Yamaha HTR-5835 Owner's Manual page 13

K 96/24 indicator
Lights up when a DTS 96/24 signal is input to this unit.
L LFE indicator
Lights up when the input signal contains the LFE signal.
M Input channel indicators/speaker indicators
Indicate the channel components of the cun'ent digital
input signal.
Indicate the number of speakers connected in SPEAKERS
(page 22), or indicate the channel being adjusted in
SP LEVEL (page 55).
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