SB18 / SB18i / SB18m SUBWOOFER user manual
Contents
1. SB18 SB18i SB18 SUBWOOFER USER MANUAL VERSION 2 2 WWW L ACOUSTICS CGCOM SB18 SB18i SB18m SUBWOOFER USER MANUAL VERSION 2 2 SAFETY INSTRUCTIONS Read this manual 2 Follow all 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 system Use the rigging accessories 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 i DANGER d 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 ELECTRICAL HAZARD This symbol indicat2. PRESET GUIDE to obtain the pre alignment delay values Distance between enclosures Place the subwoofer enclosures side by side If not possible the maximum distance between two adjacent acoustic centers must be 1 7 m with SBI8 100 C 2 80 m for SBI8 60 C NOMPRODUIT UM 0 1 WWW L ACOUSTIC S COM 8 3 LOUDSPEAKER CONNECTION 3 1 Connectors IN The SBI8 subwoofer is equipped with two 4 point SpeakON connectors The IN connector allows receiving the audio signal and the LINK connector allows routing it to another SB18 enclosure in parallel CD The SBI8 connection in parallel is only possible with the LA8 amplified controller i Internal pinout for L ACOUSTICS subwoofers enclosures SpeakON points e IDEA NOMPRODUIT UM 0 1 WWW L ACOUSTIC S COM 9 SB18 SB18i SB18m SUBWOOFER USER MANUAL VERSION 2 2 3 2 Connection to LA4 LA4X A Maximum of 4 enclosures per LA4 LA4X SBI8 can be connected to each output channel on the LA4 Therefore a single LA4 amplified controller can drive up to 4 enclosures Cardioid configuration Connect the reversed subwoofer to OUT to use the cardioid preset i Impedance load 8 Q for SB1I8 To connect the SB18 to the LA4 LA4X 2 options are available Option A gt Use SP cables SP 7 SP5 SP10 or SP25 to connect one enclosure to each of the four LA4 LA4X output channels Option B gt Connect an SP cable SP 7 SP5 SPIO or
3. SP25 to the OUTI OUT2 and OUT3 OUT4 connectors of the LA4 LA4X gt Use a CC4FP adapter to connect an SP YI cable and separate the two output channels gt Apply the same cabling scheme for the OUT3 OUT4 connector S S SP YI SP YI CC4FP SP SP CC4FP NOMPRODUIT UM 0 1 WWW L ACOUSTICS COM 10 3 3 Connection to LAS Maximum of 8 enclosures per LA8 2 SBI8 can be connected in parallel to each output channel on the LA8 Therefore a single LA8 amplified controller can drive up to 8 enclosures Cardioid configuration Connect the reversed subwoofers to OUT to use the cardioid preset Impedance load 8 Q for enclosure 4 Q for 2 enclosures To connect the SBI8 to the LA8 2 options are available Option A gt Connect a DO cable DO 7 DOIO or DO25 to the LA8 PA COM connector gt Use the DOSUB LAS to separate the four output channels gt If necessary use SP cables to connect additional SB I8 enclosures in parallel with the first ones DOSUB LAB SPKI OUTI SPK2 OUT2 SPK3 OUT3 SPK4 OUT4 NOMPRODUIT_UM_O 1 WWW L AGOUSTIGS GCOM SB18 SB18i SB18m SUBWOOFER USER MANUAL VERSION 2 2 Option B i With various enclosure types connected to the same amplifier this cabling scheme needs a custom preset gt Connect an SP cable SP 7 SP5 SP10 or SP25 to the OUTI OUT2 and OUT3 OUT4 LA8 SpeakON connectors gt Use a CC4FP adapter to connect an SP YI cable and separate the t
4. 8 60 or SB18 100 LF extension 10 dB 32 Hz Directivity pattern Omni directional Vertical Delay settings When combining a line source with subwoofers delays may have to be added to the presets Refer to the PRESET GUIDE to obtain the pre alignment delay values Distance between enclosures Place the subwoofer enclosures side by side If not possible the maximum distance between two adjacent acoustic centers must be 1 7 m with SBI8 100 2 80 m for SBI8 60 NOMPRODUIT UM 0 1 WWW L ACOUSTIC S COM SB18 SB18i SB18m SUBWOOFER USER MANUAL VERSION 2 2 2 2 Cardioid configuration The cardioid configuration corresponds to the use of subwoofers as cardioid subwoofer arrays In this configuration the system produces a rear SPL rejection The SB18 60 C preset features a 60 Hz upper frequency limit The SBI8_ 100 C preset features a 100 Hz upper frequency limit They both feature delay settings optimized for cardioid SB18 arrays The SBI8 subwoofers are driven by the LA4 LA4X or LA8 amplified controllers SB18 in cardioid configuration Directivity pattern Directivity pattern Horizontal symmetric Horizontal asymmetric Central rear rejection Rear rejection on the side of the reversed subwoofer PRESET gt SB18 60 C or SB18 100 C LF extension 10 dB 32 Hz Vertical Delay settings When combining a line source with subwoofers delays may have to be added to the presets Refer to the
5. A E ETE E E EE E EEE 5 2 LOUDSPEAKER CONFIGURATIONS 7 2 1 Sandara GOIN UIE AON OUN oe eet secede anarai cece Ea dee au ccc EEE au ceu oe waq tute ea muutud t eu END tected Ka cence 7 2E A Sel gel el ok soln lit a Meee ence ene reenter errr een ne ne E E ne Sone E tee ene tne ee eT ee eres 8 3 LOUDSPEAKER CONNECTION 9 3 1 COHN ENGE a A A A AES A AE E a aaa aasa aaa l ti in aiamaa 9 22 SOUL AT AAA ama ama hmm tall Sere eee 10 3 3 Senee ni seg al maa maa ama a aaa N AET aaa t E APPENDIX A PRESET DESCRIPTION 13 5516 6010 BIS TOO aanus um seas 13 15516 60 or 5616100 A Donii A E A E E lamm 13 APPENDIX B RECOMMANDATION FOR SPEAKER CABLES 13 APPENDIX C SPECIFICATIONS 14 NOMPRODUIT UM 0 1 WWW L ACOUSTIC S COM 3 SB18 SB18i SB18m SUBWOOFER USER MANUAL VERSION 2 2 SB18 SUBWOOFER ENCLOSURE The SB18 is the recommended subwoofer for modular WST line sources and coaxial enclosures It allows extending the operating frequency range of the system down to 32Hz The SBI8 features one 18 neodymium speaker in a dual bass reflex tuned enclosure It provides impact sensitivity low thermal compression and reduced distortion One of the vents features a progressive profile allowing laminar airflow and reduced turbulence noise even at the highest operating levels These combined properties contribute to the sonic qualities of the SBI8 in terms of precision and musicality The cabinet is made of first grade Baltic birch plywood to ensure maximum acoust
6. AK user manuals for detailed instructions about the whole cabling scheme including modulation cables and network 1 4 Rigging element 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 1 5 Software application SOUNDVISION Proprietary acoustical and mechanical 3D modeling software LA NETWORK MANAGER Remote control and monitoring of amplified controllers i Using L ACOUSTICS software Refer to the SOUNDVISION user manual and the LA NETWORK MANAGER tutorial NOMPRODUIT UM 0 1 WWW L ACOUSTIC S COM 5 SB18 SB18i SB18m SUBWOOFER USER MANUAL VERSION 2 2 SB18 SPY DO 7 BSS i DOIO SP5 DO3WFILL DO25 SP25 Soundvision LA Network Manager SBI8 system components excluding rigging elements and modulation cables NOMPRODUIT_UM_O 1 WWW L ACOUSTIC S COM 6 2 LOUDSPEAKER CONFIGURATIONS 2 1 Standard configuration The standard configuration corresponds to the use of subwoofers as single elements or as standard subwoofer arrays In this configuration the system operates with an omni directional directivity pattern The SB18 60 preset offers a 60 Hz upper frequency limit The SB18 100 preset offers a 100 Hz upper frequency limit The SBI8 subwoofers are driven by the LA4 LA4X or LA8 amplified controllers SB18 in standard configuration PRESET gt SB1
7. enclosure SBI8 Subwoofer enclosure down to 32 Hz i Loudspeaker system design Sound design aspects are beyond the scope of this document However the various applications of the system will be based on the loudspeaker configurations presented in this document 1 2 Powering and driving system LA4 Amplified controller with DSP preset library and networking capabilities LA4X LA8 LA RAK Touring rack containing three LA8 for mains audio signals and network distribution i Operating instructions Refer to the LA4 LA4X LA8 or LA RAK user manual 1 3 Loudspeaker cables DO cables 8 point PA COM loudspeaker cables 4 mm section DO 7 DO10 DO25 Respective lengths of 0 7 m 2 3 ft 10 m 32 8 ft and 25 m 82 ft DOSUB LA8 Breakout cable for four passive enclosures 8 point PA COM to 4 x 2 point SpeakON 4 mm section DO3WFILL Breakout cable for one 2 way active enclosure and two passive enclosures 8 point PA COM to 2 x 2 point SpeakON and x 4 point SpeakON 4 mm section SP cables 4 point SpeakON loudspeaker cables 4 mm section SP 7 SP5 SP10 SP25 Respective lengths of 0 7 m 2 3 ft 5 m 16 4 ft 10 m 32 8 ft and 25 m 82 ft SP Y Breakout cable for two passive enclosures 4 point SpeakON to 2 x 2 point SpeakON 2 5 mm section Provided with CC4FP adapter i Information about the connection of the enclosures to the LA amplifiers is given in this document Refer to the LA4 LA4X LA8 and LA R
8. es a potential risk of electrical injury 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 instructions that must be strictly followed to ensure proper installation or operation of the product i INFORMATION This symbol notifies the user about complementary information or optional instructions NOMPRODUIT UM 0 1 WWW L ACOUSTIC S COM 2 WELCOME TO L AcoUSTICS Thank you for choosing the L ACOUSTICS SBI8 system 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 document without prior notice Please check the L ACOUSTICS web site on a regular basis to download the latest document and software updates www l acoustics com CONTENTS SBI8 SUBWOOFER ENCLOSURE 4 I SYSTEM COMPONENTS 5 1 1 L dsp aker enclosure ice actors seston stirs asipsecionssinnswaca ston sau sionationasinas dowsinns tec acta seed sione dace a t 5 1 2 LOW HMS anadir VANS SY SUN alana alea anal ssa N E EE A EE EE 5 1 3 Lode peak rE aDeSe nnn E E E a meer AE A 5 1 4 Nude aaa a IIa rd ee Cr ere er tee eT err eee te eee ee 5 1 5 Seli gok lsjo ousia P EE T E E E E A E
9. ical and mechanical integrity A 4 point rigging system is integrated into the cabinet and allows SB18 subwoofers to be flown or ground stacked as a standalone array or within a vertical SBI8 KARA array The cabinet also features a pole mount socket for one XT or two KIVA enclosures The SBI8 is driven and amplified by the LA4X or the LA8 controller These ones ensure linearization protection and optimization for the loudspeaker system in its different configurations cardioid included i SB18 SBI 8i SBI8m In this document the SB I8 term and illustration will refer equally to SB 18 SBI8i 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 SB I8i with KARAi and SBI8m with ARCS FOCUS WIDE All SB18 versions feature a pole mount socket for use with one XT two KIVA or one ARCS FOCUS WIDE NOMPRODUIT UM 0 1 WWW L ACOUSTIC S COM A 1 SYSTEM COMPONENTS The system approach developed by L ACOUSTICS consists in offering a global solution that guarantees 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 I 1 Loudspeaker
10. ier Recommended maximum length we awe m n 5 NOMPRODUIT UM 0 1 WWW L AGOUSTIGS GOM 13 SB18 SB18i SB18m SUBWOOFER USER MANUAL VERSION 2 2 APPENDIX G SPECIFICATIONS NY BI x 18 weather resistant direct radiation dual bass reflex Integrated pole mount socket Rigging components Integrated rigging system Handles integrated into the cabinet oo 750mm 29 5 in 553mm 21 8 in 540mm 21 3 in Dimensions 707mm 27 8 in 723mm 28 5 in Weight net 52 kg 115 Ib 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 Physical data Protection rating IP45 Rigging components Steel with anti corrosion coating Peak level at m under half space conditions using 10 dB crest factor pink noise with specified preset NOMPRODUIT UM 0 1 WWW L AGOUSTIGS GOM 14 SBIBi Subwoofer enclosure amplified by LA4X or LA8 for permanent install 32 Hz SB18 100 preset 136 dB SB18 100 preset mow x 18 weather resistant direct radiation dual bass reflex IN x 4 point SpeakON LINK x 4 point SpeakON Integrated pole mount socket Rigging components Integrated rigging system Handles integrated into the cabinet 713mm 28 1 543mm 21 4 538mm 21 2 Dimensions Weight net 52 kg 115 Ibs Cabinet Baltic birch pl
11. 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 CGCOM
12. wo output channels gt If necessary use SP cables to connect additional similar enclosures in parallel with the first ones SP YI SP YI CC4FP CC4FP 12 NOMPRODuUIT UM 0 1 WWW L AGOUSTIGS GCOM APPENDIX A PRESET DESCRIPTION SB18 60 or SB18 100 The SB18 60 preset provides the subwoofer enclosures with an upper frequency limit at 60 Hz The SB18 100 preset provides the subwoofer enclosures with an upper frequency limit at 100 Hz It is used for SB 18 subwoofers deployed as single elements or arrays in standard configuration Default parameters Loudspeaker elements Amplifier outputs Channels E Routing SBI8 60 C or SBI8_100 C The SBI8 60 C preset provides the subwoofer enclosures with an upper frequency limit at 60 Hz The SBI8 100 C preset provides the subwoofer enclosures with an upper frequency limit at 100 Hz They both feature optimized delay settings for subwoofers deployed arrays in cardioid configuration Default parameters Loudspeaker elements Amplifier outputs Channels ETA Routing APPENDIX B RECOMMANDATION FOR SPEAKER GABLES 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 amplif
13. ywood Finish Dark Grey brown Pantone 426C Pure white RAL 9010 Custom RAL code on special order Physical data Steel grill with anti corrosion coating Front Airnet acoustically neutral fabric Protection rating IP45 Rigging components Steel with anti corrosion coating Peak level at m under half space conditions using 10 dB crest factor pink noise with specified preset NOMPRODUIT UM 0 1 WWW L AGOUSTIGS GOM 15 SB18 SB18i SB18m SUBWOOFER Description Low frequency limit 10 dB RMS power handling Transducers Nominal impedance Connectors IN x 4 point SpeakON LINK x 4 point SpeakON Integrated pole mount socket Rigging components Captive coupling bars Handles integrated into the cabinet 759 mm 29 9 in N O O Dimensions 717 mm 28 2 in 543 mm 21 4 in Weight net 62 kg 137 Ib Cabinet Baltic birch plywood Finish Dark Grey brown Pantone 426C Pure white RAL 9010 Custom RAL code on special order Physical data Steel grill with anti corrosion coating Front Airnet acoustically neutral fabric Rigging components Steel with anti corrosion coating Peak level at m under half space conditions using 10 dB crest factor pink noise with specified preset NOMPRODUIT UM 0 1 WWW L ACGCOUSTICS COM 16 Document reference SBI8 UM 2 2 Distribution date January 7 2014 2013 L ACOUSTICS All
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