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10.
CONSIDERATIONS
10.1. Ground loops
Always be careful not to interconnect grounds from the signal sources entering the
mixing console and from all devices connected to its outputs – ground must never
come from different devices, otherwise humming could occur and degrade the
sound quality.
The cable shields, if connected to the chassis, must never be connected to each
other. This prevents the formation of ground loops.
10.2. Background noise
The eCOMPACT4BT mixer has been designed to obtain the lowest possible
background noise. Regardless of the electronic design, the background noise will
directly depend on the correct use and installation of the unit.
Setting for example a channel FADER to "2" and the MAIN OUT VOL to "10" is not
the same as the opposite. In the first case, the signal entering the mixing amplifier is
weak, but even so it contains a background noise, so the signal/noise ratio is low
(low signal). When the output amplifier equally amplifies both parts as a whole, the
output has a very high background noise. In the second case, as the channel FADER
is set to maximum, the signal received by the mixing amplifier has a high level and
therefore also a high (good) signal/noise ratio, so when this signal reaches the
output VOL control and is amplified, the signal/noise ratio remains better than in
the previous case.
Summary of Contents for eCOMPACT4BT
Page 1: ...eCOMPACT4BT ANALOGUE PREAMPS AND MIXERS 4 channel Bluetooth mixer USER MANUAL ...
Page 8: ...6 FRONT PANEL ...
Page 10: ...7 BACK PANEL ...
Page 23: ...11 BLOCK DIAGRAM ...
