Xuelin H7 Dual ES9038Q2M Portable DAC

Xuelin H7 DAC uses two ES9038Q2M chips, which are the mobile version of the flagship DAC chip ES9038s, but their architectures are the same, and its indicators are better than AK4490, AK4493, and other chips. ESS9038Q2M provides 129dB S/N and 120dBTHD +N, better in dynamic range and ultra-low distortion. The USB interface is the SA9227 asynchronous clock, which is the best solution for USB decoding at present. It guarantees the accuracy of the data from the digital source, and its parameters are better than the single clock solution. On the analog side, the opa2134 + ad8397 pair of classic HiFi op-amps used by Xuelin H7. H7 built-in 2900mAh lithium battery does not rely on mobile phone power and does not need to worry about power consumption.

Different from ordinary aluminum profiles, H7 is made of full CNC aluminum alloy shells and double-sided 2.5D glass, without considering shell cost. And its size is 80x80x17mm, even if you get it in your hand, it is also very attractive.

Xuelin has invested a lot of software development work on H7 DAC for 1.5 years, to make sure the software can be so detailed and multifunctional. To fulfill the following functions:

USB connection detection,
Real-time electricity detection,
Charge insertion detection,
Low power protection,
Screen saver and wake up,
Real-time bitrate detection and display of files,
DSD instructions,
Filter selection and setup,
Global volume control and display,
Software startup and shutdown,
Earphone impedance detection,
Automatic power matching

Specs:

DAC Chip
ESS9038Q2M x2
Filters
7 Different Filters
LPF Op Amp
OPA2134
Output
262mW@32Ohm (3.5mm SE), 1051mw(2.5mm Balanced )
112mW@150Ohm (3.5mm SE), 448mw(2.5mm Balanced )
154mW@300Ohm (3.5mm SE), 598mw(2.5mm Balanced )
Distortion
0.0055%(15KLPF 1KHZ, -30dB)
SNR
112 dB (1KHZ, 2V-VPP, RL = 1k)
Frequency response
20-20kHz
Battery
2900mAh 3.7V
Charging
5V 2A USB Charger
Size
80*80 * 15mm
Weight
135g
Price: 175$