Bass Pedal Need?? Is there anything out there like this?

[sevenisthenumber]

I need a pedal that will turn my bass into a super low end boost (50 hz boost with a High end cut). Kind of like a "key bass" sound. I wanna be able to do key bass songs on my bass instead of keys.... Any circuits that do this??? I have been using an envelope filter but its to hard to NOT get the wah sound when i dig in....

Any help is much appreciated!

[mrslunk]

What you need is a lowpass filter. 2-pole is good, 4-pole is better.
The lovetone meatball clone will do the trick, i've not seen any other DIY guitar/bass ones so far.
If you're feeling game, you could always find your favourite synth filter and convert it to bass territory.
I'm trying to get a 9v, bass freindly 303 filter going, but not having much luck atm. If you do, be sure to post schematics

[sevenisthenumber]

Very cool circuit... I really just want the filter with no wah abilities....

[g-sus]

EH Hogs Foot is a dark low end boost and an easy circuit to test to see if it suits you:

http://www.diystompboxes.com/smfforum/index.php?topic=30578.0

[sevenisthenumber]

Thanks..  I have built that...  I really need a filter/low pass thing.. not really volume boost..

[gigimarga]

I've just bought an Boss ODB-3, I made some very simple mods and it sounds amazing...I think that's the best bass fuzz/distortion that I heard

[markeebee]

Wouldn't a graphic eq pedal do it?  Boss does one for bass, and Behringer's version is about £20.

[markeebee]

Wouldn't a graphic eq pedal do it?  Boss does one for bass, and Behringer's version is about £20.

Or this, slightly modded maybe:

http://www.diystompboxes.com/smfforum/index.php?topic=84033.0

[MikeH]

Graphic EQ was the first thing that came to my mind too.  Not sure which bands you'd need, or how many, but that will allow you to isolate the frequency you're looking for.

You could also look into Parametric EQs too.

[Rodgre]

I'm in agreement that the trick is definitely a 2 or 4-pole LPF. I get this sound perfectly with a Moogerfooger Low Pass filter and some compression. The 4-pole filter will have a nice little hump at the cutoff frequency that will give you that big dubby bottom end. Great for organ pedal and dub bass tones.

Roger

[sevenisthenumber]

I'm in agreement that the trick is definitely a 2 or 4-pole LPF. I get this sound perfectly with a Moogerfooger Low Pass filter and some compression. The 4-pole filter will have a nice little hump at the cutoff frequency that will give you that big dubby bottom end. Great for organ pedal and dub bass tones.

Roger

Is there a DIY project like this?

[mrslunk]

The core of the mcmeat is a 2-pole state variable filter, which means that on the lowpass filter setting it will be a 2-pole lowpass filter.
now, you could replace the vtl modules with trimpots and scrap the whole envelope follower section if you wanted, but imho you'd be missing out on some awesome synth-bass sounding possibilities.
I don't know of any stompbox ready 4-pole filter layouts, however there was a discussion recently on it, have a search.

As a bassist who loves electronic music, and plays some sometimes. Trust me, you want the envelope control, (and even expression pedal control if posible) on your filter. Filter movement is part of what makes the filters sound tasty.
Build a mcmeat, it'll get pretty damn close to what you want on LPF setting. Plus, it'll do a whole bunch of other fun(ky) stuff.

If you wanna spend money, the Moog LPF is pretty much the only commercial option for that at the moment.
I did get wind of a dude making and selling some 4-pole LPF's on the talk-bass forums but....