Visaton 2xAL130_KE25SC

[vulejov]

After http://www.diyaudio.com/forums/multi-way/274695-visaton-al130_g20sc.html project next idea was pair of AL130 in one box..
This was the plan..
http://www.diyaudio.com/forums/multi-way/274695-visaton-al130_g20sc.html

 

[vulejov]

This is how it looks now..
Very unproffesional mesurements with iphone..
Final XO version probably will be without second 1R resistor on AL130, and maybe 1R5-1R8 instead of 2R2 on KE25SC.. but all that after serious measurements..

 

[vulejov]

1R5 instead of 2R2..

 

[eriksquires]

That is a very high order network! Especially on the high pass section. Remember in your simulations to account for distance differences between tweeter and woofer, and that each woofer will be a different distance.


Best,


Erik

 

[vulejov]

Boxsim simulation calculate distance between drivers, positions on front panel too..
One more slight XO change..

 

[vulejov]

A little bit more of destruction..

 

[vulejov]

Finally..

 

[vulejov]

Measurements with Behringer ECM8000 instead of Iphone 5C..

 

[peterbrorsson]

Hi there,
Are you using a bigger box to get that bump under 100Hz?

 

[vulejov]

Final XO version..

 

[vulejov]

Small Changes

 

[Mario Pankov]

Hi there,
Are you using a bigger box to get that bump under 100Hz?

Yupp and higher port tuning. Its a trick that makes a speaker utilizing small woofers sound dynamic. Exploited by about any manufacturer.

 

[vulejov]

First simulation, pair of AL130 units in 35L box, port tuning about 40Hz.. second 35L-50Hz..
In measurements you can see room modes, far from ideal simulation, Fb-37Hz..