Is this a stupid idea? FR125s with 12" - diyAudio
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Old 14th May 2007, 06:18 AM   #1
Foxx510 is offline Foxx510  Australia
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Default Is this a stupid idea? FR125s with 12"

Just thinking too much as usual, and wondering how a CSS FR125s would go with a 12inch woofer in a triangle-baffle shaped cabinet. Needs to go pretty loud. Would the FR125s keep up with the 12" at highish spl given that it would be high passed? I keep hearing how nice these fullrangers are and I would love to try some, but I generally listen quite loud and to music with lots of bass content.
Feel free to tell me it's a stupid idea.
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Old 14th May 2007, 08:38 AM   #2
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Hi,

Not a stupid idea at all.
Asked something similar myself>

can fr125s do loud?
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Old 14th May 2007, 10:09 AM   #3
tinitus is offline tinitus  Europe
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Its not a good idea at all to mate a FR125 with a 12"

FR125 is far too inefficient and cant play loud at all
it might help with a highpass filter, and get the midrange up a bit, but I dont think it will be sufficient - you will be low on midrange

If you want to play loud, then a widerange that will do that, might still be in need of a supertweeter

Maybe something like this one

http://professional.celestion.com/pr...etail.asp?ID=1
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Old 14th May 2007, 10:16 AM   #4
Foxx510 is offline Foxx510  Australia
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Hmmm it is inefficient isn't it. I guess it's like being good at maths and a great footballer....
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Old 14th May 2007, 10:19 AM   #5
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Considering the sensitivity of the average 12" sub and baffle step I don't see why they couldn't be used together. Heck he may not even need BSC.
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Old 14th May 2007, 10:25 AM   #6
tinitus is offline tinitus  Europe
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I think you say something like .... "no free lunch" or maybe ... "you cant have it all" ... or .." have your cake and eat it too"

Here we say ... " the trees dont grow into heaven"... or .. "you cant blow and have flour in your mouth"




I think the FR125 is somewhat overrated - well its damm fine at low levels fore sure, but I would never push it hard and expect it to "rock and roll" at loud levels

It has been said that there is no substitute fore high sensitivity
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Old 14th May 2007, 10:29 AM   #7
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umm...ok...an explanation would be more helpful of why or why not.
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Old 14th May 2007, 10:33 AM   #8
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High sensitivity or high SPL capability? I'm buidling a PA dipole to check out the former, but I agree with the latter for sure. Although the may not be as important to the OP.
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Old 14th May 2007, 10:35 AM   #9
tinitus is offline tinitus  Europe
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At some time I thought about using multiple FR125, but it gets rather expencive - and after I have listened to one, I dont think its worth the effort

edit ... I guess its a matter of distortion figures and how much power the driver can take

But I might make an experiment and make a highpass filter fore my FR125... and give it a listen


edit .... this new little 88db "fellow" might be interesting, and cost is only 11 EUR

http://www.visaton.de/de/chassis_zub...d/frs8m_8.html
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Old 14th May 2007, 10:48 AM   #10
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ah. I see.
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