Audiophilepure

https://www.hifinews.com/content/klh-ultimate-one-headphones

“One positive about the cable is that – despite a braided sheath – it does not generate high levels of capsule noise when it rubs against clothing or furniture. This may well have something to do with the Ultimate One’s structure being well damped at high frequencies but there is evidence – subjective and objective – of headband resonance at lower frequencies. This is at sufficiently low level that there’s no obvious coloration of pink noise played over one capsule only, but some carry-over of sound towards the inactive capsule can still be heard. Measurement confirms that the headband does resonate at low frequencies, most obviously when it is lifted off the artificial head. The dip in response at 60Hz appears to be associated with one of these resonances, as does the response glitch just above 1kHz.”

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