PMC BB5 SE, User Manual

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When loudspeakers are new they will take time to reach their full potential.
It is often debated whether any solid-state equipment, such as CD players
or transistor-based power amplifiers change with use, but the characteristics
of mechanical devices such as loudspeakers do alter and improve their
performance significantly after a short ‘running in’ period.
The science is simple; as the soft material surrounding the dome or woofer
cone is flexed it will eventually reach a point where it has optimum compliancy
allowing the drive unit to move more freely. This translates to greater accuracy
and speed of attack in the bass region and the mid and high frequency
produces a far more vivid audio picture. This short ‘running in’ period takes
approximately 50 hours of normal use.
50+ hours to run-in
Running in or breaking in
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