How we test
The protocols, the rigs, the minimum test periods, and the arrangements that make our obvious failure modes harder. Read this before you trust a number on this site.
Methodology
Everything we have published under this tag, newest first.
4 articles
Noise cancellation, explained: what the number on the box is not telling you
Every manufacturer quotes a single decibel figure. It is always their best one, at the frequency they are best at, and it predicts almost nothing about a train.
Why we stopped recommending the cheapest thing that works
For three years we had a budget pick in every guide. Then we went back and measured what happened to them, and changed the policy.
Reading a spec sheet: the six numbers that predict how a product feels
Most specifications describe a laboratory. A few describe your Tuesday. Here is how to tell them apart, in any category.
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