C.E.C. DA3N Owner's Manual - page 10
D/A CONVERTER DA3N
10
Push the DF button on the remote control to select a digital filter FLAT or
PULSE.
●
The FLAT digital Filter is very common in digital audio items. The
frequency response is almost perfect, but such filter cause "ringing" in the
time domain. Some energy of a pulse signal is distributed in the time domain,
before and after the pulse centre. Any ringing before the signal does not exist
in nature.
●
The PULSE filter avoids the problems in the time domain and thus has
a very good response in the time domain. The frequency response of the
PULSE digital filter shows a soft roll-off at high frequencies. This results in
about -dB at 0kHz with an input sampling frequency of 44.1kHz. For higher
sampling frequencies the roll-off is irrelevant and the "PULSE" filter is the
best choice. For 44.1kHz and 48kHz the better result may depend on the
whole system as well as personal preferences.
Digital Filter
adjusted. Turn counterclockwise to minimize the volume to see VOL
MUTE. Turn clockwise to see -90dB, -80dB, -7dB by each step. After
-7dB one step goes by 6dB up to -54dB, and up to -4dB by 3dB. After
-4dB volume will be increased by 1dB at one step.
Note:
VOLUME woks both headphone and Variable outputs. Unused
one should be switched off or disconnected.
❽
HEADPHONE Jack
Headphone output jack for standard 6.3 mm plug.
Note:
For using a headphone with 3.5mm mini plug, purchase a 6.3mm
conversion plug from a dealer.
Before using your headphones for listening, turn the volume
to the minimum and insert the headphones plug into the jack.
Excessive sound pressure from the headphones may cause
hearing loss to your ears.
VOL MUTE
-90dB
-80dB
-72dB
-54dB
-42dB
0dB
(6 dB changes by step)
(3dB changes by step)
(1dB changes by step)
(Minimum Volume)
(Maximum Volume)