Austrian Audio: what they publish

In this database8 headphones
Figures from their own material7 of 8
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This page does not review anything Austrian Audio makes. It counts one thing: how much of what this database says about their products came out of their own documents, and how much had to be worked out or left blank.

Where each sensitivity figure came from

ModelImpedanceSensitivitySource of the figure
Hi-X1525 Ω97.0 dB/mWConverted from per volt
Hi-X2025 Ω97.0 dB/mWConverted from per volt
Hi-X25BT25 Ω113.0 dBUnit not stated
Hi-X5525 Ω102.0 dB/mWConverted from per volt
Hi-X6025 Ω94.0 dB/mWConverted from per volt
Hi-X6525 Ω94.0 dB/mWConverted from per volt
The Arranger25 Ω94.0 dB/mWConverted from per volt
The Composer22 Ω95.4 dB/mWConverted from per volt

Impedance is almost always printed. Sensitivity is the one that goes wrong, because a decibel figure means two very different things depending on whether it is per milliwatt or per volt — about five decibels apart at 300 Ω and eighteen at 16 Ω. The conversion is here.

  • Converted from per volt — 7: the maker prints a figure per volt, converted here with dB/mW = dB/V − 10·log10(1000/Z)
  • Unit not stated — 1: the maker prints a decibel figure with no reference unit, so it is shown as printed and flagged rather than quietly converted

What the paperwork adds up to

Most of what this site says about Austrian Audio came from them, with the rest derived and labelled as derived.

The rule used here is the same for every maker and is described on the manufacturer index. Every figure behind it can be opened on the product page it came from, with the document it came from linked.