SB18/ SB18 i /SB18 m SUBWOOFER
Contents
1. SP Connecting eight SB18 to one LA8 with the DOSUB LA8 Option A SB18 UM EN 2 0 WWW L AGOUSTICS COM SB18 SB 18i SB18m SUBWOOFER USER MANUAL VERSION 2 1 4 2 Connection to LA4 To cable the SBI8 subwoofers with the LA4 amplified controller two options are available Option A gt Connect an SP cable SP 7 SP5 SP10 or SP25 to the OUT I connector of the LAA and use the SP Y I cable to split the audio signals into two channels each one feeding one enclosure The CC4FP adaptor allows interfacing the SP and SP Y I cables Apply the same cabling scheme with the OUT 3 connector to connect two more enclosures Option B gt Use an SP cable SP 7 SP5 SP10 or SP25 to connect one similar enclosure to each of the four LA4 output channels A Maximum of 4 SBI8 per LA4 I SBI8 subwoofers can be connected to each output channel on the LA4 Therefore a single LA4 amplified controller can drive up to 4 SB 18 subwoofers b Subwoofer arrav in CARDIOID configuration The reversed sub must be connected to OUT I i Impedance load 8 Q for SBI8 O I TEC ma 1 FER ont e NO e 7 Sr i i FET II GO OO CC gs 5AAKN5 er i NO EX SANA O n c mes S ass Del el J a La e 3525350 0 EC DICI JQ OQO e e O gt 0 sis e IK Option B SP2. SP SP Connecting four SBI8 to one LA4 SB18 UM EN 2 1 WWW L AGOUSTICS COM APPENDIX A PRESET DESCRIPTION ES The latest version of each PRESET LIBRARY and the corresponding user manuals are downloadable from the L ACOUSTICS web site SBI8 60 and SBI8 1001 standard To use SB18 subwoofers in STANDARD mode as single elements or as an array in standard configuration sa co m Routine Accessible O and locked X parameters Inputs Outputs l _ IN Bo InputsignalB NB x o O O IN input signal A B channel A B SB subwoofer ISB18 60 C and SBI8 100 CJ cardioid To use SB18 subvvoofers in CARDIOID mode as an array in cardioid configuration LA4 or LA8 Elena nisi Routine Accessible O and blocked X parameters apar pus Input signal A IN A IN input signal A B channel A B SB subwoofer SR reversed subwoofer APPENDIX B RECOMMANDATIONS FOR SPEAKER CABLES Q Cable quality and resistance Only use high quality fully insulated speaker cables made of stranded copper wire Use cables 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 SB18 UM EN 2 0 WWW L ACDUSTI
3. SP 7 SP5 SP10 or SP25 to one of the SpeakON connectors of the LA8 and use the SP YI cable to split the audio signals into two channels each one feeding one subwoofer The CC4FP adaptor allows interfacing the SP and SP Y I cables Apply the same cabling scheme with the other LA8 SpeakON connector Option C gt Connect a DO cable DO 7 DOIO or DO25 to the PA COM connector of the LA8 and use the DO3WFILL to split the audio signals into one channel pair feeding one 2 way active enclosure and two single channels each one feeding one SB subwoofer This cabling scheme needs a dedicated custom preset One additional SB 8 can be connected in parallel with each of the first ones by using SP cables Maximum of 8 SB18 subwoofers per LA8 2 SB18 subwoofers in parallel can be connected to each output channel on the LAS LA8 may affect the acoustic results Refer to the LA8 PACOM CABLES technical bulletin Subwoofer array in CARDIOID configuration The reversed sub must be connected to OUT Impedance load 8 Q for SBI8 4 Q for 2 SB18 in parallel CE i PA COM standard Using cable other than specified in this document to connect a subwoofer via the PA COM connector of the ns KA PIO XOG Ae Boil SPK 4 OUT4 SPK 3 OUT3 DOSUB LA8 SPK 2 OUT SPK OUTI
4. instructions that must be strictly followed to ensure proper installation or operation of the product a INFORMATION This symbol notifies the user about complementarv information or optional instructions WELCOME TO L ACOUSTICS Thank you for choosing the L ACOUSTICS SB18 SB18i or SBI 8m subwoofer enclosure This document contains essential information on using the system properly Carefully read this document in order to become familiar with the system As part of a continuous evolution of techniques and standards L ACOUSTICS reserves the right to change the specifications of its products and the content of its documents without prior notice Please check the L ACOUSTICS web site on a regular basis to download latest updates for documents and software www l acoustics com SB18 UM EN 2 1 WWW L AGOUSTICS COM CONTENTS 2 2 1 2 2 2 3 2 4 SB18 SUBWOOFER SYSTEM COMPONENTS POWSEFINS ANd AfiVINgsystenm1 iaia Bojf al jofe1 d jer l l nt PRPS SET meN ai i e matat na SOMMA es fair ie ita ics temes A OPERATING MODES STANDARD MGde r mrmwvwwmvvvwwvvvwwvwwvwvvmvvwvvwwwvvvmwwvvvwvvmwwwvwvwvwwvvv CAR RDI OUD MOJE tii ise da a rasa i ia a aerea tari LOUDSPEAKER CONNECTION OS CNS oni to ILA ti esmenat re gig aile L ire dE Le ia ta a EE ERO AA APPENDIX A PRESET DESCRIPTION ISBI8 ISBI8 60 and Ps BIS 100 Andrea 60 CJ and ISBI8 100 0 RR AA APPENDIX B RECOMMANDATIONS FOR SPEAKER CAB
5. CS COM SB18 SB 18i SB18m SUBWOOFER USER MANUAL VERSION 2 1 SB18 UM EN 2 1 WWW L AGOUSTICS COM SB18 UM EN 2 0 WWW L ACOUSTICS COM Document reference SBI8 UM EN 2 I Distribution date September 7 2012 2012 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 WWW L ACOUSTICS COM
6. CUS WIDE All SB18 versions feature a pole mount socket for use with one XT two KIVA or one ARCS FOCUS WIDE SB18 UM EN 2 0 WWW L AGOUSTICS COM SB18 SB 18i SB18m SUBWOOFER USER MANUAL VERSION 2 1 2 SYSTEM COMPONENTS The system approach developed by L ACOUSTICS consists in offering a global solution that guarantee the highest and most predictable level of performance at any step of loudspeaker system deployment modeling installation and operation A complete L ACOUSTICS system includes enclosures amplified controllers cables rigging system and software applications The main components of an L ACOUSTICS system that includes the SB l 8 subwoofer are the following 2 1 Powering and driving system LA4 Amplified controller with DSP library and networking capabilities LA8 Amplified controller with DSP library and networking capabilities LA RAK Touring rack containing three LA8 for mains audio signals and network distribution Operating instructions Refer to the LA4 LA8 or LA RAK user manual 2 2 Loudspeaker cables DO cables DO 7 DOI0 DO25 8 point PA COM loudspeaker cables respective lengths of 0 7m 2 3ft Om 32 8ft and 25m 82ft DO3WFILL Breakout cable for one 2 way active enclosure and two passive enclosures PA COM lt 3 x SpeakON DOSUB LA8 Breakout cable for four passive enclosures PA COM lt 4 x SpeakON SP cables SP 7 SP5 SP10 SP25 4 point SpeakON loudspeaker cables respe
7. LES 1 SB18 SUBWOOFER The SBI8 subwoofer is a universal low frequency extension specifically recommended for KARA WST line source ARCS FOCUS WIDE WST line sources and the XT coaxial enclosures It allows extending the operating frequency range of the system down to 32Hz The association of a specifically designed 18 transducer with a dual bass reflex tuned enclosure provides exceptional impact and high sensitivity low thermal compression and reduced distortion A vent with a progressive profile allows laminar airflow and reduces turbulence noise even at the very highest operating levels These combined properties contribute to the sonic qualities of the SBI8 in terms of precision and musicality The SB 18 cabinet is made of first grade Baltic birch plywood to ensure maximum acoustical and mechanical integrity The SB 18 enclosure is driven and amplified by the LA4 or the LA8 controller These ensure linearization protection and optimization for the loudspeaker system in the different operating modes of the SB18 cardioid included SB 18 SB 18i SBI8m In this document the SBI8 term and illustration will refer equally to B18 SB18i or SBI8m These products are different versions of the same subwoofer and share the same operating modes presets and recommended configurations The rigging system of each version has been designed to be compatible with a distinct main system SB18 with KARA SB18i with KARAi and SBI8m with ARCS FO
8. SB18 SB18i 5B 18m SUBWOOFER ill USER MANUAL VERSION 2 1 WWW L ACOUSTICS COM SB18 SB 18i SB18m SUBWOOFER USER MANUAL VERSION 2 1 SAFETY INSTRUCTIONS I Readthis manual 2 Heedall SAFETY INSTRUCTIONS as well as DANGER and OBLIGATION warnings 3 Never incorporate equipment or accessories not approved by L ACOUSTICS 4 Read all the related PRODUCT INFORMATION documents before exploiting the system The product information document is included in the shipping carton of the related system component 5 Read the RIGGING MANUAL before installing the product Use the rigging elements described in the rigging manual and follow the associated procedures 6 Beware of sound levels Do not stay within close proximity of loudspeakers in operation and consider 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 This symbol indicates a potential risk of harm to an individual or damage to the product It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of the product OBLIGATION This symbol notifies the user about
9. ctive lengths of 0 7m 2 3ft 5m 16 4ft 10m 32 8ft and 25m 82ft SP VI Breakout cable for two passive enclosure SpeakON lt 2 x SpeakON i Information about the connection of the enclosures to the LA amplifiers is given in this document Refer to the LA4 LA8 or LA RAR user manual for detailed instructions about the vvhole cabling scheme including modulation cables and network 2 3 Rigging elements A Rigging elements or procedures are not presented in this document According to the version of the subwoofer and the system to set up refer to the applicable rigging manual 24 Software LA NETWORK MANAGER Remote control and monitoring of amplified controllers SOUNDVISION 3D acoustical and mechanical modeling software i Using L ACOUSTICS software Refer to the SOUNDVISION training and the LA NETWORK MANAGER tutorial SB18 UM EN 2 1 WWW L AGOUSTICS COM DO3WFILL SPIO DOSUB LA8 DO25 SP25 a Tal me e P l ka sma ma B l er a B IN ILI l L I B 2 4 E ES Lil o Soundvision LA Network Manager L ACOUSTICS system components compatible with the SB 18 subwoofer excluding main systems rigging elements and modulation cables SB18 UM EN 2 0 WWW L AGOUSTICS COM SB18 SB 18i SB18S8m SUBVVOCOFER USER MANUAL VERSION 2 1 3 OPERATING MODES 3 1 STANDARD mode In STANDARD mode a subw
10. ern Directivity pattern Horizontal symmetric Horizontal asymmetric Central rear rejection Increased rejection on the side of the reversed subvvoofer Delay settings When combining a line source with subvvoofers delays may have to be added to the presets Refer to the LA4 or LA8 PRESET LIBRARY user manual to obtain the pre alignment delay values Grouping subvvoofers Place the subwoofer enclosures side by side If not possible the maximum distance between two adjacent acoustic centers must be 2 8 m or 1 7 m whether the upper frequency limit of the subwoofer system is 60 Hz or 100 Hz respectively SB18 UM EN 2 1 WWW L AGOUSTICS COM 4 LOUDSPEAKER CONNECTION The SB18 subwoofer is equipped with two 4 point SpeakON connectors 3 SB18 The IN connector allows receiving the audio signal whereas the LINK connector allows routing it to another SB 18 enclosure in parallel Q s818 parallel connection is only possible with the LA8 amplified controller IN LINK CR e i Internal pinout for L ACOUSTICS subwoofers SpeakON points 2 Not used i 4 1 Connection to LA8 To cable SB18 with the LA8 three options are available Option A gt Connect a DO cable DO 7 DOI0 or DO25 to the PA COM connector of the LA8 and use the DOSUB LA8 to split the audio signals into four channels each one feeding one SB subwoofer of the same type Option B gt Connect an SP cable
11. oofer system operates with an omni directional directivity pattern lt corresponds to the use of SB subwoofers as single elements or as a standard subwoofer array The SBI8 subwoofers are driven either by the LA8 or the LA4 amplified controller with a choice of two different factory presets each one offering a distinct upper frequency limit in order to optimize the acoustic coupling between the subwoofer system and a main full range system SB 18 in standard configuration PRESET P SBI8 60 or ISB18 100 Single element Horizontal LF extension 10dB gig 7 Vertical 32 CARDIOID mode In CARDIOID mode a subwoofer system produces a rear SPL rejection lt corresponds to the use of an array of four SB enclosures with one reversed element i e turned towards the rear The SBI8 subwoofers are driven either by the LA8 or the LA4 amplified controller with a choice of two different factory presets each one offering a distinct upper frequency limit in order to optimize the acoustic coupling between the subwoofer system and a main full range system Both presets feature delay settings optimized for SB18 arrays in cardioid configuration SB I8 array in cardioid configuration PRESET gt SBI8 60 C or SB18_100_C LF extension 10dB IC __ Horizontal Vertical Directivity patt
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