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7. About the M 720 FR Wireless loudspeakers
Technical specifications and operating manual
this power mode is suitable for extended breaks
between operation(e.g., several weeks).
Figure: Rear panel of transmitter unit
Frequency
With this recessed control, you can set the radio
frequency for the LT 7 Wireless set. We recom-
mend using a small screwdriver for accessing this
control. Please note that you need to set up the
same radio frequency on the transmitter unit and
the M 720 FR Wireless in order for them to con-
nect.
Line In
Use this stereo cinch input to connect the two
channels you wish to transmit to the wireless
speakers – e.g., Surround Left/Surround Right.
If your AV receiver/amplifier does not provide
preamp outputs, we recommend that you use our
proprietary Teufel voltage converters to adapt
the high level signal coming from the speaker
outputs.
DC In
Connect the power supply for the transmitter
unit here to connect it to the mains power.
Setting up the wireless loudspeakers
The rear panel of the M 720 FR Wireless contains
the following controls:
16 Teufel · LT 7
Figure: M 720 FR Wireless rear panel(detail view)
On/Off switch
Use this mains power switch to completely power
down the column speakers. The batteries are dis-
connected from the electronics and retain their
charge (aside from an unavoidable long-term
low-level discharge). Before moving or transport-
ing the wireless speakers, ALWAYS set this switch
to the "Off " position to avoid damage to the
electronics.
Standby/On/Off button
Press this button to activate the loudspeakers;
press it again to deactivate them. You can also
press this button to resume normal operation
after you have triggered standby mode via the
"Standby" button on the transmitter unit.
Mains power socket
Plug in the supplied power cable here to
connect the speakers to the mains power and
charge up the built-in batteries. You can also run
the speakers permanently off the mains power
connection.
Fuses
If you need to replace any of the fuses, please
contact our technical support team first.
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