EQ split drive idea

[acehobojoe]

Here's the Schematic.
http://i.imgur.com/uJitpU5.png

It is basically a drive where the bass and treble are split, for different reactions. I haven't had a chance to tweak it a lot, but I think I'm on the right track.

I started out with a buffer splitter, so that I could split the signal into two in a clean way.

I then made one have a lowpass RC network with a 10nF to ground, giving it a corner frequency of about 200hz.

Then I made another with the exact opposite, only passing the highs above 200. It makes for a really clean cut sound.

They both go into their respective overdrives. They both use a j201 at the end, my idea is to give the bass a little less gain with a dual pot or something. The j201 kind of simulates a tube, as we all know.
The treble side overdrive was given some mosfets (could change to zeners) to ground, and a saturation control. Both of these ideas were from AMZ.

The idea is that the tube sounding distortion is "warmer" and the treble will handle diode clipping a lot better. I could even move the bass response down a bit to allow for some notching of 200hz range where the "mud" is.

Still need a lot of testing, and I'm sure I'm going about things in an inefficient way, but any thoughts or ideas are appreciated.

[blackieNYC]

this is an awesome road to go down.  I hope to find a perfect metal sound with this method.
I made a very mild overdrive recently that friends have been trying to buy from me.  The highs get "fetzered" twice, once by a J201 with less headroom, the bass goes thru a 5457 with a higher Vgs, so it stays a little cleaner.  Very nice jangly sparkle.  Then I ended up adding clipping diodes with a pot adjustment to the highs only.  A really useful sound.  basically a BMP filter as a crossover.  I'm going to put yours on my list.
Then of course one could go over the top and make the thing a crossover/splitter & mixer/blender with jacks to use different dirt on each.  too much.  but maybe a little option here and there.

[Gus]

FWIW
I posted in the past about a jazz crossover I built for a friend.  I found you need to not think crossover think more overlap.  When I built the first version I set both the high and low pass at the same frequency.  This did not sound right then I tried different lowpass and high pass frequencies.  This sounded much better.

a link to another circuit http://moosapotamus.net/paralooper.html

[blackieNYC]

You liked more overlap than notch Gus, when splitting to two different fuzz circuits? I think I kept the BMP notch in mine, but it doesn't seem to be there when i do a sweep.
The beastly looking thing in my profile photo is a two channel splitter blender.  I put a LP switch on one and a HP on the other, but I'm using the loops for full bandwidth all of hte time.  Might make a simpler one but with a  high/low split.  The moosapotamus brass blender looks good.

[R.G.]

Look up "Anderton Quadrafuzz".

[acehobojoe]

I'll let you all know how it goes!