Anyone care to look my schematic over?

[punkin]

Here's the deal...I'm trying to build something of a hybrid booster with distortion. It's a Mockman with Vox tone stack and a recovery stage. It sounds great as drawn. You'll notice a parallel clean boost. The idea was that I would like to switch out the Mockman circuit and have a clean boost with the tone stack.

When I bread boarded just the clean input (J201) driver stage with the Vox tone stack is sounded great...very clean...however to get the levels to match when switching in/out the mockmock man I still need the final boost circuit. That's when my clean sound gets a rather over-driven sound. I'd like to clean that up if possible.

Have a look, I appreciate any comments. Again, the Mockman+Vox+recovery sound great...the parallel "clean" ciruit isn't as clean as I'd like it.

Thanks!

http://home.comcast.net/~spl-studios/pwpimages/VoxManAbomination%281%29.bmp

[caspercody]

I'm new to this stuff, but looks like you are using a Tl072 ic?

No volume pot?

[Radamus]

I think the volume pot comes before the tone stack.

[Ripthorn]

If you want more headroom, I would say just run it at higher voltages.  You could voltage double your battery and that should get you a lot more clean headroom.

[punkin]

yep...the variable pot just before the tone stack acts as a volume control. More voltage hmm...I'll give that a try. Was hoping to get away with 9VDC but it's worth a try to see what it brings to the party. Thanks all!

[jonfoote]

i would have thought your problem was that your clean boost is running 2 boost circuits which is causing clipping.
i would try taking out the first clean boost, have the clean go into the tonestack 1st and then the final boost.
use a trim pot to balance the volume difference between the o/d and the clean before the tonestack, depending on which one is loudest

good luck

[Ice-9]

+1 for Jonfoote

It could be that you are driving the gain recovery J201 too high creating the drive in the recovery j201. Worth a check

[earthtonesaudio]

The tone stack is loading both circuits down.  This will make the controls more interactive (which may or may not be good), but it will also increase compression and reduce volume and headroom. 
Since you like the sound of the overdrive channel as-is, I'd recommend a buffer between the clean boost and the tonestack.  This will keep the JFET from being loaded down, reduce interactivity between the controls, drive the tonestack harder with less loss, and allow you to reduce the make-up gain.

[punkin]

Terrific suggestions, gang. I really appreciate it. I'll got at the breadboard mess this morning.

Thank you to all of you for the suggestions 

[punkin]

THANKS YOU GUYS!

I ran with a couple ideas you guys put up for me. Big thanks to earthtonesaudio and liquids This thing sounds great! I've got a clean boost and the grittier mockman and both channels have the advantage of the VOX tonestack. Perfect! Ultimately, I've made two buffers...one at the output of the Tone stack and another at the output of the clean J201 circuit I also made the clean channel look more like the DragonFly Sparkle...really opened up the sound and gives it a lighter "lift" if you know what I mean.  A few more parts than I thought I would need but it works like a charm! Another circuit worthy of it's very own box.

I've always had this notion of an "all-in-one" box instead of the usual one-trick pony stomps. I really like this...maybe before I package it up, I'll try to shoe-horn a fuzz circuit in there too and...oh a compressor 

[earthtonesaudio]

Congrats!   

[budjb]

Mind posting the final schematic?

[punkin]

I'd be glad to. I'm travelling this week but as soon as I get I'll get right on it.

[budjb]

Thanks