My name's Vinicius and I'm from Brazil.
I used to use pedals from Boss, Sansamp. Recently I'm, using some boutique pedals (handmades). They're modifications of the best pedals of the world. The price is very cheap and the sound is really amazing. Two of the best boutique pedals creators in Brazil are :
http://www.mroxy.com.br
http://www.efxpedais.com
Enjoy !
