Sennheiser HE 1 - Connecting to External Audio Systems; Using as a Preamplifier

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Putting the HE 1 into operation | Connecting the headphone tube amplier to a power amplier or to active loudspeakers
Connecting the headphone tube amplifier to a power
amplifier or to active loudspeakers
You can use the tube headphone amplier as a preamplier and connect it to a
power amplier or to active loudspeakers. To switch the audio output from the
headphones to the audio outputs, set the OUTPUT rotary switch to LINE.
▷ Switch your audio devices off before connecting the tube headphone
amplier.
▷ Select a suitable high-quality connection cable for your audio device. Please
observe the recommended maximum cable length as given in the table.
▷ To connect the tube headphone amplier to your audio source, refer to the
connection diagram suitable for your your audio source (see the following
chapters):
Connection possibility of the
audio device:
Connection cable Max. cable
length
Page
ANALOG
A
XLR-3 (BAL)
2 balanced XLR-3
cables
10 m
25
B
RCA (UNBAL)
Stereo audio cable with
2 RCA connectors at
each end
5 m
25