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speakr terms ? vas,fs,qts, etc. (1 Viewer)

MichaelDW

Stunt Coordinator
Joined
Dec 2, 2001
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60
I have been looking at the idea of building a speaker box and have a ? on vas. is that the desired volume for that speaker to function properly? say I have a volume of 1.8 cu.ft to play with and the speaker vas rateing is 2.15 will it not go as low in frq. as said on the rateings? i will start off with that ? as for the others{fs,qts,qes} if you can explain those in simple terms would be great thanks
 

Patrick Sun

Senior HTF Member
Joined
Jun 30, 1999
Messages
39,408
Here's a mathy link to derive these parameters.
Here's a page of definitions.
Here's a page loaded with links. Get WinISD from this page, and create a driver profile for the driver you want to use, and then change the volume around and see what it does to the response of the curve.
And there's always Vance Dickason's "The Loudspeaker Design Cookbook 6th edition" that can be found at most online bookstores, like Amazon and Barnes & Noble.
 

Hank Frankenberg

Senior HTF Member
Joined
Oct 13, 1998
Messages
2,573
Here's a handy little reference that actually goes pretty deep: "Advanced Speaker Systems", a Radio Shack book, part number 62-2317.
 

Mark Larson

Supporting Actor
Joined
Mar 3, 2002
Messages
537
Can anyone tell me what the Vas relates to the size of the box? I hear the old SVS driver has a Vas of x.xx, so how do i relate that to the size of my box?
 

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