It features the same 5-inch Full-HD screen as our older M8, but in a sleeker “Wave” design body, measuring 129 x 78 x 20 mm at 312g. On the inside, it adopts advancements from the M9, including the single-piece aluminium inner body and the single-board integrated acoustic design.

Audio circuit of the M7 is based around ESS Sabre ES9038PRO DAC. The flagship model of the ESS line, power hungry 8-channel beast and DAC that we started to really like last year, when we implemented it into our top-of-the-line CD Player CD3.2 (21). All the experience of adapting it into a classic Hi-Fi machine helped us in optimizing its performance for the M7.

The ES9038 PRO is run in its current-mode operation, combined with a matching ESS ES9311 voltage regulator, a power circuit adapted from the M9 and our in-house developed I/V conversion stage. When paired with our OP + BUF amplifier architecture, which was further optimized for the M7, we are actually getting our best measuring portable player so far..

Specification:

Dimensions : 129 x 78 x 20 mm

Weight : 312g

Display :5-Inch 1920 * 1080

Operating System :Open Android 10

CPU :Qualcomm Snapdragon 665

Memory :Ram 6GB, ROM 128GB + single Micro SD card slot

Hi-Res support : 32/768 & DSD512 & MQA 16X

Bluetooth : Bluetooth 5.0, two-way, LDAC, LHDC, aptX HD, aptX, SBC Support

Wi-Fi : 2.4G/5G, supporting DLNA, Airplay

DAC : ESS ES9038PRO

Amplifier : ADA4896-2 + MUSES8920 + OPA2211 + BUF634

Output Power : Single-ended 400 mW@32Ohm // 900mW@32Ohm Balanced

Output : 3.5mm single ended and 4.4mm balanced

Output impedance : Less than 1 Ohm

Battery : 7000 mAh, supporting 18W quick charging

Battery life : Up to 10 hours in single ended and 8.5 hours in balanced

Single-Ended Output：

1. Output Power

Low Gain： 0.73 V@32 Ohm (17 mW)

Medium Gain： 1.88 V@32 Ohm (110 mW)

High gain： 3.61 V@32 Ohm (406 mW)

2. Frequency Response：20 Hz - 40 KHz (0.2 dB)

3. THD+N：0.0007%

4. Channel separation：75 dB @ 32 Ohm

5. Dynamic Range：126 dB

6. Signal-To-Noise：126 dB

7. Noise：>116 dB(<1.6 uV)（Low Gain）

8. Output Impedance：<1 Ohm

Balanced Output：

1. Output Power

Low Gain： 1.46 V@32 Ohm (66 mW)

Medium Gain： 3.35 V@32 Ohm (350 mW)

High gain： 5.43 V@32 Ohm (920 mW)

2. Frequency Response：20 Hz - 40 KHz (0.2 dB)

3. THD+N：0.0007%

4. Channel separation：115 dB @ 32 Ohm

5. Dynamic Range：128 dB

6. Signal-To-Noise：128 dB

7. Noise：>113 dB(<2.2 uV)（Low Gain）

8. Output Impedance：<1 Ohm