Questyle M15 Mobile Lossless DAC Hifi Headphone Amplifier 3.5MM & 4.4MM Balanced Output for iPhone

Questyle M15 Mobile Lossless DAC Hifi Headphone Amplifier 3.5MM & 4.4MM Balanced Output for iPhone

Features:
- M15 mobile lossless DAC with headphone amplifier.
- Two independent CMA SiP modules and four total amplification circuits, enabling greater dynamics, richer details. The M15 contains two of Questyle's patented CMA (Current Mode Amplification) SiP modules, for a total of four CMA amp engines. This quadruple drive amplification circuitry gives an outstandingly strong output that can drive almost any headphone. Questyle's Current Mode Amplifiers are characterized by their small footprint, low voltage operation, and minimal power consumption. Current Mode amplification has a naturally low impedance, affording the M15 a bandwidth up to 1MHz, distortion as low as 0.0003%, and the ability to reproduce every detail hidden deep within any track.
- World-class digital to analog conversion ES9281AC DAC offers top-of-the-line decoding. The M15 features the highly acclaimed ES9281AC flagship DAC, which can handle up to PCM384kHz/32bit and DSD256. It's almost inconceivable that something as small as the M15 can process and reproduce such demanding audio formats.
- High-efficiency power management for TOREX. Low power consumption, no overheating. Longer endurance time and longer playback.
- 3.5mm TRS, 4.4mm TRRS outputs and manual gain adjustment. Compatible with even more headphones. With its four CMA amp circuits, the M15 supports both unbalanced (3.5mm TRS) and balanced (4.4mm TRRS) outputs. It also has manual gain adjustment via the slider on the side, which makes it easy to choose high/low gain depending on the connected headphone, speaker, or HiFi system.
- Impossibly low noise floor. Complete sonic immersion. Purest sound, anytime, anywhere. Only a black background can reflect rich color. With its incredibly low noise floor, the M15 allows all the details of your music faithfully ring true. In testing, the M15 was able to achieve a noise floor of -130dB.
- Treat your senses to true lossless sound. When playing audio, the data status indicator will illuminate one of the following colors: Green: indicates the audio sample rate is 48kHz or less. Red: indicates hi-res lossless playback (High resolution lossless refers to PCM sampling rate greater than 48k-PCM384k, and DSD data status, including DSD64~DSD256). Magenta: indicates the M15 is performing the final unfold of an stream for MQA Core.
- Unparalleled ease of use. Plug-and-play, no drivers needed. Your HiFi anytime, anywhere.
- The M15 connects you to the streaming era. The easiest way to enjoy any hi-res lossless library. The M15 supports almost all music streaming platforms worldwide, including for Apple Music, Tidal, QQ Music, among others. It fully supports and decodes lossless formats such as for ALAC, FLAC and MQA.
- Metal housing and transparent cover. Minimalist on the outside, stunning on the inside.

Specifications:
Operating System Required:
- For Android phone and pad: for Android 5.0 and above
- PC: Win10 1803 and above
- For Apple cellphone: for iOS (an OTG cable for iPhone to Type-C is needed)
- For Apple computer: for mac OS system

DAC Capability:
- PCM: PCM: 32kHz-384kHz (16/24/32Bit)
- DSD: DSD64 (1Bit 2.8MHz), DSD128 (1Bit 5.6MHz) and DSD256 (1Bit 11.2MHz)

Output Interface:
- 3.5mm single-ended headphone jack x1
- 4.4mm balanced headphone jack x1

Output Power:
- 3.5mm: RL=300Ω, Po=11.97mW, Vout (Max)=1.895Vrms, THD+N=0.00045%
- 4.4mm: RL=300Ω, Po=22.60mW, Vout (Max)=2.624Vrms, THD+N=0.00057%

Frequency Response & THD:
- Frequency Response: ±0.1dB (20Hz-20kHz)
- THD + N: 0.0003%
- DAC: flagship USB DAC chip ES9281AC

Appearance:
- Material: CNC machined aluminum
- Color: Black
- Size: 61.8 x 27.2 x 12mm/2.4 x 1.1 x 0.5"

Package Included:
- 1 x Set of DAC Headphone Amp

Note:
- User manual is included in the package.