• The distance between the Roger NeckLoop and the room’s
existing amplifier system should be as short as possible.
• The power supply for the Roger NeckLoop and the power
supply for the amplifier can be fed from the same mains.
• Do not place the Roger NeckLoop in a metallic cabinet
(shielding effect could occur).
Placement
• Switch Off the amplifier and the Roger NeckLoop.
• Connect the Roger NeckLoop audio output with the
microphone input of the amplifier. Use
professional-grade audio cables.
• Switch On the amplifier and the Roger NeckLoop.
Connecting the wirings
The correct microphone gain setting is crucial to avoid
acoustical feedback.
• Reduce the input gain of the amplification system
• Position the microphone correctly and switch On
Roger NeckLoop
• Increase the Roger NeckLoop’s volume up to maximum
by pressing the volume button
• Increase the input gain of the amplification system
until acoustical feedback occurs
• Reduce the gain of the amplification system until
the feedback disappears
• Walk around the room and check that every position
is free of feedback
• Reset the Roger NeckLoop’s volume to the middle or
to the newly desired volume by pressing the volume button
Please note: the microphone gain of the classroom
amplification system cannot be accidentally changed.
The volume in the classroom will be set with the Roger
microphone.
Setting the microphone gain
Connection to amplification system
INPUT
INPU
T
3.5 mm Jack cable
-> XLR jack cable
Mic input = 3.5 mm jack
Mic input = 6.3 mm <-> ¼ inch jack
Mic input = XLR
3.5 mm <–> 6.3 mm Jack adapter
