A shield for the "input area" of the decoy driver was pronted and is glued. Controlled size holes will be drilled gradually towards the driver capabilities at high power of the main driver, to sustain controlled excursion.
Tomorrow tests will be conducted, but even with preliminary setup, I smelled the big driver voice coil first before the small driver giving up, so it is on the right path. 💪
Also during the tests, the enclosure started jumping light an old washing machine, widening my grin with this project.
Tomorrow tests will be conducted, but even with preliminary setup, I smelled the big driver voice coil first before the small driver giving up, so it is on the right path. 💪
Also during the tests, the enclosure started jumping light an old washing machine, widening my grin with this project.
So the decoy driver undergone preliminary "input area" tuning, and while it moves tad too little, I am keeping it like that for various reasons. Let's see how it turns out.
In the meantime, the box is getting paintjob.
Curing before protective warnish application:
While it is cheap paint and chipboard box, Ot will get some corner guards to be on the safe side.
Some synthetic wool will be stolen from the PA sub project, and hopefully tomorrow evening it will be assembled for testing.
I have BIG ISSUE with vibrations of the downfiring sub. Some antishock feet will have to be used later. Tried to 3D print some myself, and it did not end up well. For safety reasons, I want some kind of feet that will survive sitting of a person on the sub. So the shock absorber either has to be rather full-soft rubber thingie, or some endstop to the absorbtion range has to be implemented in the foot. That will take somewhat longer to solve. It might even be the most expensive part on the sub.
In the meantime, the box is getting paintjob.
Curing before protective warnish application:
While it is cheap paint and chipboard box, Ot will get some corner guards to be on the safe side.
Some synthetic wool will be stolen from the PA sub project, and hopefully tomorrow evening it will be assembled for testing.
I have BIG ISSUE with vibrations of the downfiring sub. Some antishock feet will have to be used later. Tried to 3D print some myself, and it did not end up well. For safety reasons, I want some kind of feet that will survive sitting of a person on the sub. So the shock absorber either has to be rather full-soft rubber thingie, or some endstop to the absorbtion range has to be implemented in the foot. That will take somewhat longer to solve. It might even be the most expensive part on the sub.
Ladies and gentlemen, behold, the GFhorn (Ghost-flex). 5.25" Earth-shaker, air-displacer, gut-mover. 🤭
Work in progress. Final assembly possibly tomorrow measurements and showcase next.
Work in progress. Final assembly possibly tomorrow measurements and showcase next.
The setup was assembled and preliminary listening test done. All parts seem to be hitting the same even limit, no weak link at the moment. For 5.25" the bass is absolutely monstrous.
The enclosure is not just vibrating or travelling, it is positively JUMPING. Solving the antishock feet will be real challenge. Using cardboard for the moment, it somehow stabilizes the box travel, but the whole "box displacement", meaning jump travel up and down, gets bigger. I might be forced to put a metal plate on the bottom of the enclosure to make it heavier. Sick...
The enclosure is not just vibrating or travelling, it is positively JUMPING. Solving the antishock feet will be real challenge. Using cardboard for the moment, it somehow stabilizes the box travel, but the whole "box displacement", meaning jump travel up and down, gets bigger. I might be forced to put a metal plate on the bottom of the enclosure to make it heavier. Sick...