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You are comparing the fiio k11 dac headphone amplifier vs k11 compact desktop r2r. Both units are FiiO desktop DAC and amplifier combinations designed for home or PC audio setups. They share a similar compact form factor and offer balanced headphone outputs for high-resolution listening. The main difference lies in their internal architecture. One uses a standard digital-to-analog conversion method, while the other employs a resistor ladder network for its audio processing.
DAC Architecture
Not listed
24-Bit R2R
Operating Modes
Not listed
NOS/OS
Display
VA display
Not listed
Dimensions
5.11 x 5.11 x 0.59 inches
Not listed
Headphone Outputs
6.35mm and 4.4mm
6.35mm and 4.4mm
Choose the first if
- You want a visible screen to monitor sampling rates and volume levels.
- You prefer a very low profile device that sits flat on your desk.
- You need standard digital inputs like optical and coaxial for TV connections.
Choose the second if
- You prefer the analog sound character of a resistor ladder network.
- You want to switch between non-oversampling and oversampling modes.
- You prioritize a dedicated low-noise power supply with multiple regulators.
Verdict
Choose the K11 Small Desktop DAC/Amp if you value a compact footprint and a status display for easy monitoring. Pick the K11 Compact Desktop R2R if you are an audiophile who prefers the specific tonal qualities of an R2R architecture and dual operating modes. Both devices provide balanced outputs for driving demanding headphones effectively.
FiiO K11 DAC vs R2R Specs
DAC architecture
Edge: FiiO K11 Desktop R2R DAC Amp
Product B uses a fully-differential 24-bit R2R resistor array with 192 high-precision resistors. It offers NOS and OS modes for distinct sound signatures. Product A does not list its DAC type in the provided data. The R2R design in Product B promises a dark background and crisp output. This specific architecture choice defines the core signal processing method for Product B, whereas Product A's internal conversion method remains unspecified in the available specifications. You should check the product page for Product A's exact DAC chip details if this matters to your listening preferences.
Display and control
Edge: FiiO K11 Small Desktop DAC/Amp
Product A includes a high-definition VA display screen. It shows sampling rate, volume, gain, and output mode clearly. Product B does not mention having a display in its features or specs. This screen on Product A makes adjusting settings more intuitive without needing external software. If you prefer visual feedback for your current device status, Product A provides this hardware interface. Product B relies on physical controls or software for adjustments, as no screen is listed in its data. This is a clear hardware difference between the two units.
Amplifier circuitry
Edge: FiiO K11 Desktop R2R DAC Amp
Product B details its amp section with Ti OPA1642 filters and dual SGM8262 operational amplifiers. It lists an output power of up to 1300mWx2. Product A does not specify its amplifier components or power output in the provided data. Product B also uses an NJW1195A digital volume chipset for precise adjustment. The specific op-amps and power ratings in Product B offer transparency into its driving capability. For Product A, these technical amplifier details are absent from the current specification list. You may need to verify Product A's amp specs elsewhere if power is critical.
Physical dimensions
Edge: FiiO K11 Small Desktop DAC/Amp
Product A has specific dimensions listed: 5.11 inches in width and length, with a height of 0.59 inches. Product B is listed as size S but lacks precise dimensional measurements in the provided data. Product A's slim 0.59-inch height allows it to sit low on your desk. The exact footprint of Product A is known, while Product B's size is only vaguely described as small. If you have limited desk space, Product A's exact measurements help you plan your setup more accurately. Product B's exact footprint remains unspecified in the current data set.
Audio format support
Edge: FiiO K11 Desktop R2R DAC Amp
Product B supports PCM up to 32-bit/384kHz and DSD256. It processes DSD by converting it internally to PCM for the R2R array. Product A does not list its maximum audio format support in the provided data. Both units handle high-resolution audio, but Product B explicitly states DSD256 capability. If you use DSD files frequently, Product B's specifications confirm this support. For Product A, the maximum bit depth and sample rate are not detailed in the current information. You should check Product A's full specs if high-res DSD is a priority for your library.
Connectivity options
Edge: FiiO K11 Small Desktop DAC/Amp
Product A supports USB, coaxial, and optical inputs. It offers 4.4mm balanced and 6.35mm single-ended headphone outputs, plus RCA line-out and coaxial output. Product B lists dual headphone ports (6.35mm and 4.4mm) but does not specify its input types in the provided data. Product A provides more visible output options including RCA line-out. The input variety for Product B is not listed in the current specifications. If you need RCA line-out or specific input types, Product A's listed connections are more detailed. Product B's input configuration remains unspecified in the available data.
Choose the right FiiO K11 for you
Listeners who want distinct sound modes
Our pick: FiiO K11 Desktop R2R DAC Amp
Product B features NOS and OS dual operating modes. You can switch between them to change the sound signature. NOS maintains the original sampling rate for a musical presentation. OS oversamples signals to 384kHz for more detail and clarity. This flexibility lets you tune the audio character to your preference without needing external processing.
Users needing clear visual status feedback
Our pick: FiiO K11 Small Desktop DAC/Amp
Product A includes a high-definition VA display screen. It shows the current sampling rate, volume, gain, and output mode. This makes operation simpler and more intuitive. You can see the device status clearly without guessing. The screen has high contrast and a long lifespan, providing a cleaner look to your desktop setup while keeping you informed.
Those driving demanding headphones
Our pick: FiiO K11 Desktop R2R DAC Amp
Product B offers an output power rating of up to 1300mWx2. It has three-level gain modes for easy pairing with sensitive or high-power gear. The amp section uses professional-grade operational amplifiers and precise digital volume chipsets. This combination ensures clean output with low distortion, making it adequate for driving demanding headphones with ease.
FiiO K11 Small Desktop DAC/Amp
Best for: Balanced output in a small desktop footprint
- Headphone Outputs
- 4.4mm balanced, 6.35mm
- Output Power
- 1400mW
- Audio Inputs
- USB, optical, coaxial
- Max PCM Resolution
- 384kHz / 24-bit
- DSD Support
- DSD256
- Type
- DAC/Amp
The FiiO K11 is a small desktop DAC and headphone amplifier with an aluminum alloy body. It supports USB, coaxial, and optical inputs. You get balanced 4.4mm and 6.35mm headphone outputs plus RCA line-out. A VA display shows sampling rate and volume. This compact unit suits users who want balanced output in a slim design for home or office use.
- Balanced 4.4mm headphone output
- VA display for status monitoring
- Aluminum alloy body construction
- Multiple input options including USB
- Slim 0.59-inch height limits internal component space
- Small size may restrict heat dissipation compared to larger chassis
- Single 1-gram weight perception suggests minimal mass for vibration damping
- You need a balanced 4.4mm output for high-impedance headphones
- You have limited desk space and need a slim profile
- You want a VA display to monitor sampling rates
- You require a large chassis for superior heat management
- You need a high-resolution display with advanced graphics
- You prefer a heavier build for maximum stability
Verdict: FiiO K11 Small Desktop DAC Amp fits users who prioritize balanced connectivity and a slim footprint. It delivers essential DAC and amplification features in a compact aluminum enclosure.
FiiO K11 Desktop R2R DAC Amp
Best for: Compact desktop setups needing balanced output
- Headphone Outputs
- 6.35mm single-ended, 4.4mm balanced
- Output Power
- Up to 1300mWx2
- DAC Architecture
- 24-bit R2R
- Max PCM Resolution
- Up to 32-bit/384kHz
- DSD Support
- DSD256
- Color
- Black
The FiiO K11 Compact is a desktop DAC and headphone amplifier featuring a fully-differential 24-bit R2R resistor array. It offers dual operating modes for NOS or oversampling processing and supports PCM up to 32-bit/384kHz and DSD256. The amp section delivers up to 1300mW per channel with three gain levels. It includes dual headphone outputs and a low-noise power supply for clean audio signal processing.
- Fully-differential 24-bit R2R DAC array with 192 high-precision resistors
- Output power up to 1300mWx2 with three-level gain modes
- Supports PCM 32-bit/384kHz and DSD256 audio signals
- Dual headphone outputs: 6.35mm single-ended and 4.4mm balanced
- NOS and OS dual operating modes for sound customization
- Smaller desktop size compared to the standard K11 model
- Lower output power rating than the standard K11 amplifier
- Internal conversion of DSD256 to PCM for R2R processing
- You want a compact desktop unit with R2R architecture
- You need balanced 4.4mm headphone output capability
- You prefer NOS or OS sound processing modes
- You require the maximum power output of the standard K11
- You prefer a larger desktop footprint for heat dissipation
- You need native DSD processing without PCM conversion
Verdict: FiiO K11 Compact Desktop R2R DAC suits listeners who prioritize R2R sound character and balanced connectivity in a smaller form factor. It is ideal for users with sensitive or demanding headphones who need precise volume adjustment and low-noise power delivery.
Specifications side by side
| Spec | FiiO K11 Small Desktop DAC/Amp | FiiO K11 Desktop R2R DAC Amp |
|---|---|---|
| Headphone Outputs | 4.4mm balanced, 6.35mm | 6.35mm single-ended, 4.4mm balanced |
| Output Power | 1400mW | Up to 1300mWx2 |
| Audio Inputs | USB, optical, coaxial | – |
| DAC Architecture | – | 24-bit R2R |
| Max PCM Resolution | 384kHz / 24-bit | Up to 32-bit/384kHz |
| DSD Support | DSD256 | DSD256 |
| Features | 4.4mm Balanced | – |
| Color | black / black | Black |
| Form Factor | – | Desktop |
| Type | DAC/Amp | DAC/Amp |
| Output | Balanced | – |
| Dimensions | 5.11 × 5.11 × 0.59 inches | 9.72 × 7.76 × 2.4 inches |
| Weight | 2.01 pounds | 2.06 pounds |
| Size | Small | S |
| Model | K11 | K11 |
Frequently asked questions
Which FiiO K11 is smaller?
The FiiO K11 Small Desktop DAC/Amp is designed for a compact footprint. It measures 5.11 inches in width and length, with a height of just 0.59 inches. The other model is listed as size S, but specific dimensions are not provided. If you need a slim profile, the first option offers confirmed measurements for tight desk spaces.
Does the FiiO K11 have a balanced output?
Yes, both units support balanced output. The FiiO K11 Small Desktop DAC/Amp explicitly features a 4.4mm balanced connection. The FiiO K11 Desktop R2R DAC Amp is also noted for its balanced headphone output. This allows you to connect balanced headphones for potentially improved channel separation and power delivery.
What is the difference in DAC technology?
The FiiO K11 Desktop R2R DAC Amp uses a fully-differential 24-bit R2R resistor array with 192 high-precision resistors. It offers NOS and OS modes for distinct sound signatures. The FiiO K11 Small Desktop DAC/Amp does not list its specific DAC type in the provided data. This makes the R2R model unique in its architecture.
Can I switch sound modes on the FiiO K11?
Only the FiiO K11 Desktop R2R DAC Amp offers switchable sound modes. It features NOS and OS dual operating modes. NOS maintains the original sampling rate for a musical presentation. OS oversamples for a different character. The FiiO K11 Small Desktop DAC/Amp does not mention these modes in the available specifications.
Are both units desktop DACs and amps?
Yes, both devices are classified as desktop DAC and amplifier combinations. They are designed for home or PC audio setups. The FiiO K11 Small Desktop DAC/Amp fits users prioritizing balanced connectivity. The FiiO K11 Desktop R2R DAC Amp suits those needing R2R sound character. Both serve as complete audio processing units for your desk.
What colors are available for the FiiO K11?
The FiiO K11 Small Desktop DAC/Amp is available in black. The FiiO K11 Desktop R2R DAC Amp is also listed in black. Both units feature a consistent dark aesthetic suitable for modern desktop setups. No other color options are mentioned in the provided product data.
Which model is better for sensitive headphones?
The FiiO K11 Desktop R2R DAC Amp is ideal for sensitive headphones. It provides precise volume adjustment and low-noise power delivery. This makes it suitable for demanding headphones that require clean signal amplification. The FiiO K11 Small Desktop DAC/Amp focuses on compactness and balanced output without specifying noise performance metrics.
Is the FiiO K11 portable?
No, both models are desktop units. The FiiO K11 Small Desktop DAC/Amp is described as having a small desktop footprint. The FiiO K11 Desktop R2R DAC Amp is also a desktop form factor. They are designed for stationary use in home or office environments rather than portable on-the-go listening.