L-Acoustics KIVA SB18 User Manual Download Page 28

Page: 28 / 28

Document reference: SB18_UM_ML_1-0

Distribution date: October 21

, 2010

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.

Summary of Contents for KIVA SB18

Page 1: ...ct high power subwoofer compact high power subwoofer compact high power subwoofer compact high power subwoofer USER MANUAL USER MANUAL USER MANUAL USER MANUAL VERSION 1 VERSION 1 VERSION 1 VERSION 1 0 0 0 0 www l acoustics com ...

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Page 3: ... Levels Sound systems are capable of producing high Sound Pressure Levels which can be dangerous and potentially cause hearing damage especially when exposed to them over a long period of time Do not stay within close proximity of the loudspeakers when operating 6 Heat Do not operate the product near any heat source such as radiators or other devices 7 Water and moisture Even if the product is wea...

Page 4: ...ny way such as The product has been exposed to rain or moisture The product was dropped or the enclosure is damaged The product does not operate normally 11 Manual Keep this manual in a safe place during the product lifetime This manual forms an integral part of the product Reselling of the product is only possible if the user manual is available Any changes made to the product have to be document...

Page 5: ...2 7 1 System configuration 12 7 2 STANDARD mode 12 7 2 1 Description 12 7 2 2 Connecting the SB18 to the LA4 or LA8 13 7 2 3 SB18_60 and SB18_100 presets 14 7 3 CARDIOID mode 15 7 3 1 Description 15 7 3 2 Connecting the SB18 to the LA4 or LA8 16 7 3 3 SB18_60_C and SB18_100_C presets 17 8 CARE AND MAINTENANCE 18 8 1 Maintenance information 18 8 2 Testing procedure 18 8 2 1 Acoustical check 18 8 2 ...

Page 6: ...COUSTICS product is tested and inspected before leaving the factory and should arrive in perfect condition If found to be damaged notify the shipping company or the distributor immediately Only the consignee may initiate a claim with the carrier for damage incurred during shipping Be sure to save the carton and packing materials for the carrier s inspection 3 4 Web links Please check the L ACOUSTI...

Page 7: ... standard L ACOUSTICS accessories These accessories include the L ACOUSTICS SP 7 SP10 and SP25 Loudspeaker cables with respective lengths of 0 7 m 2 3 ft 10 m 32 8 ft and 25 m 82 ft These cables allow connection of the SB18 enclosure to the LA4 amplified controller Each cable is a 4 conductor cable with 4 mm2 conductor cross section 13 SWG 11 AWG and features 4 point SpeakON connectors The combina...

Page 8: ...COMPACT HIGH POWER SUBWOOFER USER MANUAL USER MANUAL USER MANUAL USER MANUAL VERSION 1 0 SB18_UM_ML_1 0 w w w l a c o u s t i c s c o m 6 6 6 6 en Figure 1 Components associated with the SB18 subwoofer part 1 Four SB18 enclosures M BUMP M JACK SB18COV SB18PLA M BAR LA NETWORK MANAGER LA RAK SOUNDVISION LA4 LA8 ...

Page 9: ...UM_ML_1 0 w w w l a c o u s t i c s c o m 7 7 7 7 en EN Figure 2 Components associated with the SB18 subwoofer part 2 115XT HiQ ARCS KIVA 8XT 12XT KILO KARA SB18 DO25 DO10 SP25 SP10 SP 7 DOSUB LA8 DO 7 KUDO ...

Page 10: ...ciation of a specifically designed 18 transducer with a dual bass reflex tuned enclosure provides exceptional impact and high sensitivity low thermal power compression and reduced distortion The vents feature a progressive profile allowing laminar airflow and reduced turbulence noise even at the very highest operating levels These combined properties contribute to the sonic qualities of the SB18 i...

Page 11: ...ures using the built in 35 mm 1 4 inch pole mount socket to easily create a compact FOH system Refer to the SB18 Rigging manual 3 4 to get acquainted with the SB18 system specific rigging procedures and mechanical limits 6 3 SB18 connection The SB18 subwoofer can be driven and powered by both dedicated L ACOUSTICS LA4 and LA8 amplified controllers The LA4 can drive up to four SB18 enclosures one p...

Page 12: ...AL VERSION 1 0 SB18_UM_ML_1 0 w w w l a c o u s t i c s c o m 10 10 10 10 en The L ACOUSTICS wiring convention is as follows SpeakON connector labels Connections to transducer 1 IN 1 IN 2 Not used 2 Not used Figure 4 Connecting one SB18 to an LA4 amplified controller Figure 5 Connecting two SB18 in parallel to an LA8 amplified controller SP 7 DOSUB LA8 DO 7 DO10 or DO25 SP10 or SP25 ...

Page 13: ...commended cable length versus conductor cross section Two cases are possible depending on the impedance load connected to the LA4 or LA8 8 Ω for a single SB18 enclosure 4 Ω for two SB18 enclosures in parallel Table 2 Maximum cable length versus conductor cross section for Damping Factor 20 Cross section Length for 1 SB18 8 Ω load Length for 2 SB18 4 Ω load mm2 SWG AWG m ft m ft 2 5 15 13 30 100 15...

Page 14: ...IBRARIES are downloadable from the L ACOUSTICS web site 3 4 7 2 STANDARD mode 7 2 1 Description The STANDARD mode consists in arraying all SB18 subwoofers with front grills facing the audience so as to obtain an omni directional coverage pattern The associated standard presets are available in both LA4 and LA8 PRESET LIBRARIES The basic arrays contain four enclosures Several basic arrays can then ...

Page 15: ...controller can drive up to eight SB18 enclosures Figure 9 Note The system resources are optimized for a multiple of four SB18 enclosures Figure 7 Four SB18 connected to an LA4 stereo configuration Figure 8 Four SB18 connected to an LA4 mono configuration VERTICAL ON END BLOCK HORIZONTAL IN A OUT 1 IN A OUT 2 IN A OUT 3 IN A OUT 4 IN A Note All output channels have been routed to IN A by using the ...

Page 16: ...OAD PRESET menu from the LA4 or LA8 amplified controller front panel and then select the desired preset Refer to the LA4 or LA8 User manual 3 4 for additional instructions The presets are also accessible using LA NETWORK MANAGER Software refer to the LA NETWORK MANAGER User manual 3 4 The following table shows the accessible parameters in STANDARD mode Table 3 Accessible parameters in STANDARD mod...

Page 17: ... on end and horizontal arrays see also Figure 10 All arrays provide rear rejection The vertical array provides symmetric coverage pattern in the horizontal plane The block on end and horizontal arrays provide asymmetric coverage pattern in the horizontal plane by generating additional rejection to the side of the reversed subwoofer If two or more basic arrays are intended to be used in close proxi...

Page 18: ...rouped in pair with each first one so as to build a second basic cardioid array Therefore a single LA4 amplified controller can drive up to one basic cardioid array Figure 11 and a single LA8 amplified controller can drive up to two basic cardioid arrays Figure 12 To achieve a cardioid coverage pattern ALWAYS check that the reversed SB18 is connected to the OUT 1 output channel Figure 11 One basic...

Page 19: ...plified controller front panel and then select the desired preset Refer to the LA4 or LA8 User manual 3 4 for additional instructions The presets are also accessible using LA NETWORK MANAGER Software refer to the LA NETWORK MANAGER User manual 3 4 The following table shows the accessible parameters in CARDIOID mode Table 4 Accessible parameters in CARDIOID mode Accessible O and blocked X parameter...

Page 20: ...he active input of the amplified controller Apply a sweep from 32 to 100 Hz with a maximum voltage of 0 5 volts 4 dBu 6 dBV the sound should remain pure and free of unwanted noise 0 5 volts is a maximum value that can generate very high sound levels at given frequencies Use ear protection to set the sound level before testing In case of acoustical trouble apply the Mechanical check 8 2 2 to verify...

Page 21: ...r apply Figure 13 SB18 exploded view Table 5 Replacement kits and utilities Reference Description Service procedure KR SB18GR Complete front face replacement kit 8 3 2 KR SB18PRO Protective edges and handles replacement kit 8 3 3 KR MCEMB3 Pole mount socket replacement kit 8 3 4 KR HPBC182 Transducer replacement kit 8 3 5 KR CNTXTI Connector plate replacement kit 8 3 6 KR PIN601 Set of ten 5 16 T ...

Page 22: ...edge removal procedure x4 1 Remove the 5 Torx screws T30 bit from the protective edge 2 Remove the protective edge Protective edge mounting procedure x4 1 Install the protective edge with stacking base oriented towards the bottom of the enclosure 2 Screw in two 35 mm flat head Torx screws to the extremities of the protective element located on the top and bottom faces of the enclosure thread locke...

Page 23: ...ress the spring loaded tab slide the cable in and release the tab 3 Install the transducer in the enclosure pay attention no to bend the terminals and screw in eight 30 mm hex screws with split and flat washers 5 mm hex bit 5 N m 45 in lbf into each hex screw insert a split washer and then a flat washer follow this sequence and screw in the assembly 4 Put joint around the bass reflex panel locatio...

Page 24: ...g 115 lbs Vertical array rigging 2 L ACOUSTICS M BUMP rigging frame Certified for flying up to 16 SB18 or stacking up to 8 SB18 L ACOUSTICS M BAR extension bar and M JACK stacking bases x4 for M BUMP stacked configurations Integrated stacking bases Certified for stacking up to 8 SB18 without M BUMP for perfectly horizontal and regular surfaces ONLY Pole mounting Integrated 35 mm 1 4 inch socket fo...

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Page 28: ...stribution date October 21st 2010 2010 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 Printed on recycled paper ...

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