Reducing LF

[burmeister]

Is there a way to reduce the LF in a full range speaker?
Filter or crossover perhaps?

Thanks

 

[R Kneck]

Put it in a sealed box?

 

[rayma]

If open baffle, a smaller baffle. If sealed cabinet, a smaller volume, or open baffle.
Much simpler is a series bipolar capacitor, for a high pass filter.

 

[chris661]

Much simpler is a series bipolar capacitor, for a high pass filter.

Not necessarily.

Might be counter-intuitive, but a series cap can actually increase LF output at and just below the impedance peak of a sealed box.

You'll need to put a low-value resistor (lossy) across the speaker before a series cap has the desired effect.

Chris

 

[burmeister]

Put it in a sealed box?

I am leaning for open baffle use with 15 inch woofer. Reduce the lf from fr so less strain for the driver

 

[burmeister]

Not necessarily.

Might be counter-intuitive, but a series cap can actually increase LF output at and just below the impedance peak of a sealed box.

You'll need to put a low-value resistor (lossy) across the speaker before a series cap has the desired effect.

Chris

The problem i have right now are the parameters for the FR. fostex fe203 @16ohms. I sent an email for parameters but unfortunately they dont have it since it was discontinued product 1970’s.

Can you elaborate further your recommendation thru diagram. I apologize for being slow.

Thank you

 

[chris661]

You can measure T/S yourself. You'll need a USB audio interface, a couple of cables, and a 100ohm resistor.

Chris