FiiO K5 Pro ESS
€158.33 ex.TAX
Parameters
| General specifications | |||
| Name / Model No. | K5Pro | Hardware solution | DAC: ES9038Q2M，USB: XMOS XU208 |
| Color | Black | Volume Scroll | Potentiometer+ADC Sampling |
| Weight | ≈480g | FiiO Control | Unsupported |
| Bluetooth format indication | Unsupported | Sampling rate indication | Blue：44.1KHz/48KHz Yellow：88.2/96/176/352.8/384/705.6/768KHz Green：DSD64/128/256/512 |
| Firmware upgrade | System firmware and XMOS can be upgraded via USB | Recommended headphone impedance | 16~300Ω |
| Maximum supported sampling rate | 768kHz-32bit/DSD512（USB DAC） | ||
| 192kHz-24bit（COAX） | |||
| 96KHz-24bit（OPT） | |||
| Buttons and interfaces | |||
| Buttons | Toggle switch*2（Gain switch+ Input switch） | USB | B type USB |
| Coaxial in | RCA sockets | Optical in | Optical fiber socket |
| Line out | RCA sockets | Phone out | 6.35mm |
| Power parameters | |||
| Power supply | DC15V 1.5A | Battery capacity | / |
| Audio parameters | |||
| Headphone output performance parameters（6.35mm，UAC/SPDIF IN) | |||
| Output power | Output impedance | ＜1.2Ω | |
| 1250mW(32Ω，THD+N＜1%） | Crosstalk | ≥80dB | |
| 140mW(300Ω，THD+N＜1%） | Output level | 6.4Vrms | |
| THD+N | ＜0.0009%(1kHz/-10dB@32Ω) | SNR | ≥118dB (dbA) |
| Frequency response | 20Hz~50kHz: (-2dB) | Noise floor | Gain=H，＜8uV（dbA） Gain=M，＜6uV（dbA） Gain=L，＜4uV（dbA） |
| 20Hz-20KHz：(-0.2dB) | |||
| Headphone output performance parameters（6.35mm，Line IN) | |||
| Output power | Output impedance | ＜1.2Ω | |
| 1500mW(32Ω，THD+N＜1%） | Crosstalk | ≥64dB | |
| 170mW(300Ω，THD+N＜1%） | Output level | 6.9Vrms | |
| THD+N | ＜0.003%(1kHz/32Ω) | SNR | ≥118dB (dbA) |
| Frequency response | 20Hz-20KHz：(-0.2dB) | Noise floor | Gain=H，＜8uV（dbA） Gain=M，＜6uV（dbA） Gain=L，＜4uV（dbA |
| Line output performance parameters（RCA，UAC/SPDIF/Line IN) | |||
| THD+N | ＜0.0012%(1kHz/-10dB@10kΩ，UAC/SPDIF) | SNR | ≥115dB (dbA) |
| ＜0.0008%(1kHz/10kΩ，Line IN) | Noise floor | ≤3.5uV（dbA） | |
| Crosstalk | ≥95dB (1kHz/10kΩ) | Output level | 2Vrms (1kHz/10kΩ) |
| Frequency response | 20Hz~50kHz: (-2dB) | ||
| 20Hz-20KHz: (-0.2dB) | |||
Frequency Response Diagram of Curve 1.
Test conditions: USB DAC input, -5dB sinusoidal signal,
20Hz-20kHz, headphone output (32Ω load)
red: left channel; Blue: right channel
Frequency Response Diagram of Curve 2.
Test conditions: Spdif input, -5dB sinusoidal signal,
20Hz-20kHz, headphone output (32Ω load)
red: left channel; Blue: right channel
Frequency Response Diagram of Curve 3.
Test conditions: Line input, -5dB sinusoidal signal,20Hz-20kHz,
headphone output (32Ω load)
red: left channel; Blue: right channel
Distortion Diagram of Curve 1.
Test conditions: USB DAC input, -10dB sinusoidal signal,
20Hz-20kHz, Phone output (32Ω load)
red: left channel; Blue: right channel
Distortion Diagram of Curve 2.
Test conditions: Spdif input, -10dB sinusoidal signal,
20Hz-20kHz, Phone output (32Ω load)
red: left channel; Blue: right channel
Distortion Diagram of Curve 3.
Test conditions: USB DAC input, -10dB sinusoidal signal,
20Hz-20kHz, Line output (10KΩ load)
red: left channel; Blue: right channel
Distortion Diagram of Curve 4.
Test conditions: Spdif input, -10dB sinusoidal signal,
20Hz-50kHz, Line output (10KΩ load)
red: left channel; Blue: right channel
Comparisons
| K5Pro | K5Pro ESS | |||
| Ports | USB port | USB B | USB B | |
| Line out | RCA Line Out | RCA Line Out | ||
| Line in | RCA Line in | RCA Line in | ||
| Opt in | Y | Y | ||
| Coax in | Y | Y | ||
| Phone out | 6.35mm | 6.35mm | ||
| Configuration | Input switch | USB DAC IN/Line IN/SPDIF IN | USB DAC IN/Line IN/SPDIF IN | |
| Gain switch | High/Medium/Low | High/Medium/Low | ||
| Volume knob | Volume adjustment + Power switch | Volume adjustment + Power switch | ||
| Indicator | Sampling rates indication:
≤48K：Blue ＞48K：Yellow DSD：Green |
Sampling rates indication:
≤48K：Blue ＞48K：Yellow DSD：Green |
||
| DAC | AK4493 | ES9038Q2M | ||
| Volume IC | NJW1195AV | NJW1195AV | ||
| USB | XMOS208 | XMOS208 | ||
| MCU | STM8S003F3U6 | UM8005 | ||
| Supported Sampling Rates | USB in | PCM: Up tp 768KHz/32bit
DSD: DSD64/DSD128/DSD256/DSD512 |
PCM: Up to 768KHz/32bit
DSD: DSD64/DSD128/DSD256/DSD512 |
|
| Coax in | Up to 192KHz/24bit | Up to 192KHz/24bit | ||
| Opt in | Up to 96KHz/24bit | Up to 96KHz/24bit | ||
| USB Audio Mode | UAC2.0 | UAC2.0 | ||
| Others | Dimensions | ≈120x130x55mm | ≈120x130x55mm | |
| Weight | ≈436g | ≈480g | ||
| Audio parameters | Output level
（THD＜1%） |
PO | USB IN/SPDIF IN：6.3V/6.3V(1.227W）
Line IN：6.9V/6.9V |
USB IN/SPDIF IN：6.8V/6.8V（1.442W）
Line IN：6.93V/6.916V |
| LO | USB IN/SPDIF IN/Line IN：2.2V/2.2V | USB IN/SPDIF IN/Line IN：2.2V/2.2V | ||
| Noise floor | PO | USB IN/SPDIF IN/Line IN：
Gain=H，＜8uV（dBA） Gain=M，＜6uV（dBA） Gain=L，＜3uV（dBA） |
USB IN/SPDIF IN/Line IN：
Gain=H，＜8uV（dBA） Gain=M，＜6uV（dBA） Gain=L，＜4uV（dBA） |
|
| LO | USB IN/SPDIF IN/Line IN：≤3.5uV（dBA） | USB IN/SPDIF IN/Line IN：≤3.5uV（dBA） | ||
| SNR (dBA+lowpass) | PO | ≥118dB | ≥118dB | |
| LO | ≥115dB | ≥115dB | ||
| Distortion/THD+N | PO | USB IN/SPDIF IN：＜0.003%（1KHz)
Line IN：＜0.007%(1KHz） |
USB IN/SPDIF IN：＜0.0012%（1KHz)
Line IN：＜0.003%（1KHz) |
|
| LO | USB IN：＜0.0022%
SPDIF IN/Line IN：＜0.0013% |
USB IN：＜0.0015%
SPDIF IN/Line IN：＜0.0008% |
||
| Frequency response | PO/LO： 20Hz-20KHz：Attenuation：0.2dB | PO/LO: 20Hz-20KHz：Attenuation：0.2dB | ||
| Gain | H/M/L:16dB/12dB/6dB | H/M/L:16.6dB/12dB/6dB | ||
| Crosstalk | PO：63.3dB（AUX_IN）
LO：90dB （AUX_IN） PO：80dB（USB DAC/OPT/COX） LO：90dB （USB DAC/OPT/COX） |
PO：64dB（AUX_IN）
LO：96dB （AUX_IN） PO：80dB（USB DAC/OPT/COX） LO：98dB （USB DAC/OPT/COX） |
||
| Channel balance | PO，±0.1dB
LO，±0.1dB |
PO，±0.1dB
LO，±0.1dB |
||
| MAX output voltage | PO：19.5Vp-p
LO：56.2Vp-p |
PO：19.5Vp-p
LO：6.2Vp-p |
||
| DNR | PCM:110dB | PCM:113dB | ||
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