CXA8042 on the Sony DVP-S9000ES - Page 2 - diyAudio
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Old 27th March 2002, 03:49 PM   #11
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Join Date: May 2001
Location: USA Dallas
This is taken from LC Audios home page

The filter used is a second order Linkwitz-Reilly made with high grade (Unmagnetic) Poly Propylene capacitors from Vishay International. The cutoff frequency is set to 102 kHz for maximum overtone transparency and 100% compatibility with the host CD.
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Old 27th March 2002, 06:40 PM   #12
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Join Date: May 2001
Location: London UK
Default Zapfilter on the 9000ES

It is not at all clear what is said. If the Zap lets through everthing to 100 kHz, then it may well fry tweeters on SACD which is very energetic above 22kHz, the CD cut off frequency.

On CD, a cut off well over 22kHz will allow refelctions back into the audible frequency range and cause intermodulation.

LC needs to explain what the text means, and where the filter starts to roll off.

For you information I have the ZAP but WILL not use it on SACD until I know its characteristics.
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