Inspect the product before operation. If any sign of defect or damage is detected, immediately withdraw the product from use for maintenance. Never incorporate equipment or accessories not approved by L-Acoustics. Read all the related PRODUCT INFORMATION documents shipped with the products before exploiting the system.
The K2 loudspeaker enclosure is based on a 3-way active design. It comprises 4 input sections: 2 LF and 1 MF at a nominal impedance of 8 ohms, and 1 HF at a nominal impedance of 16 ohms. It features two 12" speakers and four 6.5", all direct-radiating neodymium speakers mounted in a bass-reex enclosure, and two 3"...
Refer to the LA4X / LA12X user manual for detailed instructions about the whole cabling scheme, including modulation cables and network. Rigging elements Rigging elements or procedures are not presented in this document. Refer to the K2 rigging manual. Software applications Soundvision 3D acoustical and mechanical modeling software LA Network Manager Software for remote control and monitoring of amplied controllers...
0.7 m / 5 m / 10 m / 25 m CH(1) CH(2) SP.7 / SP5 / SP10 / SP25 SP-Y1 SPK1 SPK2 0.7 m / 10 m / 25 m SPK3 SPK4 DO.7 / DO10 / DO25 DOSUB-LA8 K2/KS28 user manual (EN) version 3.0...
The K2 enclosure features an adjustable horizontal directivity system. Using the adjustable ns, horizontal directivity can be adjusted with four different settings: 110° / 70° symmetric or 90° asymmetric (35°/55° or 55°/35°). A specic K2 preset must be used for each directivity setting.
There are two distinct applications for K1-SB in a K2 system: — As an LF extension in a line source for enhanced throw, using the [K1SB_X K2] preset with K2 — As a subwoofer for increased impact, using the [K1SB_60] preset Both applications of K1-SB can be combined in the same conguration.
By providing the K1-SB with the same frequency response as the K2 low section, the [K1SB_X K2] preset allows the K1-SB enclosure to be used as an LF line source element, increasing the length of the sub-low line source.
Page 11
Recommended ratio 3 K2 : 1 K1-SB Minimum line length 12 K2 + 4 K1-SB When using [K2] with [K1SB_X K2], do not add any delay value between the K2 and K1-SB elements of a same line source. K2/KS28 user manual (EN) version 3.0...
Loudspeaker congurations Additional subwoofer system A K2 line source or a K2/K1-SB line source can be deployed with additional subwoofer enclosures to provide increased sub-low resources to demanding applications. Two subwoofer systems are available: — K1-SB for increased LF contour —...
Page 13
Frequency range (-10 dB) 30 Hz - 20 kHz Recommended ratio 3 K2 : 2 subwoofers Maximum number line length 12 K2 + 4 K1-SB Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration.
Page 14
Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. When using [K2] with [K1SB_X K2], do not add any delay value between the K2 and K1-SB elements of a same line source. Pre-alignment delays...
Page 15
Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. When using [K2] with [K1SB_X K2], do not add any delay value between the K2 and K1-SB elements of a same line source. Pre-alignment delays...
[K1SB_60] [KS28_60] Frequency range (-10 dB) 25 Hz - 20 kHz Recommended ratio 3 K2 : 2 subwoofers Grouping subwoofers 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 if the upper frequency limit of the subwoofer system is at 60 Hz or 100 Hz, respectively.
Page 17
Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. When using [K2] with [K1SB_X K2], do not add any delay value between the K2 and K1-SB elements of a same line source. Pre-alignment delays...
Loudspeaker connection Loudspeaker connection Connectors The K2 is equipped with two 8-point PA-COM connectors. LINK Internal pinout for L-Acoustics 3-way active enclosures PA-COM points Transducer connectors left LF right LF The K1-SB is equipped with one 4-point speakON connector. K1-SB KS28 is equipped with one 4-point speakON connector.
1 enclosure: LF 8 Ω / MF 8 Ω / HF 16 Ω Connecting 3-way active enclosures custom speakON-to-PA-COM on speakON output L-Acoustics does not supply the speakON-to-PA-COM interface. It must be built with two 4-point speakON connectors and a female 8-point PA-COM connector (no cable clamp). speakON to PA-COM...
Page 20
Connecting subwoofers SP and SP-Y1 on speakON output CH(1) (OUT1) SP-Y1 CC4FP CH(2) (OUT2) OUT3/OUT4 OUT1/OUT2 same as OUT1/OUT2 DO and DOSUB-LA8 on CA-COM output SPK1 (OUT1) CA-COM SPK2 (OUT2) SPK3 (OUT3) SPK4 (OUT4) K2/KS28 user manual (EN) version 3.0...
Preset description Preset description [K2 70] [K2 90] [K2 110] loudspeaker elements outputs channels routing gain delay polarity mute left LF OUT 1 IN A 0 dB 0 ms right LF OUT 2 OUT 3 OUT 4 [K1SB_60] [K1SB_X K2] [KS28_60]...
4 Ω load 2.7 Ω load For your installation projects, you can use the more detailed L-ACOUSTICS calculation tool to evaluate cable length and gauge based on the type and number of enclosures connected. The calculation tool is available on our website: http://www.l-acoustics.com/installation-outils-de-calcul-137.html...
Rigging components high grade steel with anti-corrosion coating Finish dark grey brown Pantone 426C IP55 Peak level at 1 m under half space conditions using pink noise with crest factor 4 (preset specied in brackets). K2/KS28 user manual (EN) version 3.0...
3D fabric Rigging components high grade steel Finish dark grey brown Pantone 426C Peak level at 1 m under half space conditions using pink noise with crest factor 4 (preset specied in brackets). K2/KS28 user manual (EN) version 3.0...
Specications KS28 dimensions 702 mm / 27.6 in 1340 mm / 52.8 in 1351 mm / 53.2 in K2/KS28 user manual (EN) version 3.0...
Page 29
L-Acoustics, an L-Group Company 13 rue Levacher Cintrat - 91460 Marcoussis - France +33 1 69 63 69 63 - info@l-acoustics.com www.l-acoustics.com L-Acoustics GmbH L-Acoustics Ltd. L-Acoustics Inc. Steiermärker Str. 3-5 PO. Box Adler Shine - Aston House 2645 Townsgate Road, Suite 600...
Need help?
Do you have a question about the K2 and is the answer not in the manual?
Questions and answers