The Doble tapa (Contreras style) was first introduced by Master Luthier Manuel Contreras the II at the end of the 70s and which reached its peak in the 80s. The word "Tapa" in Spanish translates to top in English but it refers to the back of the instrument. Therefore, Contreras doble tapa is actually a "Double back". I improved on the system by using a second back of Brazilian rosewood instead of Cedar and using lighter built pine transverse struts. The second consecutive back is 0.8 mm thick and the main back is 1.8 mm thick. Due to my geographical location, Brazilian rosewood is much cheaper to get than it would have been for Contreras. That is why I can afford to offer a doble tapa made entirely with Brazilian rosewood. This delivers a great response and much sturdiness to the back and sides which in turn enhances the full vibration to the top. The result is a full sound rich with innumerable harmonics and an AMAZING presence. I recommend you add the lower bout soundport. The guitar is engineered to work as it is but I know that the add on will enhance the sound even more. 

I made the recording of Romance in the presence of the builder and my son. The faces on both of them was worth an extra picture in the gallery. The sound on this guitar is simply ASTOUNDING !! Keep in mind that all the videos I post are made a few minutes after the guitar left the shop... in other words, it's a " new born" voice you are hearing. Based on my experience with my buyers I can imagine what she'll sound in a few months. What I know is that this babe ranks among the BEST we ever built and I think we are definitely going to build more of these tremendous guitars because they are as good as a guitar can get. A swift 640mm radiused action makes playing fun. Low strings action to make every passage easy.
Hopefully you'll be the lucky owner of this BEAUTY !

Brown PLUSH interior

Radiused or flat fingerboard?
The radiused fingerboard has been around the acoustic and the electric guitar since day one. The same is true for most instruments of the Stringed family of instruments (violas, violins cellos, bass). Radiusing (image above) makes barre and left hand stopping A LOT easier. The only drawback is that you will NEVER want to play a  flat fingerboard after that. If you are having your custom guitar built, I am all pro radiusing the fingerboard.  The standard fingerboard is flat.

The hand embossed leather case is a work of art on its own right. Built by one of a handful of very talented leather embossers in Latin America. 
Its built following my specifications for the interior to fit Bellucci guitars like a glove. All Plush interior, key and accessories compartment.

640mm or 650 mm?
Regarding 650mm or 640 mm fingerboard fret spacing, keep the following rule at hand: If the distance between the tip of your thumb and the tip of your little finger is equal or less than 9 in. when fully stretched, use 640 mm. Adapting from one scale to the other takes no adaptation
.