L-Acoustics ARCS II User Manual Download Page 13 | Manualshive

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ARCSII_UM_EN_3.0

w w w . l - a c o u s t i c s . c o m

13

Option B



Use an SP cable (SP5, SP10 or SP25) to connect one enclosure to each of the LA8 SpeakON

®

connectors.



Use SP cables to connect additional similar enclosures in parallel with the first ones.

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Summary of Contents for ARCS II

Page 1: ...ARCS II user manual EN ...

Page 2: ...o u s t i c s c o m 2 Document reference ARCS II_UM_EN_3 0 Distribution date April 11 2017 2017 L ACOUSTICS All rights reserved No part of this publication may be reproduced or transmitted in any form or by any means without the express written consent of the publisher ...

Page 3: ...ider wearing earplugs Loudspeaker systems are capable of producing very high sound pressure levels SPL which can instantaneously lead to permanent hearing damage to performers production crew and audience members Hearing damage can also occur with prolonged exposure to sound 8 h at 90 dB A 30 min at 110 dB A less than 4 min at 130 dB A SYMBOLS The following symbols are used in this document DANGER...

Page 4: ...ce Please check the L ACOUSTICS web site on a regular basis to download the latest document and software updates www l acoustics com CONTENTS 1 ARCS II SYSTEM 5 2 SYSTEM COMPONENTS 6 2 1 Loudspeaker enclosures 6 2 2 Powering and driving system 6 2 3 Loudspeaker cables 6 2 4 Rigging elements 6 2 5 Software applications 6 3 LOUDSPEAKER CONFIGURATIONS 8 3 1 Line source 8 3 2 Line source with low freq...

Page 5: ...metric distribution allowing the use of a horizontal ARCS II line source either for upward or downward coverage The ARCS II can be quickly deployed as a tightly packed front of house system for medium throw applications with high SPL LF impact and excellent stereo imaging Thanks to its precise and flexible coverage capability other applications include distributed system center cluster for theatri...

Page 6: ...ective lengths of 0 7 m 2 3 ft 10 m 32 8 ft and 25 m 82 ft DOFILL LA8 Breakout cable for two 2 way active enclosures PA COM 2 x 4 point SpeakON 4 mm section DO3WFILL Breakout cable for one 2 way active enclosure and two passive enclosures PA COM 3 x SpeakON 1 x 4 point and 2 x 2 point 4 mm section DOSUB LA8 Breakout cable for four passive enclosures 8 point PA COM to 4 2 point SpeakON 4 mm section...

Page 7: ... c o u s t i c s c o m 7 ARCS II SB28 LA RAK LA8 LA4X DO3WFILL DOSUB LA8 DO 7 DO10 DO25 DOFILL LA8 SPY1 SP7 SP5 SP10 SP25 Soundvision LA Network Manager ARCS II system components excluding rigging elements and modulation cables ...

Page 8: ...nclosure The ARCS II preset allows for a reference frequency response in medium throw applications The ARCS II enclosure can be driven by the LA4X or LA8 amplified controller Standalone ARCS II line source Horizontal array 40 up 20 down Flown horizontal array 40 down 20 up Flown vertical array 40 right 20 left Enclosure PRESET ARCS II ARCS II Frequency range 10 dB Directivity pattern 50 Hz 20 kHz ...

Page 9: ...mplified controller ARCS II line source SB28 Horizontal array 40 up 20 down stacked on SB28 Flown horizontal array 40 down 20 up with ground stacked SB28 Flown vertical array 40 right 20 left with ground stacked SB28 Enclosure PRESET Recommended ratios ARCS II ARCS II 1 SB28 2 ARCS II or 2 SB28 3 ARCS II SB28 SB28_60 Frequency range 10 dB Directivity pattern 25 Hz 20 kHz Asymmetrical 40 20 40 towa...

Page 10: ... for L ACOUSTICS 2 way active enclosures SpeakON points 1 1 2 2 Transducer connectors LF LF HF HF The ARCS II is bi amplified by the L ACOUSTICS LA4X or LA8 amplified controllers SB28 The SB28 is equipped with one 4 point SpeakON connector Internal pinout for L ACOUSTICS SB28 enclosures SpeakON points 1 1 2 2 Transducer connectors LF LF Not used Not used ...

Page 11: ...Connecting ARCS II to LA4X Maximum of 2 enclosures per LA4X 1 ARCS II can be connected to each pair of output channels on the LA4X 1 2 and 3 4 Impedance load 8 Ω Connect one SP cable SP 7 SP5 SP10 or SP25 to the OUT1 OUT2 and OUT3 OUT4 connectors of the LA4X ...

Page 12: ... be connected to each pair of output channels on the LA8 1 2 and 3 4 Impedance load 1 enclosure 8 Ω 2 enclosures 4 Ω Option A Connect a DO cable DO 7 DO10 or DO25 to the LA8 PA COM connector Use a DOFILL LA8 to split the signal into two channel pairs each one feeding one enclosure Use SP cables to connect additional similar enclosures in parallel with the first ones ...

Page 13: ...w l a c o u s t i c s c o m 13 Option B Use an SP cable SP5 SP10 or SP25 to connect one enclosure to each of the LA8 SpeakON connectors Use SP cables to connect additional similar enclosures in parallel with the first ones ...

Page 14: ...O 7 DO10 or DO25 to the LA8 PA COM connector Use a DO3WFILL to split the signal into one channel pair 2WAY and two single channels SUB1 and SUB2 Connect the 2WAY connector to the IN connector of the active enclosure Connect the SUB1 and SUB2 connectors to the IN connector of the subwoofers Use SP cables to connect additional ARCS II in parallel with the first ones ...

Page 15: ...n be connected to each output channel on the LA8 CARDIOID configuration with SB28 Connect the reversed subwoofer to OUT 1 Impedance load 1 enclosure 4 Ω Option A Connect a DO DO 7 DO10 or DO25 cable to the LA8 PA COM connector Use the DOSUB LA8 to split the audio signals into four channels each one feeding one subwoofer ...

Page 16: ...N_3 0 w w w l a c o u s t i c s c o m 16 Option B Connect an SP cable SP 7 SP5 SP10 or SP25 to each of the SpeakON connectors of the LA8 Use an SP Y1 cable and a CC4FP adapter to split the audio signals into two channels each one feeding one subwoofer ...

Page 17: ...ing with the ARCS II line source Loudspeaker elements Amplifier outputs Channels Default parameters Routing Gain Delay Polarity Mute SB28 OUT 1 SB IN A 0 dB 0 ms ON SB28 OUT 2 SB IN A 0 dB 0 ms ON SB28 OUT 3 SB IN B 0 dB 0 ms ON SB28 OUT 4 SB IN B 0 dB 0 ms ON SB28_60_C The SB28_60_C preset provides the SB28 enclosures with an upper frequency limit at 60 Hz for an optimal frequency coupling with t...

Page 18: ...es of gauge offering low resistance per unit length and keep the cables as short as possible The following table provides the recommended maximum length depending on the cable cross section and on the impedance load connected to the amplifier Recommended maximum length Cable cross section 8 Ω load 4 Ω load 2 7 Ω load mm2 SWG AWG m ft m ft m ft 2 5 15 13 30 100 15 50 10 33 4 13 11 50 160 25 80 17 5...

Page 19: ...ression driver DOSC waveguide Nominal impedance LF 8 Ω HF 8 Ω RMS power handling LF 600 W HF 100 W Connectors IN 1 4 point SpeakON LINK 1 4 point SpeakON Rigging components Captive coupling bars Dimensions Physical data Weight net 50 kg 110 lb Cabinet Baltic birch plywood Finish Dark Grey brown Pantone 426C Pure white RAL 9010 Front Steel grill with anti corrosion coating Airnet fabric Protection ...

Page 20: ...iation bass reflex Nominal impedance 4 Ω Connectors IN 1 4 point SpeakON Rigging components Integrated rigging system Handles integrated in the cabinet Dimensions Physical data Weight net 93 kg 205 lb Cabinet Baltic birch plywood Finish Dark Grey brown Pantone 426C Pure white RAL 9010 Front Steel grill with anti corrosion coating Airnet acoustically neutral fabric Rigging components Aluminium 1 Pe...

Page 21: ...fo l acoustics com www l acoustics com L Acoustics GmbH Steiermärker Str 3 5 70469 Stuttgart Germany 49 7 11 89660 323 L Acoustics Ltd PO Box Adler Shine Aston House Cornwall Avenue London N3 1LF United Kingdom 44 7224 11 234 L Acoustics Inc 2645 Townsgate Road Suite 600 Westlake Village CA 91361 USA 1 805 604 0577 ...

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