Speaker Asylum: Generalizing again, the midrange runs from around 300 Hz to 4,800 Hz or four octaves. 1 KHz then by cfb General speaker questions for audio and home theater.

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Posted by cfb (A ) on July 22, 2012 at 10:45:14

In Reply to: Why is sensitivity measured at 1000Hz? posted by Craiger56 on July 22, 2012 at 09:22:30:

just becomes a convenient mid point. This goes back to when midrange drivers were known as Squawkers they had to cover the range of the human voice for the early telecom systems of the day. At that time the specification for POTS (Plain Old Telephone Service) was for a bandwidth of 300 Hz to 3,400 Hz. By the way, POTS original meaning was Post Office Telephone Service. It may have been Phillips that used the term in their ad copy. Although, the upper midrange covers the range of 2,400 Hz to 4,800 Hz most commercial loudspeakers have a crossover point from the midrange to the tweeter driver somewhere between 2,000 Hz and 3,500 Hz, mainly to avoid having the crossover in the same frequency range as the breakup resonances of the typical cone midrange driver.

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