Here's FXDB's interview with Dario Romanelli of Mastro Valvola:
How did Mastro Valvola start?
The construction activities of the pedals was born out of the union of my passion for guitar and my studies in electronics.
"Valvola" comes from the passion for the vacuum tubes and "Mastro" is a synonymous of artisan.
The logo stands for 2 things. First of all it's a mouth with the upper lip that represents the letter "M" and the lower lip that represents the letter "V", the initials of Mastro Valvola. But the letters also look like sine waves.
Can you tell us something about the production process?
The circuits are a mix of PCBs and hand-wiring. The enclosures are custom steel boxes with adhesive labels.
How important is the look of your pedals?
Is parts selection important?
We pay attention at the quality of components, because we want the best sounds.
We also pay special attention to the endurance and sturdiness of the products.
Which of your pedals is the most popular?
The most popular product is the Smog overdrive. A very warm sounding, very transparent and versatile overdrive. Also used by many famous bassists.
What does the future of Mastro Valvola look like?
The next pedal that will probably come out is an optical compressor. Is still under development but almost ready.
We are also working to a serious series of demonstration videos of products.