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TL design vs driver parameters
TL design vs driver parameters
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Old 20th September 2006, 10:03 AM   #1
Henkjan is offline Henkjan  Netherlands
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Default TL design vs driver parameters

So I built this nice sub with the Tangband W69-1042 see http://www.diyaudio.com/forums/showt...hreadid=86388. just a straight TL with A=Sd.

Since a co-worker would like a new sub, and he thought the sub with the W69 was rather large, I thought of a similar TL employing the W6-1108SA. both fs and Qt are close to those of the W69 so it was my expectation that I could simply scale the design for the smaller Sd. NOT! The simulation of the TL with MLK's 'driver offset' sheet showed a different respons, much less low. where the W69 had a rather flat curve from 100 down to 40Hz (see pic below) the W6 rolled off much earlier (sorry, forgot to make a snapshot, will post this later) with -5bB @40Hz. I tried to tweak the design, longer pipe, taper but the basic form of the curve remained the same

so there's more than just fs and Qt ....


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