A warm-of-neutral, relaxed open-back that nearly every source finds natural and easy to listen to. It is exceptionally easy to drive (28 Ω, 108 dB/V — a phone or dongle is enough), light and comfortable for long sessions, with a forward, natural midrange and a wide, open stage. A dozen measurement rigs agree on the shape: linear sub-bass that reaches deeper than an HD 600's, a slightly full 200–500 Hz, less 1.5–5 kHz energy than the HD 600, and on most rigs a deep notch around 10 kHz between narrower peaks. That treble is where opinion splits three ways: smooth and fatigue-free, too dark (short on air and sparkle), or peaky and occasionally fatiguing, depending on the listener, the recording and how the angled drivers sit on the head. Bass splits too: full and punchy to some, soft to others, though everyone agrees it takes EQ cleanly. Detail and dynamics rate adequate rather than class-leading. The biggest change since launch is durability: the plastic piece joining yoke and headband has cracked or snapped for many owners after roughly 4–24 months of normal use. Aune conceded an early-batch structural issue and replaced it with metal in the MK2, and value opinions now hinge on that risk.
About this product
The original AR5000 — Aune's first headphone (late 2023): open-back, over-ear, a 50 mm dynamic driver angled steeply toward the ear, 28 Ω and 108 dB at 1 Vrms, about 350 g, $299. In spring 2026 Aune replaced it with the AR5000 MK2 (~$340), which swaps the plastic piece joining yoke and headband for metal, adds a modular cable and is retuned with more bass and brighter treble — reviewers who heard both call it a different-sounding headphone. This overreview covers the original, now discontinued at many dealers.
The AR5000 was Aune's first headphone — a surprise from a Chinese company known for DACs and amplifiers — and it arrived in late 2023 as a $299 open-back with a 50 mm dynamic driver tilted steeply toward the ear, a wide suspension strap and a finish that made many people assume it was solid metal.
Reviewers greeted it as a warmer, more spacious, far easier-to-drive alternative to the Sennheiser HD 600 and HiFiMan Sundara. Two years of ownership added a harder chapter: a run of cracked yoke joints that Aune acknowledged and then addressed in the 2026 AR5000 MK2. Its sound still divides listeners, mostly over the treble.
