Post by passion on May 10, 2011 14:41:19 GMT 7
The speaker that i recommended here is magnetic speaker which had been tested against bird sound profile.
All together 3 types,
i. Directional tweeter (1.3kg each) can cover 0.5km : for ext. sound (biggest size speaker) HORN DESIGN
ii. Ext. sound speaker which install at main entrance and INSIDE the BH (medium size speaker) HORN DESIGN
iii. Int. sound speaker (smallest size) ROUND DESIGN
All together 3 types,
i. Directional tweeter (1.3kg each) can cover 0.5km : for ext. sound (biggest size speaker) HORN DESIGN
ii. Ext. sound speaker which install at main entrance and INSIDE the BH (medium size speaker) HORN DESIGN
iii. Int. sound speaker (smallest size) ROUND DESIGN