HELIX DSP PRO Manual page 22

HELIX Extension Card Slot (HEC Slot)
It is possible to extend the functionality of the HELIX
DSP PRO by inserting an optional HELIX Extension
Card (HEC) - for example a Bluetooth Audio Strea-
ming module, an additional optical digital input or an
optical digital output.
To install a HELIX Extension Card it is necessary
Unique Features of the HELIX DSP PRO
96 kHz sampling rate
The HELIX DSP PRO allows to handle all signal
management with the doubled sampling rate of
96 kHz. Thus the audio bandwidth is no long er li-
mited to usual values like 22 kHz but allows an ex-
tended frequency response to more than 40 kHz.
Doubling the sampling rate requires significantly
higher DSP power as the number of possible arith-
metic operations is halved. Only the implementation
of the latest DSP chip generation allows raising the
sampling rate to 96 kHz and adding new features
plus additional channels at the same time.
Power Save Mode
The Power Save Mode is incorporated in the bas-
ic setup. It allows to significantly reduce the power
consumption of the amplifiers that are connected to
the HELIX DSP PRO once there's no input signal
present for more than 60 seconds.
Please note that in many up-to-date cars with "CAN"
or any other internal bus structures it may happen
that the radio remains "invisibly" turned on for up to
45 min. even after leaving the car!
Once the "Power Save Mode" is active the Remote
Output and therefore the connected amplifiers will
be turned off.
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to remove the side panel of the DSP PRO and re-
place it by a new side panel that comes with the
HEC. Any further mounting information will be found
in the instruction manual of the respective HELIX
Extension Card.
The HELIX DSP PRO will reactivate the Remote
Output within a second if a music signal is applied.
It is possible to either modify the turn-off time of
60 sec. or completely deactivate the "Power Save
Mode" via the DSP PC-Tool software.
Start-/Stop capability
The switched power supply of the HELIX DSP PRO
assures a constant internal supply voltage even if
the battery's voltage drops to 6 Volts during engine
crank.
Automatic Digital Signal Detection
Switching from analog input to the digital input is
done automatically as soon as a signal is detected
on the optical input. This feature can be deactivated
in the DSP PC-Tool software. Alternatively you can
use an optional remote control for man ual switching
between analog and digital inputs.
HELIX Extension
Card Slot