D/A Configuration - T+A PSD 3100 HV User Manual

D/A configuration

PCM D/A mode
DSD D/A mode
Output
Bandwidth
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The PSD 3100 HV can exploit four different filter types offering different tonal charac-
ters:
•OVS long FIR
is a classic FIR filter with an extremely linear frequency response.
•OVS short FIR
is a FIR filter with improved peak handling.
•OVS Bezier / FIR
is a Bezier interpolator combined with a IIR filter. This process produces a result very
similar to an analogue system.
•OVS Bezier
is a pure Bezier interpolator – offering perfect "timing" and dynamics.
For special applications, e.g. if the source device is doing the upsampling (such as a PC
with Signalyst® HQ player), the upsampling in the PSD 3100 HV can be deactivated. The
following two NOS modes are available for this purpose.
• NOS 1
With this setting the upsampling of the PSD 3100 HV is deactivated and the analog out-
put filter is automatically set to 60 kHz for sampling rates of 44.1 and 48 kHz. For higher
sampling rates, the setting you selected under the Bandwidth menu item is used.
• NOS 2
If you select this setting, upsampling of the PSD 3100 HV is deactivated. The ana-
logue output filter always has the value selected under the menu item Bandwidth.
The PSD 3100 HV offers two different converter modes for DSD playback.
•DSD 1
This is a long filter with very low noise and very good noise rejection.
•DSD 2
In DSD 2 mode, two shorter filters operate in parallel. This filter produces even lower
distortion than DSD 1 mode.
With particular instruments or voices the human ear is certainly capable of detecting
whether absolute phase is correct or not. However, absolute phase is not always cor-
rectly recorded.
In this menu item the phase of the signal can be changed from normal to inverse phase
and back.
In this menu item, the bandwidth of the analogue output filter can be switched between
60 kHz (normal mode) or 120 kHz (‚WIDE' mode).
The 'WIDE' setting allows a more spacious music reproduction.