I'm sorry if I missed the other post, but I would like ask if you are willing to share your thoughts about if this mounting method has any sonic tradeoffs with a standard baffle configuration.
Did you see any sonic benefits doing something more of a Bullet shape for the back of the tweeter cup or a classic tear drop shape?
Does it sound different having the tweeter in front? How have you compensated for things like Phase cancellations and anomalies.
Have you thought about doing it Backwards? Say for example using a tear drop shape behind the mid range, and then having the tweeter behind it in a wave guide? That would seem to work better on paper I think as the physics play out that way with some drivers.
Very good work. Now take better photos! LOL! They look like they took some time to make. Show the off!
That's and ORDER!
Good work by the way!
Last question if you will. How does that tweeter sound on and of axis? Do you think the inverted dome is better then the typical dome tweeter, and how does it compare with other tweeters that you have experience with?
Hey Mickey thanks for the comments. As long as you are willing to accept a slightly lower than spec’d xover point for the 3in and tweeter you see here, then there’s really no tradeoffs. With a 3 inch woofer beaming can start to occur around 2k but most people wouldnt notice the effect on an A B comparison till around 3k or higher.
The bullet shape you refer to may help with some turbulence but id have to pull the tweeter even farther away from the 3in to result in the same air space i have in front of it. My main goal was to maximize the front air space and minimize the height of the tweeter, for space reasons. Positioning of the tweeter was done with an initial tweeter baffle print and my ears.
Phase becomes your best friend in this configuration. With this configuration i have, on average, more area in the car to sit where the alignment is good. In a standard side by side baffle configuration your perfect alignment will only ever be in one plane, hopefully it intersects with the driver seat. In this configuration I’ve created an invisible cone which can have correct alignment everywhere inside it.
Personally I think the tweeter must be in front, if you cant see your tweeter with your eyes you aren’t hearing it all with your ears. I’ll never understand why someone would mount a tweeter not only farther away than the mid but lower than the mid as well, unless for space reasons. Tweeters are on the top halves of studio monitors for a reason. The inverted dome is nice and up until recently was mounted far off axis. It works, but if you want audiophile then you need it pointing much more towards you.
And the pics! I know, I’ll have more this week, the 3in baffle is currently fiberglassed into place. Filler coming up but unfortunately i can’t let the house smell like filler on Mother’s Day!
