Features Product Description
Additional Information
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| SPECIFICATIONS | |
| Brand | FIIO |
| Series | DACs and AMPs |
| Model | K11 R2R |
| Hardware solution | SoC: GD32F303RE, DAC: FIIO-developed R2R DAC, USB decoding: SA9312L, AMP: SGM8262-2*2 |
| Volume control | Volume knob |
| Weight | About 420g |
| Dimensions | 147x133x32.3mm (including feet) |
| Gain | L/M/H |
| Adaptive impedance | PO: 8-150Ω, BAL: 8-350Ω |
| Driver-free mode (switch mode) | Supported |
| Oversampling setting | OS/NOS |
| FIIO Control | N/A |
| Max supported sampling rate | 384kHz-32bit/DSD256 (USB DAC) |
| Sampling rate indication | LOGO indicator light shows as default: Cyan: 48KHz and below/Yellow: above 48kHz/Green: DSD |
| Show on display screen 192kHz-24bit (Coaxial), 96kHz-24bit (Optical) | |
| Firmware upgrade | Supports upgrade through USB |
| Buttons and Ports | |
| Knob | Encoder knob (including volume adjusting and menu confirming) |
| USB | Type-C (data transmission) |
| Single-ended line-out | RCA port |
| Digital optical in | Optical port |
| Digital coaxial in | RCA port |
| Digital coaxial out | RCA port (only works in USB mode) |
| Balanced out | Standard 4.4mm port |
| Headphone out | Standard 6.35mm port |
| Power Supply Parameters | |
| Power supply | DC 12V/2A |
| Battery capacity | No battery |
| Audio Parameters | |
| THD N & Noise (Line-out, OS mode) | About 0.025% (1kHz/0dB@10KΩ) |
| SNR (Line-out) | ≥115dB (A-weighted) |
| Crosstalk (Line-out) | ≥111dB |
| Noise floor (Line-out) | ＜5.1uV (A-weighted) |
| Frequency response (Line-out) | 20Hz-50kHz: damping＜1.2dB, 20Hz-20KHz: damping＜0.2dB |
| Dynamic range (Line-out) | ≥107dB |
| Line output level | 2.7Vrms |
| THD N (Headphone out, 6.35mm) | About 0.025% (1kHz/0dB@32Ω) |
| Output power (6.35mm) | L R≥660mW 660mW (16Ω, THD N＜1%), L R≥460mW 460mW (32Ω, THD N＜1%), L R≥50mW 50mW (300Ω, THD N＜1%) |
| SNR (Headphone out, 6.35mm) | ≥115dB (A-weighted) |
| Noise floor (Headphone out, 6.35mm) | ＜7.2uV (A-weighted) |
| Channel crosstalk (6.35mm) | ≥72dB |
| Dynamic range (6.35mm) | ≥107dB |
| Frequency response (6.35mm) | 20Hz-50kHz: damping＜1.3dB, 20Hz-20KHz: damping＜0.2dB |
| Output impedance (6.35mm) | ＜1Ω |
| Peak output voltage (6.35mm) | 11Vp-p |
| THD N (Headphone out, 4.4mm) | About 0.025% (1kHz/-11.6dB@32Ω) |
| Output power (4.4mm) | L R≥520mW 520mW (16Ω, THD N＜1%), L R≥1300mW 1300mW (32Ω, THD N＜1%), L R≥220mW 220mW (300Ω, THD N＜1%) |
| SNR (Headphone out, 4.4mm) | ≥115dB (A-weighted) |
| Noise floor (Headphone out, 4.4mm) | ＜14.1uV (A-weighted) |
| Channel crosstalk (4.4mm) | ≥107dB |
| Dynamic range (4.4mm) | ≥107dB |
| Frequency response (4.4mm) | 20Hz-50kHz: damping＜1.3dB, 20Hz-20KHz: damping＜0.2dB |
| Output impedance (4.4mm) | ＜1.5Ω |
| Peak output voltage (4.4mm) | 23Vp-p |
| Warranty Information | |
| Warranty | 1 Year Warranty |
| Manufacturer's Site | Visit the manufacturer's website |
|---|---|
| Product Link | Visit the manufacturer's page for this product |
- Awesome Product - Corne, 17 February 2025
Got my Fiio k11 R2R a few days ago, Setup was easy, Product is working well, happy with purchase. Goes well with my Sennheiser HD560s, which i also got from wootware.
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