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Old 12th August 2008, 02:59 PM   #11
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Default A review by DIY99

By DIY99, You do not need to be logged in to view. It is in Chinese but you can read the pictures.
http://bbs.hifidiy.net/viewthread.ph...age%3D1&page=1
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Old 12th August 2008, 03:05 PM   #12
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Default His experimental driver with field coil

Again, It is in Chinese. You do not need to be logged to view the pictures. There are detailed photos about the magnet circuit and voice coil. There is a picture of his experimental Alnico version too.

field coil experiment
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Old 12th August 2008, 03:07 PM   #13
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Default Re: Re: Re: Re: New 8" full range speaker from L CAO

Quote:
Originally posted by Brisso57



OK. Fine.
The literal meaning is as commented. Is this correct? Are 2/3 of the production spiders rejected as substandard?
It's quite a relevant question actually.

PS "Typical" of whom? Someone outside the cheer-squad? If a statement is made, let it be defended. That's how it is in democracies.
Thank you for your comments. I will direct your question to L CAO. I hope he can give you some answers soon.
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Old 12th August 2008, 03:15 PM   #14
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Default About price

He has not set the price for exporting yet. The price in China yields excellent price/performance ratio.
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Old 12th August 2008, 03:51 PM   #15
cd813 is offline cd813  China
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i know the price is about 200USD/pairs
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Old 12th August 2008, 04:02 PM   #16
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Default Re: New 8" full range speaker from L CAO

Quote:
Originally posted by HighVividity


Thank you for your comments. I will direct your question to L CAO. I hope he can give you some answers soon.
I asked L CAO and he said the spiders were manufactured by others for him, and only the best were picked to ensure the quality of his drivers.
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Old 12th August 2008, 04:09 PM   #17
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Quote:
Originally posted by cd813
i know the price is about 200USD/pairs
The price in China is 1500 RMB. with a current exchange ratio of 6.87, it is $218.34 a pair. But the shipping will add an appreciable chunk to that price.
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Old 12th August 2008, 04:42 PM   #18
GM is online now GM  United States
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Default Re: New 8" full range speaker from L CAO

Quote:
Originally posted by HighVividity

They gave me many valuable critics and suggestions.[/IMG]
Thanks for the detailed measurements, but with relatively high Q peaks in the consonant and especially in the sibilance BWs, at USA pricing these would have to be addressed before I would want to spend any quality time with them.

GM
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Old 12th August 2008, 05:06 PM   #19
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Default Re: New 8" full range speaker from L CAO

Quote:
Originally posted by GM


Thanks for the detailed measurements, but with relatively high Q peaks in the consonant and especially in the sibilance BWs, at USA pricing these would have to be addressed before I would want to spend any quality time with them.

GM
Thank you for your comments. Are you referring to the lump between 1KHz and 5KHz before equalizing network is applied? Please help me here because I do not know whether using an equalizer is a good idea or bad idea. Thank you!
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Old 12th August 2008, 05:24 PM   #20
GM is online now GM  United States
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You're welcome! I'm referring to the peaks at ~2.5, 4, and particularly at 7 kHz in this plot: http://www.wintersweet.com/permanent/LCAO_equalized

These are acoustic problems that need an acoustic solution (selective doping and/or some form of phase plug and/or ?), so no broadband EQ should be used IMO.

GM
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