FiiO K11 R2R DAC and Headphone Amplifier (Silver)
We are an authorized FiiO dealer!
Email Your Question
Pairs well with
Free Shipping
We only ship within Canada. Items purchased online qualify for free shipping!
30 Day Returns
All products are eligible for returns within 30 days. All original packaging is required.
Installation & Calibration
Ask about our installation services on home theatre & stereo equipment along with automation.
FiiO K11 R2R DAC and Headphone Amplifier (Silver)
Overview
The FiiO K11 R2R is a compact desktop DAC and headphone amplifier built around FiiO's own R2R resistor-ladder DAC instead of an off-the-shelf DAC chip. It's for listeners who want to hear the natural, engaging sound R2R conversion is known for, with plenty of headphone power, 6.35mm and 4.4mm balanced outputs and an RCA line out.
FiiO's four-channel, fully differential 24-bit R2R DAC uses two 48-resistor precision thin-film arrays per channel, 192 resistors in total, with 0.1% tolerance and low 30ppm temperature drift. You can switch between NOS (non-oversampling) and OS (oversampling) modes to change the presentation. An NJW1195A resistor-ladder electronic volume control and two SGM8262 amp chips deliver up to 1300mW per channel into 32 ohms from the 4.4mm output and 460mW per channel from the 6.35mm output, with three gain levels and three volume curves. Up to 17 low-noise LDO regulators and two DC-DC converters feed separate supply rails.
The K11 R2R takes USB-C (up to 384kHz/32-bit and DSD256), coaxial (192kHz/24-bit) and optical (96kHz/24-bit) inputs, and adds a coaxial digital output in USB mode. A custom LCD shows volume and sample rate, the RGB logo light also signals the sample rate, and the multi-function knob handles volume and menus. It runs from an external 12V/2A supply and supports a driver-free USB mode.
Simcoe Audio Video Insight
The K11 R2R is a good way to try R2R sound without moving to a large, expensive DAC. Spend some time with both NOS and OS modes on music you know well, since each presents the same recording a little differently and the right choice is down to your taste. Use the 4.4mm output for the most power and low gain for sensitive IEMs. The RCA line out lets it feed powered speakers or a separate amp too.
More Info
Why the FiiO K11 R2R Stands Out
FiiO R2R DAC
192 precision resistors, fully differential, 24-bit.
NOS/OS Modes
Switch between non-oversampling and oversampling.
1300mW Balanced Output
4.4mm output for most full-size headphones.
Resistor-Ladder Volume
NJW1195A for precise, low-noise level control.
Three Gains, Three Curves
Match IEMs and full-size headphones.
Three Digital Inputs
USB-C, coaxial and optical, plus RCA line out.
Buyer's Guide
Who It's For
- The R2R-Curious Listener: Wants to hear resistor-ladder sound on a desk.
- The Full-Size Headphone Owner: Needs up to 1300mW balanced.
- The Desktop System Builder: Wants line out for speakers or an amp.
How It Compares
The K11 R2R shares its size, inputs and outputs with the standard FiiO K11. The K11 uses a Cirrus Logic CS43198 chip with higher measured SNR and a bit more power, while the K11 R2R uses FiiO's own resistor-ladder DAC with switchable NOS and OS modes.
FiiO K11 R2R DAC and Headphone Amplifier (Silver) Specifications
| General Information | |
|---|---|
| Model | FiiO K11 R2R |
| Brand | FiiO |
| Product Type | Desktop R2R DAC and headphone amplifier |
| Colours Available | Black, Silver |
| Audio | |
| DAC | FiiO four-channel, fully differential 24-bit R2R (192 resistors, 0.1%, 30ppm) |
| Modes | NOS / OS |
| Volume Control | NJW1195A electronic |
| Amplifier | SGM8262 x2 |
| USB Receiver | SA9312L |
| Gain | Low, medium, high; 3 volume curves |
| USB | Up to 384kHz/32-bit, DSD256 |
| Coaxial In | Up to 192kHz/24-bit |
| Optical In | Up to 96kHz/24-bit |
| 6.35mm Output (OS Mode) | |
| Output Power | 460mW+460mW @ 32Ω; 660mW+660mW @ 16Ω; 50mW+50mW @ 300Ω |
| SNR | ≥115dB (A-weighted) |
| Output Impedance | <1Ω |
| Recommended Impedance | 8 to 150Ω |
| 4.4mm Balanced Output (OS Mode) | |
| Output Power | 1300mW+1300mW @ 32Ω; 520mW+520mW @ 16Ω; 220mW+220mW @ 300Ω |
| SNR | ≥115dB (A-weighted) |
| Output Impedance | <1.5Ω |
| Recommended Impedance | 8 to 350Ω |
| Line Out (RCA) | |
| Level | 2.7Vrms |
| SNR | ≥115dB (A-weighted) |
| Connectivity | |
| Inputs | USB-C, optical, coaxial |
| Outputs | 6.35mm, 4.4mm balanced, RCA line out, coaxial out (USB mode) |
| Physical Specifications | |
| Power Supply | External 12V/2A |
| Dimensions | 147 x 133 x 32.3mm (with feet) |
| Weight | About 420g |
Simcoe Audio Video Installation
Our professional team of designers and installers provide custom design solutions and installation for existing homes and new builds. We work with home owners, home builders and designers to create scalable solutions tailored to you.
Home Theatre & Media Rooms | Home Audio Solutions | AV Automation