Box Design with WinISD help

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mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: January 11, 2005 at 2:57 PM / IP Logged

Hi guys,

Try to design my Pioneer TSW305C with WinISD....and this is results:

Box Design with WinISD help -- posted image.

From what i heard the graph "yellow" line need to be with 0db to -3db, as it show on this design the line is way over, wat r another alternatives so that the yellow line r within 0db to -3db???

Cheers :)

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Drewt

Copper - Posts: 183

Joined: January 04, 2005

Location: United States

Posted: January 11, 2005 at 3:53 PM / IP Logged

put it in a sealed box

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mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: January 11, 2005 at 4:02 PM / IP Logged

Nope seal is even worse!!!

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DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: January 11, 2005 at 4:34 PM / IP Logged

Looks to me like your enclosure is too large. Why did you use 78.4 litres when the Pioneer recomendation for a ported enclosure is 49.7 litres?

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mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: January 11, 2005 at 5:24 PM / IP Logged

Ok this is what Pioneer recommended...i see not much of a diff :(

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DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: January 11, 2005 at 5:56 PM / IP Logged

Here's the curve I get from WIN ISD using the correct driver parameters (that I posted in your other thread.)

Box Design with WinISD help -- posted image.

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mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: January 11, 2005 at 9:53 PM / IP Logged

DYohn here is the Pioneer sub TWS-305C (SVC)Thiele/Small specs of the driver....

Pioneer TS-W305C

Size: 12"

Nominal Power: 400W

Max Power: 800W

Impredance: 4 Ohms

Sensivity: 89dB/W

Frequency: 18-2,000Hz

Displacement: 0.083cu.ft

Recv: 3.0

Levc: 2.107

Fs: 32.7

Qes: 0.348

Qts: 0.340

Vas: 1.875cu.ft

Rms: 1.875

Mms: 138.20

Cms: 1.717x10 -4

Diam: 242cm

BL: 15.988

Xmas: 9.2mm

Pioneer recommend enclousure volume for sealed is: 1.5cu.ft

and vented is 1.65cu.ft + 3" port x 6" length

Can you double check for me????

Thanks :)

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Box Design with WinISD help

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