K5PRO ESS_parameters

K5Pro ESS

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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）
Frequency response	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)
THD+N	＜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)
Frequency response	20Hz-20KHz: (-0.2dB)