SHANLING EC ZERO T R2R Tube Portable CD Player

Specifications:-

Dimensions: 158X150X28mm
Weight: 669g
Screen: 1.68-inch LCD display
USB DAC Support: 768kHz/32bit & DSD512
DAC: 24bit R2R DAC architecture
Digital Filter: OS / NOSExternal
Power Input: USB-C 5V/2A
Bluetooth version: V5.3Bluetooth
Transmitter Codecs:aptX Adaptive, aptX, SBC

3.5mm Headphone Output
Output power:
Transistor:
Low Cain: 57mW@32Ω
High Cain: 158mw@32Ω
High Gain: 330mW@32Ω (External Power)

Tube:
Low Gain: 47mW@32Ω
High Cain:158mW@32Ω
High Gain: 268mW@32Ω (External Power）

THD+N: 0.02%
Dynamic Range: 116dB
Channel Separation: 79dB
Signalto-noise ratio: 115dB
Noise: 111dB (low gain)
USB DAC Frequency Response: 20Hz-40kHz (-0.5dB)
CD PLAY Frequency Response: 20Hz-20kHz (-0.5dB)
Output Impedance: 4.7Ω

4.4mm Headphone Output.
Qutput Power:
Transistor:
Low Gain: 195mW@32Ω
High Cain: 551mW@32Ω
High Cain:1220mW@32Ω (External Power)
Tube:
Low Gain: 195mW@32Ω
High Gain: 551mW@32Ω
High Gain:1087mW@32Ω (External Power)
THD+N: 0.02%
Dynamic Range: 117dB
Channel Separation: 103dB
Signalto-noise ratio: 117dB
Noise: 108dB (low gain)
USB DAC Frequency Response: 20Hz-40kHz(-0.5dB)
CD PLAY Frequency Response: 20Hz-20kHz(-0.5dB)
Output lmpedance: 6.6 Ω

3.5mm Line-Out
Output Voltage:
Transistor: 2.12Vrms
Tube:1.97Vrms
Frequency Response: 20Hz-40kHz(-0.5dB)
THD+N: 0.02%
Signalto-noise ratio: 116dB

4.4mm Line Out
Output Voltage,Transistor: 4.2VrmsTube:3.94Vrms
Frequency Response: 20Hz-40kHz (-0.5dB)
THD+N: 0.02%
Signal-to-noise ratio: 118dB