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Patented Desktop Mode with 950mW High Power Output: When Desktop Mode is activated the M21 operates entirely on external power with the built-in battery neither charging nor dischargingeffectively extending battery lifespan.
Quad CS43198 Matrix DACs Fully Balanced 2-Stage Amplification: Featuring a 4-channel 8-path fully differential output design it unleashes its full potential with exceptional dynamic range and high noise immunity. The headphone amp adopts a 2-stage circuit designthe first stage handles voltage amplification while the second stage boosts currentensuring pristine sound quality and rich detail.
Versatile Ports High-Performance Output: Supports dual 3.5mm + 4.4mm headphone/LO outputs equipped with independent line amplification circuits. Also supports SPDIF and USB Audio output with SPDIF performance rivaling professional digital transportsreducing jitter by 70%.
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