Low pass filter pedal (not what you're thinking)

[Oreomeister365]

I am interested in a pedal that functions as a low pass filter. Not the funky type that sweeps through a range, but rather the type that one would use on a track when recording an album - to reduce the high frequencies that get through. A low pass filter basically means you can control the cutoff frequency meaning all the frequencies from 20Hz all the way up to X Hz (x being whatever you want) get through, anything above that is removed from the signal completely.

Do these exist in pedal form? I know certain preamps can (heck, the one in my bass can).

As I'm sure many of you know, overdrives sound like butt through a tweeter, but I like the tweeter on for my clean tone. I have an overdrive in a blended loop, and I certainly like it, but it's a full range signal that goes through the tweeter. Now without doing all the proper research on if this will even work in the first place, I would like to put a low pass filter in the loop with the OD, so I can have my clean signal be full range, but the overdriven signal be cut off where the tweeters frequency begins.

Any help would be appreciated.

[Jared Lash]

Both the Moog and the IE Xerograph can do exactly that.

Both pedals CAN sweep the frequency with expression control of cutoff and both CAN be envelope filters but you can set the envelope control to zero and eliminate that functionality. Or just get the normal non-deluxe Xerograph that doesn't have an envelope filter at all.

[Unrepresented]

There are a number of eq pedals that should at the least provide a significant db drop on any frequency range you're looking to cut, if not a complete elimination, I'll bet it'd come close enough for your sonic needs.

[Jared Lash]

Just another thought. You may have other reasons for having an overdrive in the blend loop but if not you could always talk to a builder and see if they'd do a custom overdrive for you.

Building one that includes a clean blend and a low pass filter (especially if the cutoff point is fixed and you don't need any resonance) shouldn't be horribly difficult.

[Oreomeister365]

Thanks for the replies!

At the moment I do have an EQ pedal in the OD loop, and while setting the top frequency or two to cut as much as possible certainly helps a lot, I'm looking for a more tweakable and precise solution, since I doubt any of the frequencies on the EQ are exactly where the tweeter cutoff is, and I want the speakers themselves to be as full range as possible. I'm a little bit anal about it I guess, since by all means cutting the EQ works quite well

Does the fellow at IE do any customized orders? I was thinking I'd ask for a xerograph with nothing but the frequency knob. Not sure if it'd even be called a xerograph at that point. I want an excuse to put one of those awesome looking pedals on my board.

[Matt Dean]

I believe Taylor at IE does custom work.

[Eric!]

this is the "standard" version

He's done custom stuff before, which is the beauty of HANDMADE EFFECTS. Dunno how busy he is lately...
Honestly you might enjoy the resonance knob more than you think!

[maniac mikej]

I have an EHX Knockout pedal. It has a low-pass and a high-pass filter built in. Thing is AMAZING

[Toastfuzz]

DoD FX25 is another envelope filter that is more widely used (at least among bassists) with the sensitivity turned the whole way off, so it never starts enveloping, just works as a total lowpass. These pedals must bump up the bass too, because the FX25 is the go to "deep dub" pedal. If I could get a DoD FX25 that had a Volume knob instead of Sensitivity (with sensitivity being set at the bottom internally) I'd be in dub heaven. Right now engaging my FX25 drops the volume to much to be switched on/off live, when I play with the dub reggae dudes I leave it always on and bring up the volume on my amp.

[Jared Lash]

I love the FX25, especially for dub stuff, but it has no frequency control at all so I don't think it'd be a good pedal for this application.

Oreomeister, if you do go the Xerograph route I'd just order a normal one. If you don't have a use for the resonance knob you can just turn it to zero. But having it means extra functionality if you ever DO want to use for wah like or synthy sweeps AND if you for some reason decide not to keep it long term you'd have an easier time selling it.

[dannybuoy]

The Markbass VLE (vintage loudspeaker emulator) control is basically a low pass filter:



Plus this gives you a boost pedal and DI box all in one!

[Unrepresented]

There's a product called the thumpinator that does what you're looking for with a couple conflicting details.

1) it's voiced to cut ultra low end eq rather than ultra high.

2) I believe it's a set value rather than adjustable.

The good news is that I believe it was a commissioned piece by a talkbass member, and the builder (sfx?) was a member here as well. It'd be custom work but on a design that'd already been proven which could help to decrease turnaround/cost for a custom.

[Oreomeister365]

Well I thank everyone for the help: it looks like I'll be getting the xerograph somewhere down the road. I sent an email and Taylor replied very quickly and thoroughly. The frequency range is 30hz to 10k, which is awesome.

I'll be able to choose between 12 and 24db per octave of attenuation with it, which may help simulate a tweeter turned to zero (since just because a tweeter is turned off doesn't mean those frequencies disappear altogether...)

[reddi]

Originally Posted by Jared Lash

Both the Moog and the IE Xerograph can do exactly that.

Both pedals CAN sweep the frequency with expression control of cutoff and both CAN be envelope filters but you can set the envelope control to zero and eliminate that functionality. Or just get the normal non-deluxe Xerograph that doesn't have an envelope filter at all.

I need to pick up that IE Xerograph!