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#1 |
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diyAudio Member
Join Date: Nov 2011
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Any suggestions. My budget around 150.00 per woofer. Must be cast frame and 4 ohm
thanks
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#2 | |
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diyAudio Member
Join Date: Aug 2008
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Quote:
![]() I often think this sort of thing is a WRONG QUESTION. You can pretty much get ANY driver working with the right size cabinet. Question of understanding Thiele-Small parameters and particularly Qts and your amp. As in this design: Arpeggio Loudspeaker All things being equal, I don't see any particular advantage in 4 ohms. What you want to focus on is matching sensitivity and thinking about your cabinet size and type. tinitus does a very nice 4 ohm 12" design here with a bit of a cheapie 12" unit in sealed box approach: Classic monitor designs? 12" units do tend to sag a bit in the long run, and rub voice coils, but you take your chances...here's some nice SEAS units to look at though. I don't know whether they have exactly what you want: Welcome to SEAS, THE ART OF SOUND PERFECTION BY SEAS Sorry if that is a bit annoying. You need to ask a clearer question. Otherwise it's just a vague matter of opinion you'll get back! |
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#3 |
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diyAudio Member
Join Date: Nov 2011
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I'm replacing a blown 4 ohm cerwin vega woofer. I would like something that can handle more power. The original woofer was rated at 4 ohms.
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#4 | |
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diyAudio Member
Join Date: Aug 2008
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Quote:
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#5 |
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diyAudio Member
Join Date: Nov 2003
Location: Brighton UK
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Hi, http://www.mcmelectronics.com/search.aspx?C=0000000261 rgds, sreten.
__________________
There is nothing so practical as a really good theory - Ludwig Boltzmann When your only tool is a hammer, every problem looks like a nail - Abraham Maslow |
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#6 | |
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diyAudio Member
Join Date: Sep 2010
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Quote:
There's also the matter of re-tuning the box. All that aside an Eminence Deltalite 2512 could be a good starting point. |
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#7 |
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diyAudio Member
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Ideally it would be good to match the characteristics of the replacement driver to the original within a reasonable ballpark. Similar Qts, Fs, Vas to match the box and tuning properly, similar impedance and coil inductance to match the x-over properly. And similar sensitivity in the intended range to match the other drivers.
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#8 |
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diyAudio Member
Join Date: Nov 2011
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The speaker cabinet is vented in the back . It is the Cerwin Vega LS 12 . 33" tall 15" wide 13" deep. The impedance on the coil with my meter is 3.7 ohms. Hope this helps.
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#9 |
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diyAudio Member
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maybe this: Goldwood GW-12PC-4 12" Heavy Duty Woofer 4 Ohm 290-332
Actually... wait, that one isn't gody enough.. Need something to to replace that orange flare from the originals: http://www.parts-express.com/pe/show...number=293-483 [fyi: that second suggestion should probably be ignored] Last edited by mdocod; 15th January 2012 at 04:13 PM. |
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#10 |
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diyAudio Member
Join Date: Apr 2007
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Well , you just need to replace one woofer ? I guess both .
Now you're having it crossed at about 500 Hz to the midrange . I think that if you're looking for quality , to search for a 8 Ω speaker. Putting a 4 Ω speaker like CW did , it gives you a sense of hearing a more powerful speaker ,and facilitates the crossover design since it employs lower inductance values for low pass ;then , it easily meets the sensibility of mid and tw . I know it may be difficult to choose a speaker that fits ...but it can be done. I would look for the Beyma 12B100 or 12BR70 ...I think the 12 B100 comes also in 4 Ω version ( or 8+8 )
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