Questyle M12i Headphone Amplifier with DAC Product Description:
Hardcore Technological Aesthetics
The Kunlun glass window, featuring a design that merges seamlessly with the precision craftsmanship of the PCD, embodies the essential aspects of signal processing and the beauty of technological design.
Apple MFi Certified For Guaranteed Performance and Compatibility
The "i" in M12i signifies its Apple MFi certification, guaranteeing flawless compatibility and integration with iPhone/iPad within the Apple ecosystem. This certification meets Apple's strict standards for external devices concerning power usage and compatibility, safeguarding against potential harm to phones and systems due to incompatible device connections.
M12i - Mobile Headphone Amplifier with DAC
During the 2024 CES exhibition, Questyle introduced its second-generation premium mobile headphone amplifier, the DAC m12i, building on the acclaim of the original M12 model. The M12i continues to offer exceptional audio signal processing capabilities, transcending the technological, cost, and size constraints typically associated with phone-integrated audio circuits. Featuring Questyle's distinctive Current Mode Amplification technology alongside the top-tier ESS flagship USB DAC chip, the M12i enables users to experience high-fidelity, lossless audio from streaming services using conventional HiFi headphones, delivering unparalleled sound quality.
SiP Current Mode Patent Independent Headphone Amplifier
Questyle's groundbreaking "Current Mode" amplifier technology, a patented innovation, is what distinctly distinguishes Questyle amplifiers from the competition. Acting as the powerhouse behind the headphone system, the amplifier plays a vital role in shaping sound quality. The M12i leverages the proprietary CMA (Current Mode Amplification) module, liberating it from the power constraints typical of operational amplifier (op-amp) chips. This results in an impressively low distortion rate of 0.0003% and a significantly high current output capacity. Coupled with the patented Current Mode amplification and TOREX's efficient power management system, the M12i boasts high performance with minimal power consumption. This combination effectively minimizes the risk of overheating and interruptions, even during extended usage periods.
Full Compatibility for True Lossless Enjoyment
In its development phase, Questyle Labs undertook rigorous testing and precise optimization to ensure the M12i's seamless compatibility with widely-used smartphones and tablets. It successfully attained high-level compatibility across iOS, HarmonyOS, and Android operating systems starting from version 5.1 onwards. Moreover, it extends its support to PC applications, compatible with Windows 10 and subsequent versions, as well as macOS. This broad compatibility empowers HiFi headphone enthusiasts to relish in high-quality, lossless audio content from their preferred streaming services, regardless of their location or device.
Smart Impedance Matching Unlocking the Full Potential of Headphones
The M12i comes equipped with an intelligent impedance detection system that mirrors the functionality of an automatic transmission in a vehicle, by automatically recognizing the impedance of the headphones once plugged in and adjusting its settings accordingly. As soon as headphones are connected, the M12i springs into action, entering its working mode and automatically selecting the appropriate gain level for the attached headphones. The gain status is easily discernible: a single light indicates low gain, whereas two red lights signal high gain. Moreover, when the M12i is utilized as a mobile DAC connected to high-fidelity systems, active speakers, and similar setups, it automatically transitions to a high-level output mode, ensuring it can adequately power sophisticated HiFi audio systems.
Specifications:
Compatible Operating Systems
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- Android phones and tablets: Android 5.0 and above
- PC: Win10 1803 and above
- Apple cellphone: iOS (You need to buy an OTG cable for Lightning to USB-C)
- Apple computer: Mac OS
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D/A converting Capability
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- PCM: PCM: 44.1kHz – 384kHz (16/24/32Bit)
- DSD: DSD64(1Bit 2.8MHz) , DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz), DSD512(1Bit 22.4MHz)
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Output Power
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- RL=16Ω, Po=19mW
- RL=32Ω, Po=21mW
- RL=300Ω, Po=11.97mW
- Vout(Max)=1.895Vrms
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Frequency Response
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- Frequency Response: ±0.1dB (20Hz-20kHz)
- THD+N: 0.0003%
- DAC: ESS flagship USB DAC chip ES9281AC
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What’s in the Box
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- M12i Mobile Headphone Amplifier with DAC
- USB Type-C to Type-C Cable
- USB Type-C to Type-A Cable
- Warranty Card
- User Manual
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