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This question has probably been raised and answered here before but I
have no been able to find a discussion directly addressing this
question.

My son is hoping to get a speaker system for his car and noticed that
some speakers can handle frequencies up to 30 KHz. What would be the
point of handling frequencies above the limit of human hearing (up to
20 KHz)?

Many thanks in advance,
Peter.

[[email protected]]

On Dec 24, 1:37 pm, wrote:
This question has probably been raised and answered here before but I
have no been able to find a discussion directly addressing this
question.

My son is hoping to get a speaker system for his car and noticed that
some speakers can handle frequencies up to 30 KHz. What would be the
point of handling frequencies above the limit of human hearing (up to
20 KHz)?

Primarily, to sell more speakers to people who don't ask
these sorts f questions. In fact, it may well be unlikely
that the speakers advertised as extending to 30 kHz have
have any more output than those extending to 20 kHz.
Especially in the case of car speakers, which are often
more advertising hype than technical substance anyway.
And with pretty much ALL plausible source material
(cassette, FM radio, CD, MP3, satellite radio, HD radio),
there's no energy up there anyway.

It's pure market9ing, in essence.

[Kevin McMurtrie]

In article
,
wrote:

This question has probably been raised and answered here before but I
have no been able to find a discussion directly addressing this
question.

My son is hoping to get a speaker system for his car and noticed that
some speakers can handle frequencies up to 30 KHz. What would be the
point of handling frequencies above the limit of human hearing (up to
20 KHz)?

Many thanks in advance,
Peter.

The upper limit of human hearing varies from 10Hz to 25Hz. FM stereo
radio is limited to 15KHz, CDs to about 19KHz, and tape varies wildly.
Some non-standard format CDs can go beyond 20KHz with the right player.

You should buy speakers that can hit at least 20KHz, but higher doesn't
matter. They say they hit 30KHz because it's trivial to do so. Car
stereo speakers usually have cost cutting in more difficult areas like
quality of the frequency response and distortion. Listen for harshness,
missing sounds, muddy mid-tones, and bass kicks that distort to a higher
pitch at high volume.