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a CD player or DVD player to one of the available digital inputs in the PR350 B and
use the balanced 24bit D/A conversion for L and R channels, built into the PR350 B.
The Space PR350 B is also optimised for D/A conversion of the 24bit/96kHz stereo
DVD disc’s with music.
2. Volume controls
The master volume level is set by rotating the volume knob on the front panel or by
using the “VOL ⇑” or VOL ⇓” key on the remote control.
The volume adjustments are scaled, so that at normal listening levels, the setting is
very accurate with 0.5dB steps, while at lower levels the step size increases to allow
a more rapid setting. This scaled volume setting may be the most convenient for
normal users, and is set as default.
However, it is possible to change the volume to 0.5dB steps for the entire volume
range by changing it in the config.volume menu.
The volume trims between each channel are set under the config.noise menu by
comparing the perceived sound volume from each channel via the built-in noise
generator, so that you can compensate for speaker sensitivity differences and
distances from listening position.
We recommend that the settings for each channel obtained under the config.noise
option are used as initial settings for each of the memory banks: Stereo, ProLogic II,
Dolby Digital and DTS. See further descriptions about the mem banks in section 5.
However, each surround mode may lead to a different setting of volume trims based
on individual requirements. At Thule Audio’s experience in Dolby Digital and
ProLogic II mode, the gain can be increased 3 – 6 dB in the surround speakers than
“measured” under the noise test, to obtain a more realistic surround image. And also
in DTS mode the gain can be increased with 2 – 4 dB in the surround speakers.
These more practical settings based on individual requirements can then be stored
under each memory bank for automatic reload depending on actual surround mode.
Each movie or music source may also lead to a different setting of volume trims.
Therefore it is possible to adjust the volume trim “on the fly” directly by pushing the
channel “L”, “C”, “R”, “SL”, “SUB” or “SR” key on the front panel or remote control.
Subsequently the extended surround channels “SC”,”SSL” and “SSR” can be
selected for adjusting by using the arrow keys. The channel level can then be
adjusted by rotating the volume knob on the front panel or by pressing the “VOL ⇑”
or VOL ⇓” key on the remote control.
The volume trim settings changed “on the fly” will return to the default settings stored
in the memory banks, when the PR350 B is set into standby or powered off.
By pushing the “SUB” key on the front panel in for 2 seconds the LFE (low frequency
effect) channel is selected for adjusting. The LFE channel is the bass information,
which is sent to the subwoofer or alternatively sent to the “L” and “R” channels, if the
subwoofer is deactivated. In this way it is possible to adjust the low frequency
content even when no subwoofer is present.
The normal display returns 15 sec. after the last action on any of the channel select
keys or by pushing the ”>VOL” key.