JBL LSR4326P - Manual (Page 28)

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To route an incoming AES/EBU two-channel signal to another speaker, use an cable with XLR
plugs on both ends to connect the AES/EBU OUT of the first speaker to the AES/EBU IN of
the second speaker.
To route an incoming S/PDIF two-channel signal to another speaker, use a cable with phono
plugs on both ends to connect the S/PDIF OUT of the first speaker to the S/PDIF IN of the
second speaker.
For best results when using digital inputs, always use high-quality cable designed for use with
digital equipment. We recommend the use of 110 ohm cabling for AES/EBU connections and
75 ohm cabling for S/PDIF connections.
LSR4300 audio interconnections
RMC™ Room Mode Correction
When a loudspeaker is placed in any work space, it and the room behave as a system which,
for better or worse, acts as the reference point for creative decisions. When a room has
inadequate or incorrect acoustic treatment, “room modes” (sometimes called “standing
waves”) can result, producing low frequency resonances that give a misleading impression of
bass response and therefore make it difficult to achieve a proper mix balance.
The LSR4300 utilizes a revolutionary technology called RMC™ (short for “Room Mode
Correction”) that is designed to correct the problem. RMC analyzes the frequency response of
Reference - Audio Connections/RMC™
Room Mode Correction