Also Just Checked if it computes it does but the output still rly wrong because the LEM model is not considering any horn.
And also some other stuff I have to check but Computing time for now is quite ok
And also some other stuff I have to check but Computing time for now is quite ok
Well I have 0% sucessful experience witk AKABAK, tried simulating some HF waveguides in the past with not so good results 🙂
BTW sorry for all screw holes in 3D model
If we figure out step by step how to accurately simulate those cabs that would help me to make other designs too. Idea and 3D modeling is super easy for me but I always get stuck on simulations and wondering if design is even optimal.
BTW sorry for all screw holes in 3D model
If we figure out step by step how to accurately simulate those cabs that would help me to make other designs too. Idea and 3D modeling is super easy for me but I always get stuck on simulations and wondering if design is even optimal.
Yea AKABAK can be at times a bit fiddly but it can work very well. The only feasable and best approach for this type of sub I guess will be to go back and forth between real world messurments and optimizing the model untill we get simmilar results because I don't quite know yet how the horn mouth especially should be parameterized in LEM.
If we are able to recreate your current design in the model we can from there start to modify the current design and see how to improve it further.
But as Tom Danley already mentioned on a forum about the BC is that it will only give us a well informed guess but at the end we have to prototype it I guess.
And if we want to work on minimizing distortion caused by turbolance inside the horn we would need to work with a FIM modeling ofcause which AKABAK can't do.
If we are able to recreate your current design in the model we can from there start to modify the current design and see how to improve it further.
But as Tom Danley already mentioned on a forum about the BC is that it will only give us a well informed guess but at the end we have to prototype it I guess.
And if we want to work on minimizing distortion caused by turbolance inside the horn we would need to work with a FIM modeling ofcause which AKABAK can't do.
Your measurements indicate the enclosures are working as Vermond's simulation models predicted, and a pair are very close to the DSL BC218 response, other than the choice to move the FC up a few Hz for more output.
The box is based on a Danley design, he generally does a very good job of optimizing them before putting products into production 😉 .
Art
Yea for sure he usually refines his designs before releasing any product or design. Some products he also optimized over the years after initial production. Often seen in his new iterations of old designs.
I reference Tom Danleys post on here talking about the Boundary compliment designs and talking how he uses AKABAK with extensive prototyping and validation using real life messurments due to the limitations of the Modeling alone for his designs to put my comment into context 🙂
https://www.diyaudio.com/forums/subwoofers/263812-danley-bc-subs-reverse-engineered-post4104201.html
I reference Tom Danleys post on here talking about the Boundary compliment designs and talking how he uses AKABAK with extensive prototyping and validation using real life messurments due to the limitations of the Modeling alone for his designs to put my comment into context 🙂
https://www.diyaudio.com/forums/subwoofers/263812-danley-bc-subs-reverse-engineered-post4104201.html
Last edited: