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FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black)
- 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
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FiiO K11 R2R Desktop DAC & Headphone Amplifier – Black
The FiiO K11 R2R brings the warm, natural, analog-like sound of a true R2R resistor-ladder DAC to your desk in a compact, affordable package. At its heart is FiiO's self-developed, four-channel, fully differential 24-bit R2R DAC, built from 192 precision thin-film resistors with 0.1% tolerance and low 30ppm temperature drift.
Up to 1300mW + 1300mW of balanced power, three gain levels, and switchable NOS/OS modes let the K11 R2R drive everything from sensitive IEMs to demanding headphones up to 350Ω, while USB, optical, and coaxial inputs plus RCA line output make it the center of any desktop system.
Key Features
- Fully differential true 24-bit R2R DAC with 192 precision thin-film resistors
- Switchable NOS (non-oversampling) and OS (oversampling up to 384kHz) modes
- USB decoding up to PCM 384kHz/32-bit and native DSD256
- Up to 1300mW + 1300mW (32Ω) from the 4.4mm balanced output
- 6.35mm single-ended and 4.4mm balanced headphone outputs
- USB Type-C, optical, and coaxial digital inputs; RCA line output
- NJW1195A electronic volume control with three gain levels and independent volume curves
- FPGA-processed digital audio bridge and SGM8262 output stage
- 17 low-noise LDO regulators and high-quality solid-state capacitors
- High-contrast LCD display, multi-function volume knob, and adjustable RGB logo light
True R2R Sound
Unlike conventional delta-sigma chips, the K11 R2R converts audio through a discrete resistor ladder, delivering a smooth, textured, and natural presentation loved by listeners seeking an analog feel.
Power for Your Headphones
The amplifier stage pushes 1300mW per channel balanced into 32Ω, with three gain settings so you can pair it with sensitive IEMs or power-hungry full-size headphones.
Protected and Clean
A carefully designed low-noise power supply, headphone protection circuitry, and pop-noise elimination keep your audio clean and your headphones safe.
Specifications
| Brand | FiiO |
| Type | Desktop DAC / Headphone Amplifier |
| DAC | Fully differential 24-bit R2R resistor array (192 resistors, 0.1% tolerance) |
| Operating Modes | NOS / OS |
| USB Decoding | PCM 384kHz/32-bit, DSD256 |
| Optical / Coaxial Decoding | PCM 192kHz/24-bit |
| Inputs | USB Type-C, Optical, Coaxial |
| Outputs | 6.35mm single-ended, 4.4mm balanced, RCA line out, coaxial |
| Output Power (4.4mm BAL) | ≥1300mW + 1300mW (32Ω); ≥220mW + 220mW (300Ω) |
| Output Power (6.35mm SE) | ≥660mW + 660mW (16Ω); ≥460mW + 460mW (32Ω) |
| SNR | ≥115dB (A-weighted) |
| THD+N | Approx. 0.025% |
| Line Output Level | 2.7Vrms |
| Recommended Headphone Impedance | Up to 350Ω |
| Power | External 12V DC adapter |
| Color | Black |
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by 6Ave Return Policy
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