Shanling M6 PRO Digital Audio PlayerShanling
Shanling's M6 PRO is a DAP with exceptional audio performance. It uses a version of Android OS specifically customized to maximize audio performance and offer great freedom to its user.
Featuring a tremendous electronic design, it uses two excellent DAC AK4497, and has its own FPGA correction circuit with crystal oscillators. M6 PRO uses a Octa-core Qualcomm processor with 4GB of RAM, 32GB of internal memory and a micro SD card reader supporting cards up to 2TB.
This prestigious Pro version includes all the features of Standard M6 with many significant improvements to achieve an impressive signal / noise of 123dB (against 119 for the standard version).
The DAC combo uses AK4497 chips instead of AK4495SEQ chips.
The low pass filter circuit uses OPA1662 replacing the OPA1612.
The amplifier circuit is based on two ADA4610 and fourBUF634 chips instead of triple ADI8397, which offers a considerable output power up to 600mW under a load of 32 ohm. This also enables switching between one or two DACs on single-ended output to lower battery use or to improve performance.
The overall aesthetic is not left behind since the entire back panel is now covered by a superb-looking shock-resistant matt glass.
Advanced Audio System
Shanling's M6 PRO uses two AKM AK4497 DAC chips simultaneously to process separately each channel of the stereo signal. This configuration allows a clear channels separation with a wide soundstage.
Each of these DAC chips is accompanied by a KDS low phase noise crystal oscillator and has a correcting / filtering made by FPGA running an algorithm that has been developped for best performance with the M6 PRO.
Two ADI AD8397 amplifiers drive the balanced output and provide considerable power with extremely low a noise level. A third AD8397 chip is used to make sure all the capacity of the two DACs are used when using its unbalanced output.
As usual, Shanling equipped its M6 PRO with Tantalum-Polymer Panasonic capacitors. Four capacitors ELNA Silmic II are used as well.
Balanced and unbalanced output
The M6 PRO provides a wide range of outputs such as an unbalanced output on Jack 3.5mm connector, a balanced output on Jack 2.5mm connector and a second balanced output Jack 4.4mm connector. This is enough to ensure compatibility with most of the headset technology or models available without any additional adapter.
There is also a very useful USB connector to extract the digital stream to send it on an external DAC if necessary.
All connectors are located on the same side of the case for easy handling.
Android Operating System
The embedded operating system is a version of Android optimized for audio, that is to say the M6 PRO ??benefits from the flexibility of this system without encountering the conversion and sampling issues which are pretty common in Android.
Thus, the M6 PRO ??can install and run with ease all the (many) playback applications, equalization and signal processing available on Android with all the advantages that this represents in terms of scalability.
This also allows the use of all present and future streaming platforms that are Android compatible.
Naturally, Shanling's playback application is already installed by default and your M6 PRO is operational out of the box without the need for special installation. This simple application is designed to allow easy access to all the DAP capabilities and natively integrates a 10-band graphic equalizer.
Shanling's M6 PRO is equipped with Wi-Fi connectivity 2.4G / 5G ideal for high definition audio streaming, very helpful to make updates on the fly or to customize the player with your own playback / processing signal apps.
The device also has Bluetooth connectivity for complete compatibility with all headphones / Bluetooth EMI and with connected speakers.
The Bluetooth connection is bidirectional, this means that the opposite scenario is possible: you can use the M6 PRO ??as Bluetooth HiFi receiver with integrated DAC to easily switch between multiple sources while taking advantage of its excellent audio capabilities.
The LDAC codecs are supported SBC (bidirectional) and HWA LHDC apt-X & apt-X HD (transmission only). An LED located just above the volume button indicates the type of codec currently used with a color code which allows to verify that the transmission is done in the best possible way.
Large HD IPS touchscreen
The device has a superb HD touch screen 4.7 inches 16 Million colors for a striking effect.
The latter is made of tempered glass which has great durability and also benefits from oleophobic antifingerprints coating.
Large 4000mAh battery
With its 4000mAh battery, the M6 PRO ??can offer up to 12 hours of continuous playback on its unbalanced output and 9a hours on its balanced outputs.
The unit also benefits from Qualcomm Quick Charge 3.0 technology to charge the device quickly.
|Operating system||Android 7.1|
|Processor||Octa-core Qualcomm Snapdragon 430|
Jack 4.4mm (balanced)
USB (external DAC)
Bluetooth LDAC / SBC / HWA LHDC / apt-X / apt-X HD
WiFi 2.4 / 5G
|Inputs||USB (for file transfers)
WiFi 2.4 / 5G
Bluetooth LDAC / SBC
|Supported audio formats||DSF / FDF / ISO / DXD / APE / FLAC / WAV / AIFF / AIF / DTS / MP3 / WMA / ACC / OGG / ALAC / MP2 / M4A / AC3 ??/ M3U / M3U8|
|Sample Rate||32bit - 768kHz / DSD 128 (hardware) DSD 256 (Software)|
|Gain||Preset High Gain / Low Gain|
|Unbalanced output||Power: 168 mW @ 32Ω
Channel separation: 75dB @ 32Ω
THD + N: 0.001%
Output impedance: less than 1Ω
|Balanced output||Power: 350 mW @ 32Ω
Channel separation 109dB @ 32Ω
THD + N: 0.001%
Output impedance: less than 2Ω
|Screen||IPS 4.7 inches 16M colors Touch|
|Dimensions||71 x 17.5 x 133.5mm|