Wayne Parham Messages: 18786 Registered: January 2001
Illuminati (33rd Degree)
Driver position is important in my speaker designs, as is the horn chosen. I've used some Altec horns over the years, and many of them are old favorites. The Altec 811 is one of my favorite classic horns. But it cannot be used in any of my current designs, as a complete crossover redesign would be required. So don't use a different horn than what is called out in the plans or performance will suffer.
Now, if what you're talking about is just the 807 driver, that's a little different. I am assuming you have an 807 driver mounted on an 811 horn. But if you're willing to use just the driver, you can do that. It will bolt on and work just fine. The 807 is an 8Ω driver with similar characteristics to the compression drivers I use in current production models.