General Information The Aune AR5000 MK2 is an open-back dynamic driver headphone featuring an all-metal rebuilt headband and a refined 50mm MLD driver over its predecessor. The distinctive circular earcup design with angled drivers returns, now delivering a warmer and more detailed sound profile.A newly optimized transducer internal airflow path and magnetic circuit structure improve diaphragm linearity and extend effective excursion. Compared to the previous generation, the AR5000MK2 achieves deeper bass extension and greater body, while maintaining an optimal balance of speed and layering-well controlled and articulate. Description Key Differences Between AR5000 MK2 and Original AR5000 Improved Headband Construction: The primary change is a shift to an all-metal headband, addressing well-documented reports of headband breakage in the original, first-generation model. Enhanced Sound Performance: The MK2 offers a more refined sound, with deeper and more impactful bass and improved, more open treble. Sub-Bass Increase: Measurements for the MK2 show a greater, more robust sub-bass (20Hz–60Hz) and improved elevation in the 60Hz–100Hz range. Greater Treble Clarity: The new model increases treble prominence with better technicalities and brightness compared to the, at times, smoother or "darker" first-generation model. Open-back with wide, airy soundstage: The open-back design and high-tilt driver layout give the AR5000 a broad, immersive soundstage and natural imaging, ideal for orchestral music, acoustic recordings, or any track where space and separation matter. High-quality 50 mm MLD dynamic driver: The MLD diaphragm offers a balance between stiffness and damping, significantly reducing distortion, and delivering clean bass, rich mids, and smooth, extended highs up to ~41–42 kHz. Easy to drive but scales with gear: With a nominal impedance of just 28 Ω and sensitivity of 108 dB, the AR5000 works well with smartphones, portable DACs or simple amplifiers — yet still benefits from better source gear if you have it. Comfortable for long sessions: The lightweight build, ergonomic “concentric circle” headband system, and breathable slow-rebound earcup padding make it comfortable even during extended listening sessions. Balanced, dynamic sound signature: Listeners often describe the AR5000’s tonality as neutral-to-warm, with deep bass, natural mids, and a smooth, non-fatiguing treble — making it versatile across genres (classical, jazz, rock, electronic). Design: Over-ear, open-back Driver: 50mm dynamic driver with MLD diaphragm Frequency Response: 5 Hz – 43,500 Hz Nominal Impedance: \(28\ \Omega\) (Ohms) Sensitivity: 112 dB SPL/Vrms (or 108 dB/1Vrms depending on the source) Total Harmonic Distortion (THD): \(< 0.03\%\) (at 1 kHz) Weight: ~365 g Cable: 1.5 m Oxygen-free copper (OFC) with interchangeable, modular plugs (supports 3.5mm single-ended, 6.35mm single-ended, and 4.4mm balanced)
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