PS Audio Stellar Strata, Руководство пользователя для владельца

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Stellar Strata Amplifier
Operation Guide
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Menu Features
(Continued) Filter
The filter selection feature allows you to choose the properties of the digital filter in the Strata’s
built-in DAC. The filter selection does not affect the analog sources.
Digital filters generally have a trade-off between how sharp the filter is and how much ringing
results. A sharp filter allows the most high-frequency signal to pass through, but at the expense of
greater ringing. There are three filter options in the Stellar Strata Amplifier.
Filter 1 is “Fast Roll-off Linear Phase”. This filter has very good high frequency response. It has
slightly less ringing than Filter 2 but it does exhibit pre-ringing. While this filter may actually
measure the best in a laboratory, we found it to be the most analytical sounding. This is the
default filter for the Strata.
When this filter is activated, an F1 will appear in the icon bar on the top of the Home screen.
Filter 2 is “Slow Roll-off Linear Phase”. This filter is the least sharp and has the least amount of
ringing. There is a slight loss in high frequencies that might be noticeable on CDs and other
44.1KHz sample rate material. It should not be detectable at all with higher sample rate sources.
When this filter is activated, an F2 will appear in the icon bar on the top of the Home screen.
Filter 3 is “Fast Roll-off Minimum Phase”. This filter has more extended high frequency response
than Filter 2 but more ringing as well. There is no pre-ringing (an undesirable artifact of some
digital filters) so this is still a very musical sounding filter. Some people may prefer this filter for
44.1KHz source material.
When this filter is activated, an F3 will appear in the icon bar on the top of the Home screen.