FIIO K11/K11 R2R, Truly Balanced, Truly Brilliant! Desktop DAC and Headphone Amplifier

[Edward Ng]

Actually I have a question...... it says 1 day left till the release, isn't this released already?

Or do you mean release for the North American market?

Will I start seeing them in North American shops?

I have this exact same question. Or are people confusing the already out sigma delta K11 with K11 R2R?

-Ed

 

[Hyde00]

I have this exact same question. Or are people confusing the already out sigma delta K11 with K11 R2R?

-Ed

I mean I've seen a few reviews out already from people who ordered directly inside China through TaoBao or something along those lines, so it's definitely out already.

That's why I'm guessing it might be a count down to North American release...... I guess we'll see what the FiiO rep says......

 

[FiiO]

Actually I have a question...... it says 1 day left till the release, isn't this released already?

Or do you mean release for the North American market?

Will I start seeing them in North American shops?

Dear friend,

Hi, the K11 R2R will be released for oversea market tomorrow.
And you will be able to find one in North American shops at the end of this month if everything goes well.

Best regards

 

[Angel III]

Is it possible to use it only as a DAC?

 

[Edward Ng]

Is it possible to use it only as a DAC?

It has line level outs in the back, so yes. That’s how I plan to use it.

-Ed

 

[Angel III]

Thanks, let me know if it's a good quality DAC.

 

[Hyde00]

Dear friend,

Hi, the K11 R2R will be released for oversea market tomorrow.
And you will be able to find one in North American shops at the end of this month if everything goes well.

Best regards

Nice that's good to hear, thanks for letting us know!

 

[Edward Ng]

Nice that's good to hear, thanks for letting us know!

This explains why I can’t find any reviews in English! I can speak two dialects of Chinese (but not Mandarin), but I can’t read or write in Chinese, so I am unable to search up reviews in Chinese, and even if I could, unless it’s a video in Cantonese, I have no chance of understanding it anyway.

-Ed

 

[JjB067]

This explains why I can’t find any reviews in English! I can speak two dialects of Chinese (but not Mandarin), but I can’t read or write in Chinese, so I am unable to search up reviews in Chinese, and even if I could, unless it’s a video in Cantonese, I have no chance of understanding it anyway.

-Ed

There is a written review by littlenezt on another HeadFi thread called FIIO K11 R2R, there is also a YouTube video version of it but in Indonesian only !

 

[Edward Ng]

There is a written review by littlenezt on another HeadFi thread called FIIO K11 R2R, there is also a YouTube video version of it but in Indonesian only !

Okay, I did see that one, but nothing else.

-Ed

 

[Viper GTS]

Got a shipment notification from HiFiGo last night, wasn’t expecting that. I got lucky and happened to catch the pre-order page the day it went up, but thought I had overlooked the ‘late August’ wording in my haste to place the order. Pleasantly surprised in any case to see a tracking number active already.

 

[frkasper]

It is also live on AE: https://www.aliexpress.com/item/3256807183264948.html

Pulled the trigger on a Silver unit.

 

[Hyde00]

Got a shipment notification from HiFiGo last night, wasn’t expecting that. I got lucky and happened to catch the pre-order page the day it went up, but thought I had overlooked the ‘late August’ wording in my haste to place the order. Pleasantly surprised in any case to see a tracking number active already.

LOL damn I saw the late August and I cancelled my order. Figure I could probably pick one up elsewhere faster.

Maybe I should've stuck to it.

 

[FiiO]

True 24bit R2R DAC and Headphone Amplifier K11 R2R Is Officially Released!

Fully differential true 24bit R2R resistor array DAC

FIIO’s newly self-developed four-channel fully differential 24bit R2R DAC consists of 2 x 48 precision thin-film resistor arrays per channel, totaling 192 resistors with 0.1% tolerance and low temperature drift (30ppm). This configuration delivers a unique and charming sound. In addition, the K11 R2R employs a fully differential architecture, resulting in lower noise, with fewer FFT harmonics and a darker music background compared to typical ones.

Support for PCM 384kHz/24bit and DSD256 decoding (DSD256 requires setting the DSD output mode to Native on the source device, internally converting to PCM before being decoded by the R2R resistor arrays), means the K11 R2R can easily handle high-precision audio signals and fully exhibit the details within, providing you with an excellent audio experience.

Dual NOS/OS modes, double the fun

The K11 R2R comes with dual modes of NOS and OS. Double the fun with different modes.

NOS (Non-Oversampling) Mode: Maintains the original sampling rate for decoding, preserving authentic sound and allowing you to enjoy an organic and captivating musical experience.

OS (Oversampling) Mode: Upsamples globally to a high sampling rate of 384kHz, for superior audio performance and even more refined, clear sound.

Specially-designed audio circuit and power supply

In the K11 R2R, the audio signal is transmitted via 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. Then, it passes through two Ti OPA1642 op-amps for low-pass filtering and single-ended analog signal converting, and transmits to the NJW1195A electronic volume control chip for precise volume adjustment. The output stage uses two SGM8262 op-amps for 4-way phase inversion and amplification, resulting in outputs of singed-ended and balanced analog signals. The audio circuit features gain controls. It is complemented by a specially-designed headphone protection circuit and a pop noise elimination system, ensuring the audio circuit is both high quality in sound produced and reliable.

The K11 R2R uses up to 17 low-noise LDO precision regulator IC and 2 DC-DC converters, providing multi-channel specialized power supply of －9V, 8V, ±7.5V, ±6V, 5.4V, 3.3V, 1.8V, and 1.2V. These are combined with an external custom 12V switching power supply to ensure the purity of the power supplied and provide a solid foundation for stronger power output.

1300mW+1300mW high output power, 3 gain levels and 3 volume curves, high-quality electronic volume control NJW1195A, high-quality Beryl solid capacitors... For more impressive features of the K11 R2R, please refer to the product page.



* The K11 R2R is available on our AliExpress Official Store. Click the link to take it home right away: https://www.aliexpress.com/item/3256807183264948.html



Best regards,

Guangzhou FIIO Electronics Technology Co., Ltd.

 

[Edward Ng]

Just got tracking code for might K11 R2R as well. Seems they (HiFiGo) were overly conservative with that August estimate. Perhaps if I’m lucky, my second pair of Fosi V3 Monos, which I preordered (albeit direct from Fosi), will also come sooner than was stated (the pair I already have were Kickstarter rewards).

-Ed