Marantz SA-11S1 - Manual (Page 20)

ENGLISH
15
7 audio CD, CD layer of Super Audio CD, and high sound quality stereo area
Filter operations
The filter settings can be made while the track is stopped. The filters shown in the table below are available for providing distinctive
filtering according to the operation and Audio CD or Super Audio CD.
Each time the
FILTER button is pressed, the filter types cycle from FIL1 → FIL2 → FIL3 → FIL1.
The filter setting has a memory retention function so that the setting remains stored and unchanged even when the disc is changed
or the power is turned off.
Filter Selection Table
This is a direct mode that does not perform any
filtering on the DSD data. The original source data
is reproduced without any alteration.
This filter attenuates sections of the DSD data that
exceed 100kHz. In the DAC, operation is also
asymmetric for giving priority to DAC resolution
and raising the multilevel perfor mance to
approximately 40 levels.
This filter attenuates sections of the DSD data that
exceed 100kHz. In the DAC, it provides fully
symmetric operation for 23 levels.
Filter type Audio CD Super Audio CD
FILTER 1
FILTER 2
FILTER 3
This is an original filter using short FIR with
asymmetric preecho and postecho in the impulse
response. The analog characteristics exhibit slow
roll-off. This creates a sound venue with richness,
smoothness, and depth consistent with the image
of analog record performances.
This is a filter without preecho or postecho in the
impulse response. It is a special short coefficient
FIR filter which gives priority to fs (original sample
data). With analog characteristics, it acts as a slow
roll-off filter to improve sound quality by faithfully
reproducing music signals from deep bass to
midrange.
This is a long coefficient FIR filter with symmetric
preecho and postecho in the impulse response.
With analog characteristics, it acts as a standard
sharp roll-off filter. It copies the SAA7220PB
coefficient of 4fs operation that Marantz adopted
in the past with the CD-94, CD-95, CD-95SE and
others as a referential digital filter for audio CD,
but then boosts operation 8-fold.
Note: When playing back the high sound quality stereo area in Super Audio CDs, the analog output level varies slightly in
each filter.
OPERATION