L-Acoustics ARCS User Manual

L-ACOUSTICS ARCS Manual V2.0 2/13/2003 16
From Table 2 below it is seen that the L-ACOUSTICS LA24a is suitable powering up to 2 ARCS in
parallel while the L-ACOUSTICS LA48a can be used for powering 3 ARCS in parallel. Alternatively, for
operating 3 ARCS in parallel, the LA24a can be used to power the HI section while the LA48a is used
for the LOW section.
Note: For more secure HF section operation, MLS switches should be set as follows in order to provide a
better power match for the ARCS HF section:
LA24a ARCS HI Section: MLS = -2 dB
LA48a ARCS HI Section: MLS = -5 dB
Table 2a: Recommended Power Amplification and MLS switch settings for ARCS low section
ARCS LOW SECTION AMPLIFIER OUTPUT POWER
REC'D POWER (MLS SETTING)
LOAD REC'D LA 24a LA 48a
(ohms) POWER
2 3000 1700 2900
do not use (0 dB)
2.7 2250 1635
2700
do not use
(0 dB)
4 1500
1500 1600
(0 dB) (-2 dB)
8 750
1100 820
(0 dB) (-2 dB)
Table 2b: Recommended Power Amplification and MLS switch settings for ARCS high section
ARCS HI SECTION AMPLIFIER OUTPUT POWER
REC'D POWER (MLS SETTING)
LOAD REC'D LA 17a LA 24a LA 48a
(ohms) POWER
2 1600 1200
1550 1660
do not use
(-2 dB) (-5 dB)
2.7 1200 1080
1465 1380
do not use
(-2 dB) (-5 dB)
4800
840 1300 830
(0 dB) (-2 dB) (-5 dB)
8400
430 400 430
(0 dB) (-4 dB) (-5 dB)

L-Acoustics ARCS Specifications

General

Brand	L-Acoustics
Model	ARCS
Category	Speakers
Language	English