Audio-Technica: what they publish

In this database27 headphones

Figures from their own material26 of 27

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This page does not review anything Audio-Technica 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.

Headphones

Where each sensitivity figure came from

Model	Impedance	Sensitivity	Source of the figure
ATH-A2000Z	44 Ω	101.0 dB/mW	Published per mW
ATH-A900Z	44 Ω	100.0 dB/mW	Published per mW
ATH-A990Z	44 Ω	100.0 dB/mW	Published per mW
ATH-AD1000X	40 Ω	102.0 dB/mW	Published per mW
ATH-AD700X	38 Ω	100.0 dB/mW	Published per mW
ATH-AD900X	38 Ω	100.0 dB/mW	Published per mW
ATH-ADX3000	50 Ω	98.0 dB/mW	Published per mW
ATH-ADX5000	420 Ω	100.0 dB/mW	Published per mW
ATH-AWKG	48 Ω	102.0 dB/mW	Published per mW
ATH-CKS1100	12 Ω	110.0 dB/mW	Published per mW
ATH-E40	12 Ω	107.0 dB/mW	Published per mW
ATH-E50	44 Ω	107.0 dB/mW	Published per mW
ATH-E70	39 Ω	109.0 dB/mW	Published per mW
ATH-GDL3	45 Ω	98.0 dB/mW	Published per mW
ATH-GL3	45 Ω	98.0 dB/mW	Published per mW
ATH-M20x	47 Ω	96.0 dB	Unit not stated
ATH-M30X	47 Ω	96.0 dB/mW	Published per mW
ATH-M40X	35 Ω	98.0 dB/mW	Published per mW
ATH-M50X	38 Ω	99.0 dB/mW	Published per mW
ATH-M50xBT2 (wired)	38 Ω	99.0 dB/mW	Published per mW
ATH-M60x	38 Ω	102.0 dB/mW	Published per mW
ATH-M70X	35 Ω	97.0 dB/mW	Published per mW
ATH-R50x	50 Ω	93.3 dB/mW	Published per mW
ATH-R70X	470 Ω	98.0 dB/mW	Published per mW
ATH-R70xa	470 Ω	97.0 dB/mW	Published per mW
ATH-W1000Z	43 Ω	101.0 dB/mW	Published per mW
ATH-WP900	38 Ω	100.0 dB/mW	Published per mW

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.

Published per mW — 26: the maker prints a decibel figure per milliwatt, which is what the database stores
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

In short

What the paperwork adds up to

Almost everything this site says about Audio-Technica came from them. That is not the normal case and it is worth saying out loud.

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.

All 156 manufacturers · What the spec sheets actually say · Download the whole database

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