Speakers Speaker & Stainless Steel Enclosure ELK-1RT Flush Mount Speaker ELK-SP12F Echo™ Speaker ELK-70 Compact Echo™ Speaker ELK-73 40 Watt, 8 Ohm, Exterior Speaker ELK-SP40 30 Watt, 8 Ohm, Exterior Speaker ELK-SP30 30 Watt Compact Speaker ELK-44 20 Watt, 8 Ohm, Interior Speaker ELK-SP35 15 Watt, 8 Ohm, Exterior Speaker ELK-SP15