Torvet

The Massive Audio "F3" 1 Inch Screw On Bi-Radial Horn boats excellent off-axis consistency for smooth and clear high frequency reproduction. 

DF6B - 6.5" 90 X 90, ABS, BOLT-ON, FLARE HORN FOR 6.5" MID-BASS & MID-RANGE DRIVERS... 

The Massive Audio F4 is a 2" Exit, 4-Bolt Mount Horn that is made from cast aluminum for durable, high performance dispersion and accurate sound reproduction.