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High Pass Filter (HPF) and Low Pass Filter (LPF) Mega Thread

This may have been covered elsewhere in the thread, but I've not seen a product that does what I want. I'm looking for a pedal. Ideally this pedal would have both an HPF and an LPF (ideally independently adjustable for each, but fixed values could be okay) and also includes a separate footswitch for each filter. The Broughton H/LPF is great, but it only has a footswitch to engage/disengage both filters simultaneously.

You might be able to talk Josh into modding one so that the hpf is always on and the footswitch engages the lpf.
 
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I'm surprised that HPFs aren't more...mainstream. Like, why isn't this a feature in my Carvin bass amp? It has every other doggone thing you can imagine. And why does't Boss or Behringer have these for $50 on Amazon? Maybe I shouldn't be surprised. I've bee playing for 35 years and I only just recently got an itch to get one.
 
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I'm surprised that HPFs aren't more...mainstream. Like, why isn't this a feature in my Carvin bass amp? It has every other doggone thing you can imagine. And why does't Boss or Behringer have these for $50 on Amazon? Maybe I shouldn't be surprised. I've bee playing for 35 years and I only just recently got an itch to get one.
I think there would be a lot less blown speakers if more amps had them.

Mesa @agedhorse put an adjustable one in the D800+. Many amps have a fixed HPF installed but it's not advertised.

Seems to me that all amps will have an adjustable HPF/LPF eventually.

It assists the eq process that every bass bass player goes through to get good tone at different volumes, venues, stages and setups.
 
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I'm surprised that HPFs aren't more...mainstream. Like, why isn't this a feature in my Carvin bass amp? It has every other doggone thing you can imagine. And why does't Boss or Behringer have these for $50 on Amazon? Maybe I shouldn't be surprised. I've bee playing for 35 years and I only just recently got an itch to get one.
Hypothetically speaking.
How would you market a "musical instrument effects pedal" that works best when you can't hear it?
Or try and sell something to bassists that cuts low end?
The small subset of bassists that exists here on Talkbass are far more educated about tech than the vast majority of musicians IMO.
And the vast majority of them are far more educated about MI tech than the marketing department of MI manufacturers believe them to be.
What advertisers don't know, is what you and I don't know.
That's before you take into consideration the ******** those departments often (not all) spew about their cabinets. Which they won't admit are all handicapped in the subbass range for practical reasons.
 
Hypothetically speaking.
How would you market a "musical instrument effects pedal" that works best when you can't hear it?
Or try and sell something to bassists that cuts low end?
The small subset of bassists that exists here on Talkbass are far more educated about tech than the vast majority of musicians IMO.
And the vast majority of them are far more educated about MI tech than the marketing department of MI manufacturers believe them to be.
What advertisers don't know, is what you and I don't know.
That's before you take into consideration the ******** those departments often (not all) spew about their cabinets.

Hey - I resemble that remark!
 
Hypothetically speaking.
How would you market a "musical instrument effects pedal" that works best when you can't hear it?
Or try and sell something to bassists that cuts low end?
The small subset of bassists that exists here on Talkbass are far more educated about tech than the vast majority of musicians IMO.
And the vast majority of them are far more educated about MI tech than the marketing department of MI manufacturers believe them to be.
What advertisers don't know, is what you and I don't know.
That's before you take into consideration the ******** those departments often (not all) spew about their cabinets.
Call the HPF a speaker protector or distortion destroyer or rumble reducer or mud masher or some other more colorful name.

People will understand.

AND, you CAN hear what an adjustable HPF does. :thumbsup:
 
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I think I'm going to contact Carvin again and tell them they should be including this in future bass amps. The one I have right now is amazingly feature-rich, especially for the price I paid for it.

Carvin has been out of the amp business for a while now, do you know something we don't?
Yel_wink.gif
 
Hypothetically speaking.
How would you market a "musical instrument effects pedal" that works best when you can't hear it?
Or try and sell something to bassists that cuts low end?
The small subset of bassists that exists here on Talkbass are far more educated about tech than the vast majority of musicians IMO.
And the vast majority of them are far more educated about MI tech than the marketing department of MI manufacturers believe them to be.
What advertisers don't know, is what you and I don't know.
That's before you take into consideration the ******** those departments often (not all) spew about their cabinets. Which they won't admit are all handicapped in the subbass range for practical reasons.
Endorsements and print/web adverts with waveform images for comparison.
 
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Call the HPF a speaker protector or distortion destroyer or rumble reducer or mud masher or some other more colorful name.

People will understand.

AND, you can hear what an adjustable HPF does. :thumbsup:

I had a guitar player who would have scoffed at the very idea of adding a HPF to his rig. "But it messes with my tone!" His precious tone... so thumpy and bottom heavy I may as well have not showed up to practice at all most days.

The rest of us all did everything we could to get him to turn down the low end on his amp, but he was downright indignant about it. And this is a lifelong friend of over 30 years that I've literally been playing music with for almost 20.

I would get to practice early just so I could tweak his EQ ever so slightly each day. Just a hair so he wouldn't notice... everything was going fine until I realized I was adjusting the wrong channel all along. :p

I even went so far as to buy a Tubescreamer, famous for it's low-end roll off, and gave it to him as a gift. He hated it because it "sucked out all the beef" from his precious tone. Beef which was messing up our entire mix and causing everyone to have to turn up to be heard. I even contemplated hiding my Broughton in the FX loop of his combo, but couldn't figure out how to power it without him noticing.

Somehow I talked him into buying a Telecaster, which was at least clearer and brighter and less bassy than his humbucker-equipped guitar. But cutting low end at the amp... absolutely out of the question! Turning down the gain and playing cleaner? Even more out of the question!

Oh, and to top it all off, he loooooved using his neck pickup for almost everything. Mud city!

So I would say no, not everyone will just magically understand. Most people have a very pre-conceived notion of what they think they should sound like, and everyone else, and the mix they rode in on, be damned.

My greatest joy in that band was highpassing the crap out of his guitar tracks when mixing our basement jams. "Oh yeah! Sounds really great! Nice work on the mixing!" :p :)
 
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Call the HPF a speaker protector or distortion destroyer or rumble reducer or mud masher or some other more colorful name.

People will understand.

AND, you can hear what an adjustable HPF does. :thumbsup:
I agree with you completely people are ready for these tools to be mainstream now. Consumers are more capable of becoming informed than ever the trick is showing them where to look.
The only way I see this sort of thing becoming mainstream is for Zoom and DOD or Mooer to start producing these products.
Though that kinda crushes my soul. Right now these tools are provided by small businesses who operate in a niche that large manufacturers currently don't. Small business which I'd rather give my money to.
 
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Though that kinda crushes my soul. Right now these tools are provided by small businesses who operate in a niche that large manufacturers currently don't. Small business which I'd rather give my money to.

I feel ya on that one. On the other hand... I'm just getting back on my feet after a period of semi-employment this summer. I've been so frugal that when I had a look at my refreshed bank account I went on a little gear spree. A used GK 112 cab for apartment practice, a replacement 15 driver for the one I blew earlier this spring, and as of yesterday an impulse buy of a used Pork Loin. I'm probably geared out for the month. There will be no $95 HPF for me...at least for a few weeks :)
 
Bear with me.. I’m really trying to understand this h/lpf stuff.

So my main rig I use an inuke power amp with dsp. One of the first things I ever did was set a custom EQ that rolls off (24db slope iirc) everything below 30hz (low B-ish) and everything above 5000hz (I don’t use tweeters) as the drivers really can’t reproduce that anyway. Just seemed like good warranty against damage.

Isn’t that basically what this is all about? Fdeck or Broughton et al basically do that kind of shelving to the signal independent of an amp doing the same thing?
 
Bear with me.. I’m really trying to understand this h/lpf stuff.

So my main rig I use an inuke power amp with dsp. One of the first things I ever did was set a custom EQ that rolls off (24db slope iirc) everything below 30hz (low B-ish) and everything above 5000hz (I don’t use tweeters) as the drivers really can’t reproduce that anyway. Just seemed like good warranty against damage.

Isn’t that basically what this is all about? Fdeck or Broughton et al basically do that kind of shelving to the signal independent of an amp doing the same thing?

Yes, but high pass filtering is a different curve from a shelving EQ.
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Sorry whoops I used the wrong term.. but otherwise I’ve got the gist?
Honestly, it's probably just as good in most situations. However, I enjoy the convenience of the dedicated boxes...I like tweeter freqs on upright but not electric bass, and Broughton's separate boxes allow me to do basically the same thing simply and easily.