audiopraise VanityPRO User Manual - Page 13

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audiopraise VanityPRO User Manual
Sharp HB
This filter optimized for 176.4kHz output sample rate has sharp roll-off with cut-off
frequency approximately 44kHz. Chose this filter for high bandwidth and high attenuation of the
ultrasonic noise.
Slow HB
This filter optimized for 176.4kHz output sample rate has slow roll-off with cut-off
frequency approximately 55kHz. Chose this filter for the best transient response at the expense
of the highest level of the ultrasonic noise.
There is no general rule for which filter characteristic is the best. The best sounding filter
characteristic should be selected by practical listening and evaluation of sonic qualities for each
specific audio chain configuration. With a very linear audio system with sufficient analogue path
bandwidth the Slow HB filter at 176.4kHz would be expected to be preferred as it maintains the
highest level of DSD bandwidth (including the ultrasonic noise) and the best transient response.
Page 13 of 19
– User Manual v1.2
Vanity
PRO