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Old 11th November 2012, 01:10 AM   #71
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Why 40? It can't reproduce 5-string bass guitar, organ, piano.
And why 20 KHz? 8, 12, or 16 Hz may be sufficient. It may be enough to cover all specified range. For different classes of equipment different ranges can be specified. For bass guitar, for solo guitar, for pocket radio, and so on, ranges will be different. In "audio engineering profession" before engineering anything we have specifications. Without specifications it is not an "engineering profession", it is more like a hobby.
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Old 11th November 2012, 01:14 AM   #72
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Well, I think it should be the range of human hearing. So I guess it could be around 30Hz to 15kHz for most of us.
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Old 11th November 2012, 01:36 AM   #73
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Quote:
Originally Posted by Soundtrackmixer View Post
that would be a speaker that could reproduce 40-20khz with high output and low distortion.
Most domestic situations don't require really high output. And what kind of distortion? A single FR driver inherently lacks certain distortions introduced by any speaker with an XO.

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Old 11th November 2012, 01:41 AM   #74
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The thread is titled loudspeaker. Not driver.
That's what I thought......
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Old 11th November 2012, 01:47 AM   #75
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Most domestic situations don't require really high output. And what kind of distortion? A single FR driver inherently lacks certain distortions introduced by any speaker with an XO.

dave
I guess it could be also said that no single driver can cover a very wide frequency range like a three or four way can.

A single driver may lack certain distortions, but a single driver trying to reproduce deep bass, and high frequencies at the same time is going to have a bit of trouble.
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Old 11th November 2012, 01:53 AM   #76
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Originally Posted by Wavebourn View Post
Why 40? It can't reproduce 5-string bass guitar, organ, piano.
Their white paper recommends that you use a subwoofer for full and limited range speakers to extend the response to 20hz.

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And why 20 KHz? 8, 12, or 16 Hz may be sufficient. It may be enough to cover all specified range.
Maybe because that is the upper range of human hearing, and sufficient is not enough for some folks.

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For different classes of equipment different ranges can be specified. For bass guitar, for solo guitar, for pocket radio, and so on, ranges will be different. In "audio engineering profession" before engineering anything we have specifications. Without specifications it is not an "engineering profession", it is more like a hobby.
Hence why the audio professionals that created the different speaker distinctions did what they did. They set playback specifications for different size speakers in the studio environment.
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Old 11th November 2012, 01:58 AM   #77
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Better add in "Sounds balanced" as I understand it we hear things differently when the sound has too much bass or too much treble, so if we are using a single driver then what I have read seems to say that if we want to include deep bass we need at the same time extended treble. So please give me some indication of where that desired bandwidth is. I personally find the "Telephone" bandwidth (300 - 3000Hz)acceptable for a mid range but definitely lacking in a so-called full range speaker.
I can how-ever quite happily listen to most reasonable 8 and 10 inch woofers run without crossovers and most of those stop around 7 or 8k. So is it 60 to 10,000hz or something a little narrower? 100 to 7500Hz??
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Old 11th November 2012, 01:58 AM   #78
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Originally Posted by Melo theory View Post
The thread is titled loudspeaker. Not driver.
"Loudspeaker" is the general term for the electrical signal > sound wave device. Hence the sub-forums in the category.
But reading post #1 should make clear what was intended.
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Old 11th November 2012, 02:16 AM   #79
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Quote:
Originally Posted by Soundtrackmixer View Post
I guess it could be also said that no single driver can cover a very wide frequency range like a three or four way can.

A single driver may lack certain distortions, but a single driver trying to reproduce deep bass, and high frequencies at the same time is going to have a bit of trouble.
40-20kHz (or 30-15k) is certainly doable with the best of today's FR drivers. What is usually given up is ultimate levels & dynamics. If you don't listen that loud then no big deal.

If you look at most multiways, few go down to 30 Hz, & a typical 1" dome is starting to fade above 15k. And each XO you introduce brings a whole slew of distortions.

dave
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Old 11th November 2012, 02:51 AM   #80
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But reading post #1 should make clear what was intended.
Yes indeed. It's not that mysterious. Some folks are just too darn literal.
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