Subsonic filter 80 hz

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Hi , i have been reading on the internet about subsonic filters. In my opinion it have 2 advantages.

1. It will reduce excursion off the speaker.
2. I will cost less energy because low tones will be gone.

The problem is that I can't find some filters. Does somebody know something about It.
 
I believe you mean infrasonic filter, also known as rumble filters. They will not reduce the bass unless you actually mean a high pass filter (higher up the frequency spectrum), which will do what it sounds like you want. They can be a s simple as a cap and coil or you have the option of going active (powered by electricity)

Thanks for the info. If I use a cap and coil it will decrease bass but not the power because the bass won't go tru the speaker but it will tru the cap and coil.

If I do it active I change the input signal on the amplifier and will me cost less energy.

Correct me if i'm wrong

Greetz
 

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OK if they are Chinese watts.

The spec says rated power 10W and maximum power 20W. I assume that means that at 10W it begins to overheat and at 20W it falls apart. I find even those figures hard to believe for a 2" driver.

PS it describes itself as a 'subwoofer'. Something which starts from as high as 75Hz is a woofer; if it were any higher it would be midrange.
 
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OK if they are Chinese watts.

The spec says rated power 10W and maximum power 20W. I assume that means that at 10W it begins to overheat and at 20W it falls apart. I find even those figures hard to believe for a 2" driver.

PS it describes itself as a 'subwoofer'. Something which starts from as high as 75Hz is a woofer; if it were any higher it would be midrange.

Maybe the good old 'Music Power' watts as beloved of many 'Computer Speakers' :)

Have to wonder what max cone excursion theyy have ?
 
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OK if they are Chinese watts.

The spec says rated power 10W and maximum power 20W. I assume that means that at 10W it begins to overheat and at 20W it falls apart. I find even those figures hard to believe for a 2" driver.

PS it describes itself as a 'subwoofer'. Something which starts from as high as 75Hz is a woofer; if it were any higher it would be midrange.

If I put a highpass filter on it ( between 60 and 80hz) a lot of power is going away, also 100 watt is a bit to far but 50 watt must be possible
 
to the OP:
I don't really understand what you mean by '100W'.
ie are you filtering the pre amplifier signal or at the speaker itself ?
What is the signal - White / Pink Noise ?
How do you know it's '100W' ?

Not meaning to be over critical - I get that you want to filter out the bottom end as lots of energy there which won't be reproduced by the speaker and is a danger to it. I do the same thing on a different scale with bass guitar amplification to cut out the 'thumps' etc.
 
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