Mid range to Full Range Conversion.

[srkhan]

I simply want to extend the cutoff range down so that the satellites become full range speakers.

The woofer is 8ohm and tweeter is 4 ohm.

i attach the crossover diagram bellow

 

[picowallspeaker]

Hi, you obviously failed in designing the crossover circuit-
It happens to me either !
The 200 uF cap could be seen as an high pass component, but it could work together with the woofer's load -is it a closed box ?
Edit: uuhh, sorry: you crossed the outputs so I was watching at another thing!
So the circuit is right...mmmh, maybe the 16 uF cap is after wooofer's inductor ? The white thingy is a resistor

Still missing the Bennic MPK cap that is obviously in serries with the tweeter....check that out !

 

[srkhan]

it is closed BOX. which one to remove for full-range out put?

 

[picowallspeaker]

Try to remove the big cap at the input. It could happen that the box makes LESS bass
because of it's interaction with woofer's impedance characteristic being in closed box.

 

[srkhan]

this is a satellite speaker that comes with GIGAWORKS S750. crossover network is built in for mid and tweeter.

I want to make this satellite mid-range speakers to a full range speaker with some DIY!!

i dint make any modifier yet! i just open the box and got scared!

 

[picowallspeaker]

There are some considerations to do:
Maximum input level will be lower > because the woofer will find its excursion limits when asked to play below 100 Hz or so ( 70 ish )
The air load would be then insufficient; the box itself will be shaken more by
lower frequencies.

 

[PeteMcK]

short out the inductor in series with the woofer... and listen for cone break up...
what is the cone material?

 

[sreten]

Hi,

You could bypass the 200uF and see what happens.
Bypassing the inductor is pretty pointless.

rgds, sreten.

 

[srkhan]

can i insert a "Port Tube" for better result? if so than where? font side or back side?

 

[picowallspeaker]

... when asked to play below 100 Hz or so ( 70 ish )
The air load would be then insufficient; the box itself will be shaken more by
lower frequencies.

Is it too complicate

 

[sreten]

can i insert a "Port Tube" for better result?
if so than where? font side or back side?

Hi,

No you can't.
They will never do proper bass.
They are not designed for that.

rgds, sreten.