Troubleshooting - PRESONUS Eris Series Owner's Manual

4 Resources
4.2

Troubleshooting

4.2 Troubleshooting
No power. First ensure that your active Eris speaker is plugged in. If it's connected to
a power conditioner, verify that the power conditioner is turned on and functioning.
No audio. If your active Eris speaker appears to power on but you hear
no sound when playing audio from your audio source (the lights are on
but nobody's home), first make sure that the cable connecting your audio
source to the active speaker is working correctly. Also, verify that the volume
control is set to provide enough amplitude for the signal. If only the passive
Eris speaker is not passing audio, check your speaker-wire connections
and verify that the bare wire is fully inserted into each connection.
Hum. Usually, hum is caused by a ground loop. Verify that all
audio equipment is connected to the same power source.
Sound is thin. If the sound of the speakers seems thin and brittle, check
that your speaker wires are connected correctly (i.e., the positive/red
connection on the active Eris speaker is connected to the positive/red
connection on the passive Eris speaker and the negative/black connection
on each is connected to the negative/black connection on the other).
Eris®-series E3.5/E3.5 BT/E4.5/ E4.5 BT
Owner's Manual
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