Aune AC55

The Aune AC55 is the reference model in Aune's clip-on line, built to prove that an open-ear headphone can deliver genuine audiophile depth and dynamics. It keeps the weightless, headband-free comfort of the clip-on format while pushing driver engineering considerably further.

Reviewers have singled out the AC55 for bass depth and staging that rival much larger open headphones, from a design that weighs just 35g per side.

Type and Technology

A 40mm dynamic open driver uses a rigidity-enhanced W-shaped bio-fiber composite diaphragm with a thermally stabilized layer, giving around 70 percent more effective vibration area than typical clip-on drivers. A custom ultra-elastic long-excursion surround enables sub-bass extension that is unusual for open clip-ons, driven by a symmetric motor system optimized for long excursion. Impedance is 30 ohms with 112dB sensitivity.

Sound Character

Reference-oriented tuning with real sub-bass reach, natural timbre and a wide, open stage. The unsealed design keeps the presentation effortless and fatigue-free while dynamics stay punchy well beyond what the form factor suggests.

Build and Comfort

Semi-memory alloy ear hooks distribute pressure evenly for stable, all-day wear at 35g per earpiece. The 1.25m high-purity OFC Litz braided cable is detachable and ships with interchangeable 3.5mm single-ended and 4.4mm balanced plugs.

Best For

Audiophiles who want open-ear comfort without giving up reference dynamics, and anyone stepping up from the Aune AC45. Pairs beautifully with portable players like the Aune M1P BT. See our headphones collection and the full Aune Audio range, including the open-back Aune AR5000 MK2.

What's in the Box

• Aune AC55 clip-on headphones
• 1.25m OFC cable
• 3.5mm plug
• 4.4mm balanced plug
• Quick start guide
• Portable pouch

Specifications