L-ACOUSTICS LA 24 MANUAL Version 2.2
17/11/08 10
Connecting speakers
Speaker connections are made via the two
Neutrik
NL4
FC Speakon
connectors (1).
Speakons are wired in the following manner:
Channel A
Channel B
Pin +1
Channel A+
Channel B+
Pin
1
Channel A
Channel B
Pin +2
Channel B+
Pin
2
Channel B
Speakon Connector Pin Out Diagram
Never connect either output terminal to ground or to another output or input
terminal (see warning on page 2).
For normal two-channel operation, connect each speaker load across the output terminals
(positive and ground).
Pay attention to speaker polarity: loudspeakers connected out
of polarity degrade sound quality and may be damaged as a consequence.
Keep the speaker cable wires as short as possible and use good quality stranded speaker
cable. Do not use shielded wire, such as microphone or guitar cable. Remember that the
speaker cable robs the power of the amplifiers by increasing the load impedance and
introducing resistive power losses, so called I
2
R losses.
Load matching (MLS-switches)
Minimum Load Select (MLS) switches are located on the rear panel. The MLS switches
provide load matching capability so that you can drive the LA 24 into 2 ohms without
increased heat losses.
Please refer to Table 2 to determine the power delivered into a specific load for various MLS
switch settings.
As you can see from Table 2 the LA 24 can produce in excess of 1000 watts into any
impedance between 1.5 and 8 ohms. The fixed positions shown in Table 2 guarantee 1000
watts but higher powers can be achieved utilising higher
MLS
TM
positions when connected to
lower speaker impedances.
