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Technical description

X12 user manual (EN) version 2.1

 8

Technical description

Low-latency preset

A low-latency preset is available for the X12 enclosure used as a monitor ([X12_MO]). It reduces latency from 3.84 ms

down to 1.19 ms (LA8) and 0.76 ms (LA4X). If the monitor is combined with a subwoofer, a custom preset must be used.

Directivity

X12 features a coaxial transducer arrangement coupled with an ellipsoid waveguide that generates an H/V directivity

pattern of 60° x 90°.

Frequency (Hz)

An

gl

)

100

1 000

10 000

−180

−160

−140

−120

−100

−80

−60

−40

−20

0

20

40

60

80

100

120

140

160

180

Frequency (Hz)

An

gl

)

100

1 000

10 000

−180

−160

−140

−120

−100

−80

−60

−40

−20

0

20

40

60

80

100

120

140

160

180

Dispersion angle diagram of a single X12 using lines of equal sound pressure at -3 dB, -6 dB, -12 dB.

Summary of Contents for X12

Page 1: ...X12 user manual 2 1 EN ...

Page 2: ...ual EN version 2 1 Distribution date December 28 2015 2015 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: ...e with LF 11 X12 with SB15m 11 X12 with SB18 12 X12 stage monitor 13 X12 stage monitor with LF 14 X12 with SB15m 14 X12 with SB18 15 Loudspeaker connection 16 Connectors 16 Connection to LA4X 17 Using SP cables with passive enclosures 17 Using SP Y1 cables 19 Connection to LA8 21 Using a DO cable with a DOSUB LA8 21 Using SP Y1 cables 23 Preset description 25 Recommendation for speaker cables 26 M...

Page 4: ...4 Disassembly and Reassembly procedures 29 D R X12 GRILL 30 D R X12 COAXIAL LOUDSPEAKER 32 D R X12 DIAPHRAGM 34 Illustrations 37 Loudspeaker cables 37 X12 specifications 38 ...

Page 5: ...stable cart stand tripod bracket or table Read the RIGGING MANUAL before installing the system Use the rigging accessories described in the rigging manual and follow the associated procedures Do not expose the product to extreme conditions Do not expose the product to rain or sea spray Do not expose the product to moisture mist steam humidity condensation or excessive heat direct sun radiator for ...

Page 6: ...oduce a 90 x 60 directivity pattern with a smooth tonal response free of secondary lobes over the entire frequency range The internal passive crossover network uses custom filters The L Acoustics amplified controllers L Drive parameters ensure the linearization and protection of the transducers With a cabinet combining the properties of birch and beech plywood X12 weighs 20 kg and its elegance mak...

Page 7: ...25 25 m 82 ft SP Y1 breakout cable for two passive enclosures 2 5 mm gauge provided with a CC4FP adapter 4 point speakON to 2 2 point speakON DO cables 8 point PA COM loudspeaker cables 4 mm gauge DO cables come in three sizes DO 7 0 7 m 2 3 ft DO10 10 m 32 8 ft and DO25 25 m 82 ft DOSUB LA8 breakout cable for four passive enclosures 4 mm gauge 8 point PA COM to 4 2 point speakON Information about...

Page 8: ...bwoofer a custom preset must be used Directivity X12 features a coaxial transducer arrangement coupled with an ellipsoid waveguide that generates an H V directivity pattern of 60 x 90 Frequency Hz Angle 100 1 000 10 000 180 160 140 120 100 80 60 40 20 0 20 40 60 80 100 120 140 160 180 Frequency Hz Angle 100 1 000 10 000 180 160 140 120 100 80 60 40 20 0 20 40 60 80 100 120 140 160 180 Dispersion a...

Page 9: ...Technical description 9 X12 user manual EN version 2 1 Monitor angles X12 features risers that allow to change the monitor angle from 35 to 55 35 55 ...

Page 10: ...standalone point source an X12 system operates over the nominal bandwidth of the X12 enclosure The X12 preset allows for a reference frequency response in short throw applications The X12 enclosure is driven by the LA4X LA8 amplified controllers Standalone X12 Enclosure Preset X12 X12 Frequency range 10 dB 59 Hz 20 kHz ...

Page 11: ... with an upper frequency limit at 100 Hz for an optimal frequency coupling with the X12 The X12 SB15m and SB18 enclosures are driven by the LA4X LA8 amplified controllers X12 with SB15m With SB15m the X12 system contour is reinforced by 8 dB at 100 Hz and the system bandwidth is extended down to 40 Hz Enclosure Preset X12 X12 SB15m SB15_100 Frequency range 10 dB 40 Hz 20 kHz Enclosure ratio 1 X12 ...

Page 12: ...reinforced by 8 dB at 100 Hz and the system bandwidth is extended down to 32 Hz Enclosure Preset X12 X12 SB18 SB18_100 Frequency range 10 dB 32 Hz 20 kHz Enclosure ratio 1 X12 1 SB18 Delay values Do not forget to add the pre alignment and geometric delays depending on the configuration X12 SB18_100 X12 0 SB18 0 ...

Page 13: ...ge monitor an X12 system operates over the nominal bandwidth of the X12 enclosure The X12_MO preset allows for a reference frequency response in stage monitoring applications The X12 enclosure is driven by LA4X LA8 Standalone X12 55 35 Enclosure Preset X12 X12_MO Frequency range 10 dB 57 Hz 20 kHz ...

Page 14: ...ended down to 40 Hz 55 35 Enclosure Preset X12 X12_MO SB15m SB15_100 Frequency range 10 dB 40 Hz 20 kHz Enclosure ratio 1 X12 1 SB15m Delay values Do not forget to add the pre alignment and geometric delays depending on the configuration xx_MO presets for the X series use the amplified controller low latency operating mode When used along with subwoofers it is recommended to use the subwoofers in ...

Page 15: ...uration xx_MO presets for the X series use the amplified controller low latency operating mode When used along with subwoofers it is recommended to use the subwoofers in low latency operating mode To achieve this create custom presets combining low latency channel sets and subwoofer channel sets If the subwoofers are driven from a dedicated amplified controller using a subwoofer factory preset the...

Page 16: ...inout for L ACOUSTICS 2 way passive enclosures speakON points 1 1 2 2 Transducer connectors Not linked Not linked The SB15m is equipped with two 4 point speakON connectors The SB18 is equipped with two 4 point speakON connectors IN LINK SB15m IN LINK SB18 Internal pinout for L ACOUSTICS subwoofers speakON points 1 1 2 2 Transducer connectors LF LF Not linked Not linked ...

Page 17: ...8 1 4 Impedance load X12 SB15m SB18 1 enclosure 8 Ω Using SP cables with passive enclosures Use SP cables SP 7 SP5 SP10 or SP25 to connect one enclosure to each of the four speakON connectors of the amplified controller If necessary use SP cables to connect identical enclosures in parallel with the first ones Refer to the cabling schemes below for more instructions SP SP SP SP OUT1 OUT3 OUT4 X12 O...

Page 18: ...Loudspeaker connection X12 user manual EN version 2 1 18 SP SP SP SP OUT1 OUT2 OUT3 OUT4 SB15m SP SP SP SP OUT1 OUT2 OUT3 OUT4 SB18 ...

Page 19: ...lified controller Use the CC4FP adapter of an SP Y1 cable to split the signal into two channels each feeding one enclosure If necessary use SP cables to connect identical enclosures in parallel with the first ones Refer to the cabling schemes below for more instructions SP SP OUT1 OUT2 X12 OUT3 OUT4 SP Y1 SP Y1 CC4FP CC4FP SP SP OUT1 OUT2 OUT3 OUT4 SB15m SP Y1 CC4FP SP Y1 CC4FP ...

Page 20: ...Loudspeaker connection X12 user manual EN version 2 1 20 SP SP SB18 OUT1 OUT2 OUT3 OUT4 SP Y1 CC4FP SP Y1 CC4FP ...

Page 21: ...8 1 enclosure 8 Ω 2 enclosures in parallel 4 Ω Using a DO cable with a DOSUB LA8 Connect a DO cable DO 7 DO10 or DO25 to the CA COM connector of the amplified controller Use a DOSUB LA8 to split the signal into four channels each feeding one enclosure If necessary use SP cables to connect identical enclosures in parallel with the first ones Refer to the cabling schemes below for more instructions ...

Page 22: ...Loudspeaker connection X12 user manual EN version 2 1 22 SP SP SP SP CA COM SB15m DO DOSUB LA8 CA COM DO DOSUB LA8 SP SP SP SP SB18 ...

Page 23: ...ller Use the CC4FP adapter of an SP Y1 cable to split the signal into two channels each feeding one enclosure If necessary use SP cables to connect identical enclosures in parallel with the first ones Refer to the cabling schemes below for more instructions SP SP OUT1 OUT2 OUT3 OUT4 SP SP SP SP X12 SP Y1 CC4FP SP Y1 CC4FP SP SP OUT3 OUT4 SP SP SP SP SB15m OUT1 OUT2 SP Y1 CC4FP SP Y1 CC4FP ...

Page 24: ...Loudspeaker connection X12 user manual EN version 2 1 24 SP SP OUT3 OUT4 SP SP SP SP SB18 OUT1 OUT2 SP Y1 CC4FP SP Y1 CC4FP ...

Page 25: ...OUT 1 PA IN A 0 dB 0 ms ON X12 OUT 2 PA IN A 0 dB 0 ms ON X12 OUT 3 PA IN B 0 dB 0 ms ON X12 OUT 4 PA IN B 0 dB 0 ms ON SB18_100 SB15_100 enclosure outputs channels routing gain delay polarity mute SB18 SB15m OUT 1 SB IN A 0 dB 0 ms ON SB18 SB15m OUT 2 SB IN A 0 dB 0 ms ON SB18 SB15m OUT 3 SB IN A 0 dB 0 ms ON SB18 SB15m OUT 4 SB IN A 0 dB 0 ms ON ...

Page 26: ...e below provides the recommended maximum length for loudspeaker cables depending on the cable gauge and on the impedance load connected to the amplifier recommended maximum length cable gauge 8 Ω load 4 Ω load 2 7 Ω load mm 2 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 53 6 11 9 74 240 37 120 25 80 For your installation projects you can use the more detailed L ACOUS...

Page 27: ...0 100222 S100054 S100033 S100082 code description qty G100013 12 coaxial speaker 8 ohms 1 1250 12 speaker gasket 4 100222 X12 grill stop screw 4 S100054 M6x30 Tuflok coated hex socket head cap screw 4 S100033 M5x25 Tuflok coated flat countersunk head machine screw 6 S100082 M4x14 hexagon socket head cap screw 4 ...

Page 28: ...100033 S100082 code description qty 17581 diaphragm assembly with 2 shims 1 1250 12 speaker gasket 4 100222 X12 grill stop screw 4 S100054 M6x30 Tuflok coated hex socket head cap screw 4 S100033 M5x25 Tuflok coated flat countersunk head machine screw 6 S100082 M4x14 hexagon socket head cap screw 4 ...

Page 29: ...Maintenance 29 X12 user manual EN version 2 1 Disassembly and Reassembly procedures In order to operate follow the order outlined here START X12 GRILL X12 COAXIAL SPEAKER X12 DIAPHRAGM ...

Page 30: ...s Name Reference Distributor electric screwdriver with torque selector T25 Torx bit EX 625 FACOM Pre requisite The enclosure is placed on its bottom face as illustrated X12 grill disassembly procedure Procedure 1 Remove the screws securing the grill Use the T25 Torx bit 2 Remove the grill from the enclosure ...

Page 31: ... procedure Pre requisite For safety reasons always use the new screws and spare parts provided in the KR Procedure 1 Position the grill Make sure the logo is on the right hand side 2 Secure the grill with the S100033 screws Use the T25 Torx bit Set the torque to 5 N m ...

Page 32: ...lector 5 mm hex bit EH 605 FACOM Pre requisite Grill disassembled See X12 GRILL p 30 The enclosure is placed on its bottom face as illustrated X12 speaker disassembly procedure Procedure 1 Remove the screws securing the speaker Use the 5 mm hex bit 2 Carefully remove the speaker assembly and disconnect the speaker cables 3 Remove the speaker gasket 4 Clean any remaining glue from the cabinet ...

Page 33: ...parts provided in the KR Procedure 1 Stick the four gaskets on the cabinet Use the inserts as a reference to position the gaskets 2 Connect the speaker cables and position the speaker The LF speaker connectors are positioned downwards 3 Secure the speaker with the provided 100222 screws and S100054 screws Use the 5 mm hex bit Set the torque to 5 Nm ...

Page 34: ... 3 Carefully remove the diaphragm 4 If there are shims on the dome carefully remove them Take note of how many and what kind of shims are present X12 diaphragm reassembly procedure Pre requisite For safety reasons always use the new screws and spare parts provided in the KR Procedure 1 Clean the dome and the air gap Use a blower or double face adhesive tape to remove any particle Make sure the air...

Page 35: ...e the cover to the speaker using four S100082 screws a Gradually secure each screw manually with the Allen wrench n 3 Follow a cross scheme 1 2 3 4 b Tighten the screws in the same order with the electric screwdriver 3 mm hex bit Set the torque to 3 5 Nm ...

Page 36: ... to set the sound level before testing 5 Send a test signal of 1 5 kHz at 1 Vrms for 5 seconds The sound should remain pure and free of unwanted noise Troubleshooting The sound resulting from the test is not pure and high frequency harmonic distortions or strange vibrations are audible Possible causes There are foreign particles on the air gap The number of shims is wrong The screws used for reass...

Page 37: ...ble 5 m 16 4 ft SP10 4 point speakON loudspeaker cable 10 m 32 8 ft SP25 4 point speakON loudspeaker cable 25 m 82 ft DO 7 8 point PA COM loudspeaker cable 0 7 m 2 3 ft DO10 8 point PA COM loudspeaker cable 10 m 32 8 ft DO25 8 point PA COM loudspeaker cable 25 m 82 ft DOSUB LA8 breakout cable for four passive enclosures SP Y1 breakout cable for two passive enclosures ...

Page 38: ...ex laminar vents HF 1 3 compression driver neodymium ellipsoidal waveguide Nominal impedance 8 Ω Connectors IN speakON LINK speakON Rigging and handling 2 handles DIN580 compatible M8 threaded insert 4 M10 threaded inserts 2 35 mm pole sockets Weight net 20 kg 44 1 lb Cabinet first grade Baltic beech and birch plywood Finish dark grey brown PANTONE 426C pure white RAL 9010 custom RAL code on speci...

Page 39: ...D 496 mm 430 mm 375 mm 19 5 in 16 9 in 14 8 in Monitor H W D 341 mm 496 mm 500 mm 13 4 in 19 5 in 19 7 in Monitor with risers H W D 403 mm 496 mm 471 mm 15 9 in 19 5 in 18 5 in 496 mm 19 5 in 430 mm 16 9 in 375 mm 14 8 in 471 mm 18 5 in 500 mm 19 7 in 341 mm 13 4 in 403 mm 15 9 in ...

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