L-Acoustics K1 User Manual

Loudspeaker congurations
Additional subwoofer system
A K1 line source or a K1/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 impact
• KS28 or SB28 for infra extension
The recommended ratio is one K1 for one subwoofer, whether using K1-SB subwoofers only, KS28 or SB28 subwoofers
only, or a combination of both.
The [K1SB_60], [KS28_60], and [SB28_60] presets provide the subwoofers with an upper frequency limit at 60 Hz for
an optimal frequency coupling with the line source.
K1-SB and SB28 are driven by the LA8 / LA12X amplied controller.
KS28 is driven by the LA12X amplied controller.
K1-SB
K1-SB provides an extension of the bandwidth in the low end, down to 30 Hz. Depending on the deployment, LF
rejection can be produced.
Two deployments are available in this conguration:
• K1-SB beside the K1 or K1/K1-SB line source : side LF rejection (polarized)
• K1-SB behind the K1 or K1/K1-SB line source : rear LF rejection (cardioid)
Line source with K1-SB beside
K1 LINE SOURCE /
K1/K1-SB LINE SOURCE
[PRESET]
[K1SB_60]
0.5 to 1 m
(1.5 to 3 ft)
Enclosure K1 K1-SB in line source K1-SB as subwoofer
Preset [K1] [K1SB_X] [K1SB_60]
Frequency range (-10 dB) 30 Hz - 20 kHz
Recommended ratio 1 K1 : 1 subwoofer
Recommended distance
between front panels
Between 0.5 m (1.5 ft) and 1 m (3 ft)
K1 user manual (EN) version 6.0 11

L-Acoustics K1 Specifications

General

Frequency Response	35 Hz - 20 kHz
Nominal Impedance	8 ohms
Enclosure Material	Baltic birch plywood
Components	2 x 15" LF, 4 x 6.5" MF, 3 x 3" HF
Amplification	External
Connectors	2 x NL4