Modding Neovibe for line level input

[perfectsoundforever]

Hi! I was trying my Neovibe with some synths the other day and it really surprised me how sweet it sounded. The problem was that I had to attenuate the signal a lot to avoid clipping... How could I mod the pedal to avoid this clipping? I assume it's happening in the preamp section, would omitting everything including Q3 work?

http://www.generalguitargadgets.com/pdf/univibeschm.pdf

Are the signals feeding C5 and C6 the same but with opposite phase? If so, could I use an op-amp to invert the signal going to C5 and feed C6 (and C18) with the original signal?

Sorry if I'm going blind here... and thanks in advance for any help!

[Kipper4]

Maybe something like this will help. (Thanks Slacker)

http://www.cgs.synth.net/modules/cgs60_sba.html

[perfectsoundforever]

Maybe something like this will help. (Thanks Slacker)

http://www.cgs.synth.net/modules/cgs60_sba.html

Thanks for the link. I'm aware of that solution, but I also think there is a simpler option... Also, that requieres a dual powe supply, so wouldn't work on the Neovibe design 

[JerS]

Why not just add a resistor in line with the input of the Vibe - like a pad. You could have it on a switch - that way you could still use the Vibe for guitar too. You would have to fiddle with the value to get the correct level of attenuation.

[perfectsoundforever]

Why not just add a resistor in line with the input of the Vibe - like a pad. You could have it on a switch - that way you could still use the Vibe for guitar too. You would have to fiddle with the value to get the correct level of attenuation.

The problem with that is that I'd get a volume drop with bypass.

I could experiment bypassing the preamp section, but one thing I don't understand is which signals should I feed the circuit at C5 and C6... Is it just the same signal inverted? I was reading the Technology of the Univibe article but couldn't really understand that... http://www.geofex.com/article_folders/univibe/univtech.htm Could someone check that out??

Thanks for your help!