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Beregning af isobarisk kabinet

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ronnie rasmussen View Drop Down
Excentrisk
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Joined: 12 Okt 2010
Location: Ã…rhus
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ronnie rasmussen Quote  Post ReplyReply Direct Link To This Post Topic: Beregning af isobarisk kabinet
    Posted: 29 Jan 2012 at 00:01
er der nogen der vil forklare hvordan jeg beregner et isobarisk kabinet

og evt et bÃ¥ndpas? 

er ved at lave lidt projekt til bilen

10'' Hertz 250
D mm: 210
Xmax mm: 10
Re ohm: 3,2
Fs Hz: 44,7
Le mH@1Khz: 1,31
Le mH@10kHz: 0,62
Vas lit: 20,49
Mms gr: 103,6
Cms mm/N: 0,12
BLT-m: 11,12
Qts: 0,64
Qes: 0,76
Qms: 4,12
Spl dB: 93
http://forum.speakerbuilder.dk/forum_posts.asp?TID=401&title=ronnies-diy
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D A O View Drop Down
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Joined: 09 Mar 2010
Location: Fredericia
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Post Options Post Options   Thanks (0) Thanks(0)   Quote D A O Quote  Post ReplyReply Direct Link To This Post Posted: 04 Mar 2012 at 04:07

Isobaric (most commonly “push-pullâ€)

An enclosure that uses two woofers mounted face to face, one wired reverse polarity.  This alignment effectively cuts the vas in half.  The general rule of thumb for an isobaric enclosure is twice the woofers, twice the power, and half the box size3.

Pros: Very small enclosures, increased power handling, driver non-linearities canceled out (lower distortion).

Cons: Very low efficiency, due to the small size of the recommended enclosures for our woofers an isobaric alignment is not practical.

http://sound.westhost.com/project1052.htm
Lidt at læse på, håber det hjælper :-)



Edited by D A O - 04 Mar 2012 at 14:23
mvh Hans

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