That's why most bass amps have shelf filters with their bass knobs. Just tad of cut and you are in home. Same with bass synths.
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Zorg effects from France:
Pedales : Küth
I have the Vong Filterung, but the builder ended the project. It's a great tool.
Yes, and for that reason I think an HPF is about 1000x more useful for upright than electric, but it can still be useful for EBG as well.
1. Too strong signal? How you can do that from bass guitar? And especially passive one? 2nd harmonic is where amplitude of the note is the highest way below subs (even for 5 string bass). It's almost impossible to do thatDo you think that bass cab manufacturers don't know that?
2. Amp will wont waste power for useless frequencies if you don't crank them up. Simple as that
3. Shroeder freq. Is way above subbass. Mainly 200-300hz so you don't use HPF that high anyway.
Sorry but to blow away your cab you have try realy hard to make it come true. Same with reduce unwanted freq which bass not produce. Not mention amp. If you don't boost you won't add gain to that frequencies. And bass lives in mids + what I write above. Of course you can use HPF - it's up to you and I'm the last person who will forbid anyone to use it, but as I said above, it's 9/10 useless anyway.
The answer to #1 is by boosting the bass knob. Bass cab manufactures do know this and (the good ones) take it into account when they determine the power rating. Some even recommend using an HPF.
It's not hard or nearly impossible to damage a speaker. That just depends on the specific cab and amplifier.
1. Too strong signal? How you can do that from bass guitar? And especially passive one? 2nd harmonic is where amplitude of the note is the highest way below subs (even for 5 string bass). It's almost impossible to do that
2. Amp won't waste power for useless frequencies if you don't crank them up. Simple as that
3. Shroeder freq. Is way above subbass. Mainly 200-300hz so you don't use HPF that high anyway.
Sorry but to blow away your cab you have try realy hard to make it come true. Same with reduce unwanted freq which bass not produce. Not mention amp. If you don't boost you won't add gain to that frequencies. And bass lives in mids + what I write above. Of course you can use HPF - it's up to you and I'm the last person who will forbid anyone to use it, but as I said above, it's 9/10 useless anyway.
I gather you have never used one live? If you have you might reevaluate your position.
Most amplifier designs incorporate some sort of HPF (some are tunable or selectable). Often a combo (speaker/amp) would have a better tuned system to deal with these frequencies but a amp head typically does not and is wholly dependent on the drivers you choose to use, which may or may not be able to handle excessive bottom end load.
An HPF might help if you're having any issues with rumbling on stage.
They do help the amplifier run a bit more efficiently so that the amp need to waste energy trying to reproduce unwanted low frequencies.
But how much you must boost your bass? 10db? 20db? You don't have ears or what?
Which normal human being do that? LOL. Which one recommend using HPF? I never heard anyone of bass amp manufacturer to encourage users to use HPF. IF YOU KNOW WHAT YOU DO IT'S POINTLESS. IF NOT YOU BETTER LEARN HOW EQ WORKS. And I'm not shouting 
Just emphasize obvious thing Man! I play on bass for 16 years now and I never blow up speaker, have distorted sound or any of BS you talk about here. I just use my eq to eq my tone not to destroy my gear. LOL. If you boost lows, gain and volume all the way up then you have it. But, again, probably only insane people will do that LOL.
But how much you must boost your bass? 10db? 20db? You don't have ears or what?
They're built into many higher end amplifiers and preamps (and tweakable) (Mesa for example)
OK, this person either does not read and comprehend, or is a troll. Either way, I am out.
But how much you must boost your bass? 10db? 20db? You don't have ears or what?
Dont need to shout!!
But seriously, you are barking up the wrong tree (or shouting at the wrong cloud as I sometimes am accused of)!
So why you are comment and even don't reply on my posts with any of your opinion? You are probably a troll then.
Ok. Mesa. Who's next? Nobody! That's the truth. And you still don't get it that if you don't crank everything all the way up you don't destroy your gear. LOL
Ok. If you won't explain me that what I wrote is not true then how we can discuss? You are not serious guys. I explain you everything above and I don't know what funny is that. I never heard that Pino, Vic or any of serious player use HPF because maybe one day he'll get fool and crank everything up and will bang his bass until blow up speakers and destroy the gear. That's the real funny thing! 3db boost or cut (which most of the time is enough) don't kill your sound and amp! Do you realy think that without this HPF box your sound will be worse than just learn how eq works and how to eq your sound for music/band? Because if you have a FOH he make the "room" job for you.
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Here's a place to start your knowedge base on amps with built in HPF's
Amps with built-in / baked-in HPF | TalkBass.com
Amps with built-in / baked-in HPF | TalkBass.com
Ok. I know it. But why use another HPF then if you have one built-in your amp? If you don't add enormous db to your low end you won't have ANY problems at all. Amps and cabs are built to last not just blow out because you turn some knob a little bit up or down! You still forget that bass amp and cab is not a PA system. It's suited for bass guitar so if you don't do anything stupid you have no problems. Is that still not obvious?
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It isn’t just about the bass amp and cabinet performance. A HPF does help protect the speaker.
In a band mix, a HPF can make the bass louder. You hear the harmonics, the bass cuts through. Without the HPF, the bass frequencies can blend with other low frequency instruments and make the mix muddy. It’s about helping to separate the components of the mix.
In a band mix, a HPF can make the bass louder. You hear the harmonics, the bass cuts through. Without the HPF, the bass frequencies can blend with other low frequency instruments and make the mix muddy. It’s about helping to separate the components of the mix.
An HPF lets you conture the low end of your signal much better. For example you can get a big boost at 80 - 160 hz whilst reducing the load on the speaker down in the 30 - 40 hz range. Hard to do that with a simple bass eq knob. A variable HPF also lets you easily adjust for live stage conditions that will vary from place to place. Take out any subsonic frequencies while maintaining your bottom end is much easier with an HPF.
