The HA-450L is an outdoor long range mass notification speaker incorporating "line array speaker technology" for delivering the sound at a far distance. It consists of 4 steel long-throw CD horns with 4 x 50W at 16Ω, weather-proof compression driver and metal hardware for stacking multiple horns. It can be used for Military Sound Systems, emergency PA systems, evacuation, and alert systems.

• Outdoor long range speaker incorporating "line array speaker technology" which is often used for speakers in concert halls, etc
• The horn array speaker has less sound decay than and can deliver the sound about twice as far as conventional outdoor speakers
• The sound is mild near-by the speaker and clear far away from the speaker