Originally Posted by Kerry
Has anyone measured the output of the Meridian apodising filter compared to the previous linear filter or other filters to objectively compare their frequency response? That might be one way to understand how much of the reduction of ambiance is indeed pre-ringing reduction or high frequency response reduction. From what I've read (not much), like other aspects of audio design, there is no free lunch with filter design. It's about trade offs.

There are some measurements in John Atkinson's review of the 808.2

http://www.stereophile.com/content/...rence-cd-playerpreamplifier-measurements

According to those results there is no problem with frequency response.

Unfortunately John did not measure the phase response. There are published simulations of phase response but links to that site are not allowed on this forum


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