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Available only in Black
The new Questyle M12 is an ultra high performance mobile headphone amp/DAC. It delivers an unmatched level of technical sophistication and sonic performance to ensure you get the best sound quality possible when listening to music and videos from any connected device.
The M12 features Questyle’s proprietary super-low-distortion Current Mode Amplification. The patented SiP amplifier module provides high current output, vanishingly low distortion of 0.0003% THD and astonishing noise levels of -130 dB. The extended frequency response and wide dynamic range will bring out the best from any headphone.
The M12’s smart detection system measures your headphone’s impedance and automatically sets the gain level to match your headphones, ensuring stunning sound quality from any headphone or in-ear monitor.
Questyle collaborated with ESS for two years to maximize performance of the ESS ES9281AC DAC chip. As a result the M12 can process PCM up to 32-bit/384 kHz, DSD 256, and decode MQA. So no matter what your source the M12 plays your music with dazzling sonic clarity.
The M12’s USB-C interface works perfectly with all major operating systems: iOS, Android, Windows, and Mac OS, providing ideal audio and video performance with zero latency. Supports MQA. works with 8-600ohm headphone. Uses Current Mode Amplification. The M12 auto detects the impedance of your headphone and adjusts output to insure it is well driven and is indicated via a led light. Red for high gain and Green for low gain.
A Data indicator is also included PCM Green, DSD Red and MQA Magenta.
Material: CNC machined aluminum
Color: Black / Silver
Size: 51[L] X 16.5[W] X 8.1[D] (mm)
Operating System Required:
Android phone and pad: Android 5.0 and above
PC: Win10 1803 and above
Apple cellphone: iOS (You need to buy an OTG cable for Lightning to Type-C.)
Apple computer: Mac OS
DAC Capability of M12:
PCM: 32kHz – 384kHz (16/24/32Bit)
DSD: DSD64(1Bit 2.8MHz) , DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz)
Output Power:
Built-in smart detection circuit will automatically self-adjust the output power to fit different
impedance of headphones.
RL=16Ω，Po=46.11mW;
RL=32Ω，Po=26.71mW;
RL=300Ω，Po=12.26mW;
When the detected impedance is less than 70Ω, M12 will self-adjust to low gain output.
When it is more than 70Ω, M12 will self-adjust to high gain output.
When it is more than 600Ω, M12 will automatically switch to 2Vrms line out.
Frequency Response: ±0.1dB(20Hz-20kHz)
THD+N: 0.0003%
DAC: ESS flagship USB DAC chip ES9281AC
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Great Product, Great Service 
