Topping TP30 MARK2 MK II USB DAC Headphone Amplifier

Technial specifications: Analog audio input: RCA * 1 (one stereo input)
Digital audio input: interface
Power amplifier output: Banana jacks, BTL output
Amp output interface: 3.5 mm headphone jack
Decoder sampling: 16 bit
Decoder sampling frequency:48 KHZ
Single weight: about 530 g
Size (including bulge): 17.7 CM *12.2 CM * 3.8 CM
Package contained:
TP30 - MARK2*1
12V3A power adapter*1
USB cable*1
Instruction Manuel*1

AMP parameter:
Impedance range:4-8 ohms load
Maximum output power of 16.3 W (RL = 4 ohms, THD + N = 10%)
9.7 W (RL = 8 ohms, THD + N = 10%)
0.2 ohms output impedance
Minimum distortion: 0.003%
Typical distortion: (@ 1 KHZ) 0.012%
Frequency response: 20-20 KHZ+- 0.6 dB
Input sensitivity:390 MVRMS
At the end of s/n < 1 mv
Gain: (@ 1 KHZ)28dB

Headphone amp parameter:
Impedance range:16-300 ohms
Maximum power output: 140 mw (RL = 32 ohms, THD + N = 1%)
Output voltage swing: 10 VPP
Minimum distortion: 0.001% (RL = 32 ohms, Pout = 50 mw)
Typical distortion: (@1 KHZ) 0.03%
Frequency response flatness: 20-20 KHZ+- 1.2 dB
Input sensitivity:1.0 Vrms
Noise floor< 10 mu V
Gain (@ 1 KHZ) 6.5 dB