Fohhn, LC-20 black, Weatherproof passive line source speaker system, Suppression of side lobes by Source Division Waveguides (SDW), 2x 4" drivers with treated cones, low impedance version, screw terminal, black

Passive loudspeaker system in weatherproof aluminium enclosure, equipped with 2 high-quality 4" wideband drivers with treated cones for optimum efficiency in speech reproduction. The line source speaker is intended for use in fixed installations where the highest demands for speech intelligibility and visual appearance must be met.

Linea LC at a glance:

• Elegant designer line source speaker in cutting-edge aluminium enclosure
• Exceptionally even dispersion
• "Side lobe free" – passive realization
• Equipped with specially developed high performance speakers
• Excellent speech intelligibility and sound quality,
• Long reach
• Low impedance technology
• Weather resistant without requiring additional protection (protection class IP54 in accordance with IEC529/EN60529)
• Ball impact resistant front grille, in enclosure colour, made from galvanised sheet steel
• Supplied in all RAL Classic colours – special colours or exclusive photo-realistic decorative surfaces (Fohhn Texture Design) available on request
• Innovative technology and outstanding quality – Made in Germany

Passive 2-way loudspeaker system, optimised for speech reproduction

Passive loudspeaker system in weatherproof aluminium enclosure, equipped with 2 high-quality 4" wideband drivers with treated cones for optimum efficiency in speech reproduction.

With a short-term capacity of up to 240 W, the loudspeaker system can generate a maximum SPL of 117 dB. It has a very precise dispersion of 130° x 60° (h x v) and a frequency range of 120 Hz to 12 kHz.

The loudspeaker system has an extruded aluminium enclosure with steel bracings and is completely weatherproof (conforming to protection class IP54, in accordance with IEC 529 / EN 90529 standard). It is therefore ideally suited to both indoor and outdoor applications. Optionally available in all RAL Classic colours. Other colour catalogues or photorealistic finishes are also possible on request

To protect the loudspeaker drivers and electronics, the enclosure is fitted with a ball impact resistant, high-quality, sound permeable grille made from galvanized, powder-coated steel in the enclosure colour. 4 x M6 integrated screw threads on the base, rear panel and top of the enclosure are designed to accommodate mounting brackets.

Connectors: stable screwed terminal connectors for up to 4 mm² cable cross section with waterproof cable gland. Double connector blocks enable loudspeaker signals to be looped through.

Electroacoustic features
Acoustic design: weatherproof passive loudspeaker, closed, passive 2-way CD crossover, suppression of side lobes by Source Division Waveguides
Components: 2 x 4" treated drivers
2-way design: no
Power rating (nominal) [1]: 60 W
Power rating (programme) [2]: 120 W
Power rating (peak) [3]: 240 W
Sound pressure [4]: 93 dB SPL
Max sound pressure: 117 dB SPL
Frequency range [5]: 120 Hz – 12 kHz
Nominal directivity (h x v) [6]: 130° x 60°
Nominal impedance: 16 Ohm

Loudspeaker features
Enclosure: weatherproof aluminium enclosure, powder coated, with steel bracings
Protection grille: ball impact resistant grille, galvanized and powder coated in enclosure colour, backed by acoustically transparent foam
Mounting points: 4x M6 screw threads
Protection class according to EC529/EN60529: IP54
Connectors: screwed terminal connectors capable of receiving up to 4 mm², two per pin, terminal cover with dual cable gland for up to 10 mm cable diameter
Weight [7]: approx. 2.5 kg
Dimensions (W x H x D): approx. 130 x 230 x 120 mm
Standard colours: black (RAL 9005) or white (RAL 9016), powder coated

Optional features
Optional colours: all RAL Classic colours, other colour catalogues or photo realistic finishes possible on request
Weather protection: protection class IP54, weatherproof without additional protective measures
Connectors: ceramic terminals capable of receiving up to 2.5 mm²

CAAD simulation data: EASE, Ulysses, CLF

Manufacturer: Fohhn Audio AG
Model: LC-20

All measurements normalised to free-field anechoic full space conditions:
[1] According to IEC-60268-5 long term
[2] Entsprechend IEC-60268-5 short term
[3] Peak, 20 ms with bandpass filtered pink noise signal according to IEC 60268-2, at one octave above the lower limit of the frequency range
[4] 2.83 V at 8 Ohm (2 V at 4 Ohm, 3.64 V at 12 Ohm, 4 V at 16 Ohm) normalised at 1 metre distance
[5] -10 dB under anechoic half space conditions
[6] Horizontal x vertical at -6 dB, average 1-4 kHz
[7] Net weight without other components