...ok...I start to solder!!!! sei grande!!

With a passive tonestack  there isn't too much drop of gain?

"Piano, piano, si va lontano" 
you speak Italian?

Quote from: J M Fahey on December 10, 2009, 10:16:32 AM
Hi/Ciao Checco. A Ruby amp,http://www.runoffgroove.com/ruby.html ,  with it's Fet high impedance input makes a good preamp, if you use it without the 1K gain trimmer/pot.
It becomes a 20x gain clean preamp. On its output, instead of a speaker you can hook a 1Kohm resistor and reduce the output capacitor from 220uF to 10uF.
You can get 9V from the +35V LM3886 supply with a 1K1W resistor, a 9V Zener and a 100uFx25V capacitor.
If you find it confusing, I can draw a schematic.
Ciao amico e buona fortuna.

Oh thanks!!!
according to you can I add an active tone stack? like a baxandall? what's its position? Or I need just a passive tonestack?

sorry...for writing in Italian, the translation by fahey is correct...but my question is still unanswered...

..e no...ero così conento che una persona mi avesse risposto.... :lmao:

mannaggia sto inglese, che non riesco a far capire una cippa a nessuno....

intanto mi sono documentato...ho in mente una bella cosuccia...ci sentiamo su fennec..... :tu: :tu: :tu:

Hi to everyone!!! my name is francesco, I'm from Italy...

I need a preamp for acoustic guitar (with tone stack too) , I think to use a LM3886 for the power stage....

what do you think about?