Wayne Parham Messages: 18788 Registered: January 2001
Illuminati (33rd Degree)
It appears to me that the BT7 horn was essentially copied to make the LABsub. I think Danley requested specs for a driver (ultimately to become the LAB12) that would work similarly to the commutated motor driver in the BT7. At any rate, the LABsub and the BT7 are very good by all rights. But the 12π basshorn sub performs better. It's louder, cleaner and more durable.