SSOUNDS · SS-LC43
SSOUNDS LC4.3
4 × 3″ full-range column for short-throw speech in small reverberant rooms, 100° × 30° from a 375 mm cabinet.
A wide loudspeaker in a small hard room reaches the walls and ceiling as loudly as it reaches the listener, and the speech smears. The LC4.3 puts four 3″ full-range drivers in a single vertical line, which narrows the vertical pattern to 30° while the horizontal holds 100°. It is the shortest column in the LC series, for meeting rooms, side chapels, small prayer rooms and shop floors where the loudspeaker has to sit flat on the wall and stay out of the way.
Part of the LC System
Four 3″ drivers in a 375 mm cabinet, 100° × 30°: short-throw speech in small reverberant rooms.
LC stands for Line Column. Drivers stacked in a vertical line that radiates as one line source, so the vertical pattern is set by the length of the column: energy lands on the listeners and stays off the reverberant ceilings and walls around them. The outdoor W models carry the same principle in IP66 die-cast aluminium, and the D models carry their own amplifier and take Dante audio and PoE power on one network cable.
Key features
- 4 × 3″ full-range drivers in one vertical line
- 100° (H) × 30° (V) coverage
- 120 Hz to 20 kHz (−10 dB)
- 113 dB continuous at 1 m from 93 dB sensitivity
- 100 W AES power handling, 8 Ω
- 375 mm tall, 4.1 kg, wall bracket
Specifications
Engineering data. The conditions each figure is specified under are stated below the table.
General
- Type
- Passive column array, full-range
Components
- Drivers
- 4 × 3″ full-range, 0.75″ voice coil
Acoustic
Connections
- Connectors
- 2 × NL4 speakON
Rigging
- Mounting
- Wall bracket
Measurement conditions
- Maximum SPL is the peak level at 1 m, driven with pink noise at crest factor 4 to the clipping point of the recommended amplifier, with the SSOUNDS system preset applied. Full-range enclosures are specified under free-field conditions; figures marked half-space are specified over a reflecting plane, the condition subwoofers are deployed in, which adds approximately 6 dB.
- Frequency response is specified on axis at 1 m in a free field. The tolerance the figure is referenced to is stated alongside it; where no tolerance is given, the figure is the −6 dB bandwidth.
- Sensitivity is specified at 1 W into the nominal impedance at 1 m on axis, averaged across the pass band of the enclosure.
- Coverage angles are nominal −6 dB values averaged across the pass band. Per-octave directivity data is available from SSOUNDS system design support for prediction and modelling.
- Power handling is rated to AES2 using pink noise with a 6 dB crest factor over a two-hour period. Programme power is twice the AES rating; peak power is four times.
- Nominal impedance is the manufacturer's rating for amplifier load calculation; minimum impedance across the operating band may be lower.
- Net weight excludes packaging, flight case, accessories and optional rigging hardware.
- Dimensions are stated in millimetres and exclude protruding rigging hardware, handles and connector panels unless noted.
- All figures are typical values for production units specified under the conditions above. Individual units may vary within published tolerances.
Directivity
Directivity computed by the SSOUNDS system prediction engine from this product's driver complement, the same dataset the printed data sheet uses. 1/24-octave band-power resolution; values are dB relative to on-axis.
Downloads
Product documentation, free to open. No registration, no form. The data sheet is a PDF rendered from the page below it; the manual is a print page, so use your browser to print it or save it as PDF.
- Technical data sheetFull specification set with the measurement conditions for each figure, modelled response curves, safety notices and warranty terms.PDF · SS-DS-LC43-EN-A4 · Rev. 2610 · Issued 08 Oct 2026
- Technical data sheet, in your browserThe same document as a page, if you would rather read it here or print it yourself.HTML print view · SS-DS-LC43-EN-A4 · Rev. 2610 · Issued 08 Oct 2026
- Architectural and engineering specificationThe “shall be” paragraph for tender documents and bills of quantities, written from this product’s own specification rows. Section of the data sheet.HTML section · SS-DS-LC43-EN-A4
- User manualUnpacking, connection, installation, operating limits, maintenance schedule and troubleshooting for this model.HTML print view · SS-UM-LC43-EN-A4 · Rev. 2610 · Issued 08 Oct 2026
- Directivity table, horizontal axisPolar data in dB relative to on axis, in the layout a measurement rig exports, for prediction and modelling. Computed by the SSOUNDS prediction engine, not measured in an anechoic chamber.CSV download
- Directivity table, vertical axisPolar data in dB relative to on axis, in the layout a measurement rig exports, for prediction and modelling. Computed by the SSOUNDS prediction engine, not measured in an anechoic chamber.CSV download
Loudspeaker data files for prediction software (GLL and CLF for EASE), 2D and 3D drawings and certification documents are issued on request. Email support@s-soundspro.com and we will send the current release for this model.
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