Xover to filter woofer SB 23NRSX45-8

[merlin el mago]

What do you think of this schematic received in a Spanish forum?

An externally hosted image should be here but it was not working when we last tested it.

 

[merlin el mago]

Attached frequency response to txt file

 

[GDO]

Ok, but this is what you already sent, frequency response data not the impulse file, thats why i could not open it in Arta...😀

 

[GDO]

Ok, but this is what you already sent, frequency response data not the impulse file, thats why i could not open it in Arta...😀

Btw, if you export that way the phase is not exported. You need to do the following before:

* Set Minimum phsase in the View menu

* Check you select M+P (magnitude + phase) down at the left of the screen

* This will create and .frd extention file you can change to .txt to upload here.

 

[merlin el mago]

https://www.dropbox.com/s/89lebj0zlp5sljx/SS8545%20%2B%20SEAS%20FR%20MEDIO%20SALON%20SIN%20HPF%20SOLO%20FILTRO%20CELEDONIO.Pir?dl=0

https://www.dropbox.com/s/2690jsm06apmc3s/SS8545%20%2B%20SEAS%20IMPULSE%20MEDIO%20SALON%20SIN%20HPF%20SOLO%20FILTRO%20CELEDONIO.pir?dl=0

https://www.dropbox.com/s/3gqdmf7dijj8a14/SS8545%20FR%20MEDIO%20SALON%20SIN%20HPF%20SOLO%20FILTRO%20CELEDONIO.pir?dl=0

https://www.dropbox.com/s/azr2gkd9idcltzj/SS8545%20IMPULSE%20MEDIO%20SALON%20SIN%20HPF%20SOLO%20FILTRO%20CELEDONIO.pir?dl=0

 

[GDO]

What do you think of this schematic received in a Spanish forum?

An externally hosted image should be here but it was not working when we last tested it.

As commented before main issue is you cannot cross the SBA so low without getting a big bump under 100hz because of its impedance peak at resonnance.

 

[merlin el mago]

Ok, but this is what you already sent, frequency response data not the impulse file, thats why i could not open it in Arta...😀

Btw, if you export that way the phase is not exported. You need to do the following before:

* Set Minimum phsase in the View menu

* Check you select M+P (magnitude + phase) down at the left of the screen

* This will create and .frd extention file you can change to .txt to upload here.

Forum can't accept to attach *.frd files, I send as zip.

 

[GDO]

Ok, i could download the pirs from dropbox.🙂

I think this might work without redesigning the whole thing.

May be removing the atenuation on the tweeter will help too...🙄

 

[merlin el mago]

The Seas and the SS in phase, the SBA out of phase.

 

[GDO]

The Seas and the SS in phase, the SBA out of phase.

¿Mandé?🙄

 

[merlin el mago]

A sus ordenes

https://www.dropbox.com/s/d36vcj35f7qz73j/SS8545%20FR%20punto%20escucha%20%20SIN%20HPF%20%2B%20filtro%20gdo.Pir?dl=0

https://www.dropbox.com/s/sf1z90d41hkcmjz/SS8545%20IMPULSE%20punto%20escucha%20%20SIN%20HPF%20%2B%20filtro%20gdo.pir?dl=0

 

[merlin el mago]

Looking at the pictures I guess I have to add the LPF to the SS....

 

[merlin el mago]

Are the drivers connected as attached pic?

 

[GDO]

Sorry if i did not make myself understood... D1 is the SBA and D2 is not the SS but the whole monitor.

I have loaded for D2 the FR of the monitor from your measurement and as you can see the tweeter is present.

If the monitor should be redesigned all 3 drivers with the full xover would be necessary.

 

[merlin el mago]

Measurements post 151 are without the SS LPF so aren't good.

 

[GDO]

Measurements post 151 are without the SS LPF so aren't good.

Don't understand what you measured and what for?😕

What SS LPF are you talking about? Do you mean HPF?

 

[GDO]

From pir file in post 151.

Don't know what it is, but it seems clear that changing the polarity on the woofer things will get flat...

 

[merlin el mago]

My fault, measurement done without the SS8545 LPF, attached pic of SS8545 LPF.

 

[merlin el mago]

Measurement done only with the attached filters

 

[merlin el mago]

Tomorrow I will measure including the SS8545 LPF.