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Summary of Contents for Fohhn LEN-Series
- Page 1 Linea LEN EN54-24-certified line source speakers for voice alarm applications. User Manual LEN-20 (b) LEN-60 (b) LEN-100 (b) LEN-150 (b) LEN-220 (b) Please read this manual carefully before operating the equipment and keep it for the future reference.
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Page 2: Table Of Contents
Content 1. Important safety information ......................3 1.1 Connections and cabling ....................... 4 2. Introduction ............................5 2.1 Intended readers of this manual ....................5 2.2 Scope of supply ..........................5 2.3 Unpacking the product ........................5 3. Setup and operation ..........................6 3.1 Installation and mounting ...................... -
Page 3: Important Safety Information
• Only use the recommended Fohhn accessories with this product, or other components that have been explicitly specified in this manual. •... -
Page 4: Connections And Cabling
To avoid injury, this product must be taken out of operation, appropriately marked and secured against unauthorised use if • it shows any visible signs of damage. • there is any indication of loose parts. • it does not work properly. •... -
Page 5: Introduction
LEN loudspeaker systems feature two-way technology with integrated passive filters that guarantee an even dispersion and the best possible coverage. An integrated Fohhn Source Division Waveguide (SDW) effectively suppresses side lobes, resulting in improved speech intelligibility for acoustically challenging venues with long reverberation times, such as railway stations, airports, auditoria and conference halls. -
Page 6: Setup And Operation
Connections between loudspeakers and brackets All LEN (b) loudspeakers are equipped with slot nuts placed in the rear T-slot at delivery. All Fohhn brackets include fastening materials for connecting them to the loudspeaker. If you want to use other screws, their strength must be at least class 8.8; this corresponds to a tensile strength of 800 N/mm²... -
Page 7: Wiring
When anchoring the system to the wall, dynamic strength caused by the falling loudspeaker must also be considered. 3.2 Wiring All loudspeakers of the LEN (b) series are passive systems designed for use with external amplifiers. Two terminal connectors are used for wiring, each with two pins and supplied at delivery. They are suitable for wires with a cross section of up to All cables used must be of an appropriate 2,5 mm². -
Page 8: Operating Conditions
Fohhn. Do not carry our any servicing or repair on a system other than stated above. To find a Fohhn Service centre in your area, please contact us at the address on the back page of this manual. Keep the packaging that has been supplied with this system so that, in the event of any damage, it can be returned in its original packaging. -
Page 9: Technical Data
4. Technical data 06/2024... -
Page 10: Measuring Charts
4.1 Measuring Charts Picture 3: Frequency response LEN-20 (b) Picture 4: Frequency response LEN-60 (b) 06/2024... - Page 11 Picture 5: Frequency response LEN-100 (b) Picture 6: Frequency response LEN-150 (b) Picture 7: Frequency response LEN-220 (b) 06/2024...
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Page 12: Reference Axis Plan
4.2 Reference Axis Plan Model LEN-20 (b) LEN-60 (b) LEN-100 (b) LEN-150 (b) LEN-220 (b) 1100 06/2024... -
Page 13: Accessories
5. Accessories WS-2 WS-4 WS-5 WLX-100 WLX-200 SB-S SB-L 06/2024... -
Page 14: Eg Conformity (Ce Marking)
6. EG Conformity (CE marking) Fohhn Audio AG declares that this (these) product(s) conform(s) to the essential requirements and other regulations set out in EG directives 1438 2004/108/EG and 2006/95/EG. 06/2024... -
Page 15: Declaration Of Performance
Part 24: Components of voice alarm systems - Loudspeakers; German version EN 54-24:2008 7.4 Name, registered trade name or registered trade mark and contact address of the manufacturer as required pursuant to Article 11(5): Fohhn Audio AG Grosser Forst 15 72622 Nuertingen, Germany Tel +49 7022 93323-0... - Page 16 Fire detection and fire alarm systems - Part 24: Components of voice alarm systems - Loudspeakers Name of construction product LEN-Series LEN-20 T, LEN-60 T, LEN-100 T, LEN-150 T, LEN-220 T LEN-20 (b), LEN-60 (b), LEN-100 (b), LEN-150 (b), LEN-220 (b)
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Page 17: Weee Directives (Disposal)
7.10 The performance of the product identified in points 1 and 2 is in conformity with the declared performance in point 9. This declaration of performance is issued under the sole responsibility of the manufacturer identified in point 4. Signed for and on behalf of the manufacturer by: City: Nuertingen Date: 11.12.2017 Signature:... -
Page 18: Appendix
10. Appendix 06/2024... - Page 19 06/2024...
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- Page 25 FOHHN AUDIO AG Großer Forst 15 72622 Nürtingen Germany Tel. +49 7022 93323-0 Fax +49 7022 93324-0 www.fohhn.com info@fohhn.com Fohhn on Social Media 06/2024...
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