Vortex Media VTX 1000 Benutzerhandbuch
A subwoofer can be used with the SoundStation VTX 1000 to enhance the low frequency response when
connected to another party via wideband mode. The use of the subwoofer is optional when using the
Vortex as there may be other loudspeakers in the room that you may wish to use.
connected to another party via wideband mode. The use of the subwoofer is optional when using the
Vortex as there may be other loudspeakers in the room that you may wish to use.
If you do want to use a subwoofer, you can connect an output of the Vortex directly to the subwoofer as a
subwoofer typically accepts a line level input. You will need to set the output gain of the Vortex to -30 dB
because if the Vortex output is set higher than -30 dB, the subwoofer voice coil may "bottom out" on high
amplitude transient sounds. This can be destructive because when a loudspeaker "bottoms out", the voice
coil moves beyond its designed physical limits. If this happens enough, the voice coil may be damaged, and
then the subwoofer would not work properly. A setting of -30 dB should give you enough headroom so that
if the subwoofer voice coil does bottom out, it should only be during brief, high-volume signals which would
probably only occur during playback of program audio.
subwoofer typically accepts a line level input. You will need to set the output gain of the Vortex to -30 dB
because if the Vortex output is set higher than -30 dB, the subwoofer voice coil may "bottom out" on high
amplitude transient sounds. This can be destructive because when a loudspeaker "bottoms out", the voice
coil moves beyond its designed physical limits. If this happens enough, the voice coil may be damaged, and
then the subwoofer would not work properly. A setting of -30 dB should give you enough headroom so that
if the subwoofer voice coil does bottom out, it should only be during brief, high-volume signals which would
probably only occur during playback of program audio.
We also recommend creating a low pass filter in the Vortex to filter any signal that will be sent to the
subwoofer. We recommend using a low pass or a Linkwitz-Riley low pass at 250 Hz. This is recommended
in order to remove the high frequency energy to the subwoofer since it cannot reproduce mid and high
frequencies. You may also want to place a high pass filter on the output(s) of the Vortex that drive other
loudspeakers (other than the subwoofer). The reason for this filter is to remove the low frequency energy
from these loudspeakers that may not be able to properly reproduce signals below 250 Hz. This is the
purpose of the subwoofer.
subwoofer. We recommend using a low pass or a Linkwitz-Riley low pass at 250 Hz. This is recommended
in order to remove the high frequency energy to the subwoofer since it cannot reproduce mid and high
frequencies. You may also want to place a high pass filter on the output(s) of the Vortex that drive other
loudspeakers (other than the subwoofer). The reason for this filter is to remove the low frequency energy
from these loudspeakers that may not be able to properly reproduce signals below 250 Hz. This is the
purpose of the subwoofer.
W
IRING
Connect the Positive conductor of the Vortex device to the Tip of the RCA connector and the Negative
conductor of the Vortex device to Shield of the RCA connector. The shield of the cable is not connected.
conductor of the Vortex device to Shield of the RCA connector. The shield of the cable is not connected.
Refer to Cable Drawing 2 in the Vortex Output Wiring section of the Appendix.
5.) C
ONNECTING THE
T
ELEPHONE LINE TO THE
S
OUND
S
TATION
VTX 1000
AND A
V
ORTEX
D
EVICE
There are 2 ways to connect the RJ-11 telephone line to a system:
20