knobof the K11 R2R is used to turn the device on and off, operate the menu, adjust the volume and other functions. It is specially designed to perform multiple functions just by pressing and guiding it. You can also switch between modes and adapt your K11 R2R to different audio settings.

For greater stability, reliable connection and durability of the device, security systems are used through components designed to improve heat dissipation and protect the entire assembly with an exclusive phosphor copper metal shield.

It also has DC protection and a new energy saving system.

• 1 x FiiO K11 R2R
• 1 x Power Adapter
• 1 x Power Cable
• 1 x USB Data Cable
• 1 x Headphone Adapter
• 1 x Quick Start Guide
• 1 x Warranty Card