The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.
How we test sound quality
We rate sound quality using a professional panel of five expert listeners with a range of ages and musical tastes. They listen to nine recordings per turntable which cover a wide range of music and radio genres, giving a rating per recording and an overall verdict (not an average).
How we test maximum volume
We test how loud speakers will go before the sound distorts, so you know how loud it can actually go and still sound at its best, rather than the claimed maximum by the manufacturer that can stretch the speaker beyond its limits. Choose a speaker with a louder maximum volume to fill larger spaces.
How we test ease of use
The overall ease of use as rated by our lab professionals. Includes how easy it is to set up, the quality of the instruction manual and the labelling of sockets. Everyday use includes how easy it is to connect devices, wirelessly stream music and control playback features. Multi-room use includes how easy it is to set up and connect to a wireless multi-room speaker system. The portability rating only applies to models with a battery.
How we test battery life
We play music continuously at a reasonable volume until the battery runs out, typically over Bluetooth. A five star rating is 13:44 (hours:minutes) or more, and similarly 10:48 for four stars, 7:52 minutes for three stars and 4:56 minutes for two stars. Anything less gets the minimum one star rating.
