Yamaha: what they publish

This page does not review anything Yamaha 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.

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

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