FiiO K11 R2R
€159.00*
Instant delivery, delivery time: 1-3 days
Product number:
HL02397.1
Product information "FiiO K11 R2R"
A new desktop headphone amplifier with advanced, R2R DAC technology developed by FiiO
- High-performance desktop DAC/AMP
- R2R Fully differential 24-bit R2R resistor array
- NOS/OS Dual-Mode
- Free Switching
- Professionally designed electronic volume control chipset(NJW1195A)
- Supports 32-bit/384kHz PCM and native DSD256 audio signal processing
- Professional audio amplifier circuit 1300mW+1300mW strong power
- Three-stage adjustable gain
- Specially designed low-noise power supply
- 6, 35mm+4.4mm dual headphone output
- High quality Emerald solid-state capacitors
- LCD display
- RGB logo illumination
The new FiiO K11 R2R offers advanced FiiO proprietary R2R DAC technology and versatile connectivity for desktop audio enthusiasts.
Fully differential 24-bit R2R DAC array
FiiO has equipped the K11 R2R with its newly developed fully differential 24-bit R2R resistor array with four channels.
It consists of 48 resistors per channel, totalling 192 high-precision, ultra-thin film resistors with an accuracy of 0.1% and low temperature drift between the four channels.
Thanks to the specially designed audio circuit architecture, it promises a clean and sharp output with a dark background.
NOS/OS dual operating modes
The FiiO K11 R2R has two operating modes, NOS (non-oversampling) and OS (oversampling).
These are freely switchable and offer dual sound characteristics with the device.
In NOS mode, the original sampling rate is retained during signal processing, while in OS mode all signals are oversampled to 384kHz for processing.
NOS mode results in a more musical presentation, while OS mode delivers more detail and clarity.
Powerful amplifier section
FiiO has equipped the K11 R2R with a professionally developed amplifier circuit.
It consists of Ti OPA1642 as a low-pass filter and two SGM8262 operational amplifiers in professional quality.
The K11 R2R has an output power of up to 1300mWx2, which is enough to drive even the most demanding headphones with ease.
It features three-stage amplification modes that allow easy pairing with sensitive and power-hungry devices.
The K11 R2R also utilises the precise NJW1195A digital volume chipset for accurate volume control with low distortion between channels.
Two headphone outputs
The FiiO K11 R2R has two headphone outputs. It consists of an unbalanced 6.35 mm connection and a balanced 4.4 mm output.
You can easily pair different IEMs and headphones with the K11 R2R and enjoy high-resolution music in all its splendour.
True high-resolution audio signal processing
The FiiO K11 R2R supports the decoding of high-resolution audio signals.
It offers full support for PCM and DSD signal processing with up to 32-bit/384 kHz PCM and DSD256 audio signals.
For DSD256, the DSD output mode must be set to native.
It is converted internally to PCM for R2R signal processing.
Professionally developed low-noise power supply
The FiiO K11 R2R has a professionally developed low-noise power supply.
It consists of 17 low-noise LDO precision voltage regulator ICs and 2 DC-DCs that provide a multi-channel power supply.
The external 12 V power supply ensures a clean output with low noise and low distortion. The K11 R2R delivers high quality sound to its users.
Specifications
DAC: fully differential true 24-bit R2R resistor arrays
Main control chip: GD32F303RET6
Output 6.35mm single-ended L+R≥460mW+460mW (32Ω, THD+N＜1%) / L+R≥50mW+50mW (300Ω, THD+N＜1%)
Output 4, 4mm balanced L+R≥1300mW+1300mW (32Ω, THD+N＜1%) / L+R≥220mW+220mW (300Ω, THD+N＜1%)
Inputs: USB Type-C, Coaxial, Optical
Outputs: 1 x 6.35 mm (single-ended) / 1 x 4.4 mm (balanced) / 1 x L/R RCA / 1 x Coaxial
USB input decoding: PCM 384kHz/32-bit / DSD 256
Coaxial input decoding: PCM: 192kHz/24-bit
Optical input decoding: PCM 96kHz/24-bit
Line-Out (LO) mode Power-Out (PO) mode
Display: 1.1-inch LCD VA segment display
Adjustable RGB illumination
Dimensions: 147 x 133 x 32.3 mm
Weight: 420 g
What`s in the box
1x FiiO K11 R2R
1x power supply
1x USB data cable
1x quick start guide
1x 6.3 to 3.5mm jack adapter
Differences - Fiio K11 vs. K11 R2R
The most obvious difference between the R2R and the K11 lies in the chip used.
It was originally built with a CS43198 ΔΣ chip.
Delta Sigma chips are found in many lower-end DAC/AMPs as they offer high bit depth and high performance in terms of manufacturing costs.
The price for this is that THD+N and noise are higher than with an R2R chip.
For this reason, R2R chips are more difficult to manufacture and often much more expensive.
Developing an R2R chip for a low-cost item is not an easy endeavour.
Furthermore, the development of a high-resolution R2R chip that supports 384 kHz/24-bit is a new development that is not yet found in entry-level devices.
To see R2R in a DAC/amplifier for under $200 is a miracle in itself.
What is the difference between R2R and ΔΣ chips, theoretically you can achieve a warmer sound with most R2R DACs without sacrificing the transparency of the higher frequencies.
Although the THD+N and noise floor of the K11 and K11 R2R are very similar, you still get less harmonic distortion, resulting in a more natural reproduction of the high frequencies.
This means that the R2R has a warmer yet more transparent sound.
Other changes include the NJW1195A volume control utilising a resistor ladder potentiometer, meaning a more controlled and consistent volume control.
The output power of both units has not changed and you can still drive any headphones you could before.
The inputs and outputs have also remained the same.
And there is now an OS/NOS mode that allows you to faithfully recreate the waveforms.
Summary
Rather than just offering listeners a product with a new look, FiiO has decided to drastically improve the quality and internals of its entry-level DAC/AMP.
Some companies remake products by sticking a label on them and investing in marketing to offer inferior products at the same price.
This is not the case with FiiO, who have made some great technical improvements with the K11 R2R.
| Color: | Black, Red, Silver |
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Create Your Streaming System
FiiO SR11
€119.00*
Color:
Black
FiiO SR11 WiFi AirPlay audio streamer 1000 Mbps Ethernet connection 2.4G+5G dual-band Wi-Fi Supports 768kHz/32bitDSD256
Comprehensive digital outputs Supports various music apps Customised LCD display Infrared remote control Two USB outputs Supports Airplay/ Roon Expandable functionality via future firmware updates SR11 music streaming receiver The SR11 is a powerful, lossless streaming music receiver, also known as a streamer, that supports various network streaming protocols. In combination with an external decoder, you can easily set up a streaming hi-fi system and enjoy lossless audio streams at a high bit rate. AirPlay streaming protocol Connect to an iPhone, iPad, MacBook, iMac or Mac mini and stream to the SR11 via AirPlay for a smooth and convenient listening experience. Enjoy Roon Ready streaming in the future With Roon, you can conveniently manage both online and local music libraries by enabling fast playback of local music from a NAS or other devices and easy access to the streaming music catalogue. If you have multiple audio systems set up, Roon allows you to control different devices to play different or the same music for a fully integrated and convenient streaming experience. Roon Ready certification is currently being worked on, Roon is running in test mode until then, but without limitation of functions, but the SR11 will not be displayed as SR11 underRoon until then. FIIO will officially announce later when the functionality is ready. Comprehensive digital outputs The optical, coaxial, USB Type-A and USB Type-C digital outputs ensure that you can easily connect the device of your choice for real-time music streaming. Listen to hi-fi music without having to rely on cables. Powerful multi-core processor with ultra-low power consumption The SR11 is equipped with the powerful X2000 multi-core processor, with one core based on the unique XBurst2 dual-logic core and another small XBurst0 core. The processor has excellent processing power, strong real-time control capabilities and extremely low power consumption. The chip ensures precise processing of audio signals for stable and smooth music playback. Stable connection, wired and wireless The Ethernet connection supports speeds of up to 1000 Mbps over wired networks for fast and stable data transfer. The AP6256 Wi-Fi module supports both 2.4 GHz and 5 GHz dual-band wireless networks, providing stable wireless transmission of lossless audio. Customised LCD display, intuitive layout and easy operation On the screen you can quickly see the operating mode of the device, the network status and the current volume. The rotary knob allows you to easily perform various operations, giving you full control. Infrared remote control included, ultimate convenience The supplied infrared remote control allows you to control over long distances and makes it extremely easy to select input, output, volume and other functions with just one click. And no pairing is required - the remote control is ready to use right out of the box. Slim and petite, easy to store anywhere The slim and sleek aluminium alloy body features a separately moulded silicone anti-slip pad for better stability, the SR11 takes up minimal space and can be placed anywhere with flexibility. Powerful functionality, constantly updated FIIO's proven development team will continue to provide firmware upgrades for the SR11, adding new features such as
Bluetooth reception
Local playback
FIIO LINK
DLNA Specifications: Dimensions: 157x133x32mm Display: Custom LCD Wired network: 1000Mbps Ethernet port Wireless network: 2.4G+5G dual-band Wi-Fi 802.11 b/g/n/ac USB outputs: USB-A 1, Type-C 1, different connector types but with the same functionality USB output formats: PCM 44.1kHz~768kHz; DSD64~DSD256 (DoP) S/PDIF outputs: Optical 1, Coaxial 1 Coaxial output formats: PCM 44.1kHz~192kHz, DSD64 Optical output formats: PCM 44.1kHz~192kHz Power input: Type-C, 5V/2A, special power supply included Wired network is plug-and-play, wireless networks can be used after successful configuration What`s in the box: 1x SR11 1x power supply unit 1x infrared remote control 1x USB cable 1x quick start guide