Sound Distribution and Electrical Specifications
The document provides detailed specifications for the Kroma mec S.r.l. loudspeakers, focusing on sound distribution and electrical features. The sound levels are specified at various distances, with a polar diagram illustrating outdoor loudness distribution. The electrical features include selectable power options (6W, 12W, 20W, 25W), a rated voltage of 100V, and an audio line impedance of 16 Ohms. The output sound pressure levels and frequency ranges vary with power settings, ensuring adaptability to different environments.

Material and Installation Details
The loudspeakers are constructed from a light alloy for the body, cover, and horn cone, with adjustable galvanized steel lugs for installation. Stainless steel hardware and EPDM gaskets are used, ensuring durability and resistance to harsh conditions. The unit weighs 3.5 kg and features a cable entry of N° 1 Ø 3/4”.

Explosion-Proof Features
The ETH20MDLOUD series is designed for use in potentially explosive atmospheres, compliant with Directive 2014/34/UE. They are suitable for zones 1 and 2, with a high protection rating of IP66, making them ideal for offshore and onshore installations. The loudspeakers can be connected to standard 100V amplification systems and alarm systems, with a special sintering filter separating the acoustic compression chamber from the environment.

Additional Features
The loudspeakers are equipped with a transformer, allowing for sound level adaptation based on installation needs. The materials used include an aluminium alloy body and epoxy coating in RAL 7000, ensuring robustness and longevity.