Questyle

Questyle M12

$169

***SILVER ETA SEPTEMBER 2021

Questyle Audio adhere faithfully to current-mode amplification at all form factors, their dedication to this technology extending down to their thumbdrive-sized DAC dongle, the M12. 

It's easy to hear why, if audible results count to you. Operating in current-mode, audio signal gets passed in current instead of the more standard voltage. This eliminates the lag time of the signal that might otherwise occur, as it builds up at the capacitances in the circuit – current signal passes through unhindered as compared to voltage, with speed and ease.

By doing away with the issue of transmission delay in M12, Questyle virtually eliminates any of the harshness caused by the intermodulation distortion associated with high capacitance, solid-state circuits. Typical of their high-end offerings, M12 presents detail smoothly and organically without exaggerated warmth or bloat.

Another effect of being unhindered by capacitance in the signal path means that huge signal bandwidth is possible, leading to phase response being accurately preserved in the human hearing range. Indeed, to hear current-mode is to hear a naturalness to music not encountered before in a conventional circuit, and Questyle build M12 as an affordable entry to such a topology.

Happily use with any low-impedance device (current signals excel the closer a load is to ground) such as IEMs, and especially Focal's new line of headphones – Radiance, Celestee and Clear MG – as well as Rosson Audio Design.

// GOOD TO KNOW 

  • Current Mode Amplification
  • Smart impedance matching from 8 to 600 Ohms.
  • Ultra low distortion 0.0003%
  • ES9281AC chip (Decodes up to PCM 384kHz/32bit and DSD256)
  • Supports MQA decoding
  • Supports TRRS in-line mic input
  • Gain indicator 
  • Data indicator
  • Compatible with Android 5.0 & above and iPhones (Lightning cable not provided)
  • Dimensions: 5.1 X 1.65 X 0.81 cm
  • 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=32
Ω – Po=26.71mW;
RL=300
Ω – 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 600
Ω, M12 will automatically switch to 2Vrms line out.

// WHAT'S IN THE BOX: 

  • 1 x M12 Mobile Amplifier with DAC
  • 1 x M12 description card
  • 1 x Type-C to USB-A Cable 
  • 1 x Type-C to USB-C Cable

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