Pertaining to treble which sounds light, delicate, open, and seemingly unrestricted in upper extension. A quality of reproducing systems having very smooth and very extended HF response.
characterized by lightness and insubstantiality; as impalpable or intangible as air; "figures light and aeriform come unlooked for and melt away"- Thomas Carlyle; "aerial fancies"; "an airy apparition"; "physical rather than ethereal forms"
Spacious. The instruments sound like they are surrounded by a large reflective space full of air. Some leakage between microphones. A pleasant amount of reverb. High-frequency response that extends to 15 or 20 kHz.