Tag Archives: Power Ratings

Speaker Power Ratings

Manufacture Test Rating

  • This is the thermal limit using pink noise to define the continuous power rating.
  • Standards include AES2-1984 (r2003), EIA-426-B (2001), IEC 60268-5 and AES2-2012
  • Most vendor will label this RMS and is totally incorrect.
  • Will see defined as Pc, Continuous, RMS, IEC 60268-5, EIA-426-B. IEC Continuous or AES Continuous rating.

Thermal Limits

  • This is the thermal limit using random frequencies of music reproduction
  • This is defined as 2 x Pc, Continuous or RMS Power
  • Will see this defined as Pe, PMax, Peak, Program, Music or System Power
  • Caution! Some vendors will label this as peak power.
  • If Peak defined as 2 x RMS then this is Max Thermal Limits not Peak
  • Thermal capacity is related to coil temperature, adhesives and insulation melting point.

Mechanical Limits

  • Pm or PLim or Peak Power is the mechanical limitation
  • An excursions greater than the Xmax parameter can damage the component.
  • This is defined by 2 x Pe, Pmax, Program, Music or System Power
  • Can be defined by 4 x Pc, Continuous or RMS Power