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Author Topic: "True sub"  (Read 9747 times)

Lyle Williams

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Re: "True sub"
« Reply #10 on: June 26, 2015, 06:10:34 pm »

**MY** sub is a true sub.

**YOUR** sub is junk.

:-)
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Jeff Bankston

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Re: "True sub"
« Reply #11 on: June 26, 2015, 09:14:03 pm »

**MY** sub is a true sub.

**YOUR** sub is junk.

:-)
well my sub has a screen door ! ha !
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duane massey

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Re: "True sub"
« Reply #12 on: June 27, 2015, 01:28:44 am »

Jeff, that explains why no one will go to sea with you....
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Duane Massey
Technician, musician, stubborn old guy
Houston, Texas

Jeff Bankston

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Re: "True sub"
« Reply #13 on: June 27, 2015, 02:11:13 am »

Jeff, that explains why no one will go to sea with you....
no one comes to sea me either !
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chuck clark

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Re: "True sub"
« Reply #14 on: June 27, 2015, 05:02:10 am »

no one comes to sea me either !

Some soundguys aren't sure whether they're coming or going. Ha!
Well if I recall back in the day, most 15" and a few 18" speakers were found in 2 way boxes and had frequency responses up to and beyond the 1k hz region.  Then we started seeing a few drivers that were optimized for subwoofer use and had heavier cones and more mass so they rolled off around 300 hz. so ..not so good for bi-amping anymore. Thus the term-"true" subwoofer. 
Since it is NOT a defined engineering term and there are hundreds of different kinds that are optimized for different kinds of boxes, "making a list" of them strikes me as a good way to waste a lot of time. It would be much more productive to define your intended use requirements. Like if your touring it'll need handles and weigh less than 500lbs. Will it need flying hardware, weather-proofing, ...will it need to fit in a mini-van? -stuff like that to whittle down the choices so we don't have to spend the rest of our lives arguing what would be "best". The more you can define your needs, the better. Unless your paying us by the hour. In that case, by all means , let's start w/ a general discussion and include as many vague terms as possible. Lol!
Have a lovely day y'all !
Chuck
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Jeff Bankston

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Re: "True sub"
« Reply #15 on: June 27, 2015, 05:27:05 am »

whats a true horn ?
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Ivan Beaver

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Re: "True sub"
« Reply #16 on: June 27, 2015, 08:17:24 am »


Since it is NOT a defined engineering term and there are hundreds of different kinds that are optimized for different kinds of boxes, "making a list" of them strikes me as a good way to waste a lot of time. It would be much more productive to define your intended use requirements.
Just for argument sake-I would say that "sub" is defined, as beling "below".

So it would operate below the freq response of the rest of the system.

Until the response of the rest of the rest of the system is defined, then sub could be almost anything.

If the system is a single 2" TV speaker-then a "true sub" could need to go as high as 300Hz.

There is no "simple answer" to a complex question that no usable data.
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Ivan Beaver

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Re: "True sub"
« Reply #17 on: June 27, 2015, 08:22:38 am »

whats a true horn ?
You first have to start to define the usage of the "horn".

Yeah I know-making people THINK once again-where is the "simple WRONG answer"?

Is the horn used for pattern control? -If sdown to what freq?

Or impedance matching from the driver to the outside air-for increased sensitivity/efficiency?  or both?

How effective does it have to be to considered a "true horn"?

Yeah, I know-the boring details------



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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Tim McCulloch

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Re: "True sub"
« Reply #18 on: June 27, 2015, 01:01:20 pm »

whats a true horn ?

The kind you find on cattle. ;)
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"Practicing an art, no matter how well or badly, is a way to make your soul grow, for heaven's sake. Sing in the shower. Dance to the radio. Tell stories. Write a poem to a friend, even a lousy poem. Do it as well as you possible can. You will get an enormous reward. You will have created something."  - Kurt Vonnegut

Jeff Bankston

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Re: "True sub"
« Reply #19 on: June 27, 2015, 03:33:08 pm »

The kind you find on cattle. ;)
I thought that was cow bell. Man , I have got a lot to learn !
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