The Lfe Channel - Dynaudio AIR 15 Reference Manual

Appendix: Acoustics

The LFE Channel

LFE is an abbreviation for "Low Frequency Enhance-
ment" or "Low Frequency Effects". While the first is the
original name, the second is more correct with regards
to its main applications.
LFE is also referred to as the ".1 channel", which indi-
cates that the frequency range of this channel is only a
fraction of the other channels in a multi channel setup.
The actual frequency range is 20 Hz to 120 Hz. When
reproduced, the signal is gained by 10 dB compared
to the main channels. This provides a possibility of re-
producing occasional high-level low frequency contents
without affecting the general level setting of the main
channels.
Signals being sent to the LFE channel should always
be evaluated carefully, as not all transmission or re-
production systems may include this channel. In mu-
sic production and mixing, there is usually no need for
using this channel (unless you are recording the 1812
Overture with all these cannons shots...).
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