Passive high pass filter for tweeters |
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7810 |
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Not really, calculations are almost always way off to the real world. Tweeters are a bit easier but CD's usually have a rising response in the 2-4K range that need to be tamed, simple crossover at like 1.2KHz will leave that lump untamed and it will sound horrible. So then you use higher electrical crossover point to achieve lower acoustical crossover point. Calculators are calculating the electrical crossover point. It has nothing to do with the acoustical one that you actually need.
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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tv00
Old Croc Joined: 10 August 2009 Location: Denmark Status: Offline Points: 1886 |
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LOL - I consciously avoid that kind of CD's and put my xover above 4 khz.
You can't really blame the crossover for the CD's not playing flat. One driver from 1-20k just never sounds good to me except if it is bms 4590 or the like. |
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7810 |
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No such thing as THOSE cd's. They are all like that in a CD horn. It is a function of the horn, not the driver it self.
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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tv00
Old Croc Joined: 10 August 2009 Location: Denmark Status: Offline Points: 1886 |
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I see, but the usual eardamaging 4 khz distorion is the driver :-(
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Andy Kos
Old Croc Joined: 15 May 2007 Location: Southampton Status: Offline Points: 3035 |
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Calculators are a good place to start... especially for someone who doesnt know what they are doing - it will get them close to what they want. It's all well and good stating that designing a crossover around measurements is better, but most people do not have the correct tools, or the ability to do this. This is why there are so many calculators which just assume 8 ohm impedance and do the standard maths around this - it will get you close enough in most cases.
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just a guy with a warehouse and a few speakers... www.bluearan.co.uk
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stevie
Registered User Joined: 16 March 2008 Location: Dorchester Status: Offline Points: 425 |
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If people don't have the correct tools, they shouldn't be encouraged to do what can't be done without the correct tools. My main objection to crossover calculators is that they give people a false sense of security because they suggest that there's nothing more to it than entering a few values on a website.
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snowflake
Old Croc Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3118 |
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some drivers are designed for use on exponential horns, some for use on conical horns. you only get a problem if you choose the wrong driver for your horn. or if the driver is just bad and can't play flat on any horn.
Edited by snowflake - 11 February 2016 at 11:39am |
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