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5.5
Testing Loudspeakers
Speakers can be tested using one of the Lindos miniature microphones
plugged into one of the MiniSonic mic inputs. These inputs conform to the
UniSon-mic standard, with 5V power on the tip of the minijack and a
sensitivity of –30dBu (for 0dB on the scale).
The standard way to test a loudspeaker requires a fully anechoic chamber,
with an acoustically transparent floor-grid. The microphone is normally
mounted on an unobtrusive boom and positioned 1 metre in front of the drive
units on axis with the high-frequency driver. While this will produce
repeatable results, we would argue that more relevant measurements are
Fig 5.1 Results Sheet for a Monitor Speaker @2.5m in a Room
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