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