Bass Amp Equivalent to the Ruby?

[lchyi]

Can someone link me to a simple, quality bass preamp schematic I can fit into a stompbox? Kind of like a ROG Ruby type build.

[SuperGeo]

maybe the bassman mods for littlegem would work? I don't know. 

[Mcgiver69]

You can try this one, it sounds very well and fits perfectly in a box.

http://img.photobucket.com/albums/v467/Mcgiver69/basspreamp.gif

[lchyi]

Maybe someone can draw up some quick mods to the ruby circuit for a bass amp? That'll probably help b/c I have all the parts setup for a ruby.

[jxoco]

I would change the .047 uf  (47nf) capacitor to .1 uf

I doubt you'll heard a difference though.
The speaker probably won't reproduce the bass because of the power needed at low frequencies.
It's only about a 1/2 watt amplifier...