My personal 2 way project

[Dissi]

ggerla,

You are on a good track with your project now. 🙂

In order to improve the accuracy of your simulation I suggest to update your zma files. The original files from post #11 are a bit off IMO and may lead to deviations that are unnecessary. Attached is a zip containing my impedance files.

Regarding coils I would go for 0.8 mm (20 AWG) air core in the woofer section. They are cheaper, don't cause distortions and the higher DCR actually does improve the bass response in a closed box (on the expense of sensitivity, of course). In the tweeter section 0.7 mm air core usually is fine.

 

[ggerla]

ggerla,

You are on a good track with your project now. 🙂

In order to improve the accuracy of your simulation I suggest to update your zma files. The original files from post #11 are a bit off IMO and may lead to deviations that are unnecessary. Attached is a zip containing my impedance files.

Regarding coils I would go for 0.8 mm (20 AWG) air core in the woofer section. They are cheaper, don't cause distortions and the higher DCR actually does improve the bass response in a closed box (on the expense of sensitivity, of course). In the tweeter section 0.7 mm air core usually is fine.

Thanks Dissi.
I used your files to make some other simulation and confirm my choise.
About your coil suggestions I tried to use air coil but they are more expansive and reduce too much SPL. I think that i will use iron core.

I'm not very happy with the low frequency response, but I think that with this budget I could not do better than this...

 

[ggerla]

Poor crossover

Hi all
sorry if I come back on this thtread but I found a crossover configuration that allow me to save 30€.
In attach you can find schematic, spl and impedence.
What do you think about this solution?

 

[ggerla]

Work in progress...

Yesterday I start to build my project.
In attach some photos.
Because I have no clamps I'm using screws... with some problem (split in lateral wall), but I have not wanted to buy clamps only to build speakers.



regards

 

[ggerla]

Crossover build...

I finished to build crossover. I test them using a wave form generator and oscilloscope. Now I have to cut wood and paste components on it...

 

[kokomel]

🙂

Hi all
sorry if I come back on this thtread but I found a crossover configuration that allow me to save 30€.
In attach you can find schematic, spl and impedence.
What do you think about this solution?

What about using box ported, is there who can help design the cabinet and crossover?

 

[wolf_teeth]

Hi all
after your suggestion I make several simulation and several study.
Basing on zaph's project "The Chameleon"

SB Acoustics 2-Way Title Page
I didn't understand why zaph's response is more smooth. I have some ripple between 200Hz and 1kHz. I think that I'm not able to do better.
What do you think about this project?

Just an FYI- The 'Chameleons' were not a project zaph built, just one that he hosted for another builder. IIRC, that project was done by Dave Ralph (dlr).

Later,
Wolf