Band: opinion spread · Dot: weighted average
The most-argued aspect, and it is a disagreement about consequence rather than about facts. Every rig finds the same thing: the ear-gain peak sits near 3.5 kHz instead of the usual 3 kHz. The larger camp hears that as a real timbral cost — vocals turn breathy, frail and oddly distant, and instruments lose presence. A smaller, measurement-led camp records the same peak and calls it easy to ignore or easy to EQ. Both are describing the identical curve, and both agree it is a small deviation; they disagree about whether small deviations in this band matter.
Measured
Fc-Construct, reading the B&K 5128 raw trace, identifies the cause precisely: the roller-coaster look of the upper mids is not random dips but the ear-gain peak moving to 3.5 kHz. Resolve, on a 5128 and a GRAS, files the same feature as a slight timbre shift producing a hint of glare. Kuulokenurkka, on a clone IEC-60318-4 coupler against Harman 2018, reports the peak makes the sound rougher and adds that EQing 3.5 kHz slightly downwards makes it natural again. RTINGS, by contrast, scores the mids as closely following its own target, and SoundGuys' MDAQS timbre score is 4.8 out of 5.
vs. listeners — The interesting question is why the Azurys wears this peak worse than its open twin, which measures with the same shift — and two analysts reach the same answer independently. Kuulokenurkka writes that on the Hadenys 'the same characteristic is probably better hidden because it reproduces the 1–1.5 kHz frequency range more energetically than the Azurys', and Fc-Construct credits the Hadenys with 'a touch of 1.25 kHz elevation that helps to balance out the higher ear gain'. Both then say they prefer the open model for that reason. So the split is not about whether the peak exists; it is about how much of it your ears, your pads and your recordings let through.
“a vocalist might sound somewhat frail and distant with Azurys”
Kuulokenurkka (Headphone Corner)
“Some may want to bring down the peak near 3.5kHz a little bit, but that kind of overemphasis is really easy to ignore.”
SoundGuys (Christian Thomas)
