The doble tapa Contreras with lattice braced top is perhaps the most complete engineering system for a classical guitar along with the Quadruple top or Contreras style doble tapa+Contreras Doble tapa V1. I am the only builder on the planet to offer these systems and they are worth every second of time invested in achieving the miracle.  The Contreras doble tapa augments sustain and punch while the lattice equalizes the sound in  way that the mid and high tones are made brilliant and clear. The sound seems to be sustained forever and the power and clarity of sound will keep you in awe. Notice how the bass line is crisp and deep while the trebles shine powerfully in Asturias. The Spanish sound is enhanced to the maximum and the player is given a wide palette of tools to make his music shine. The set of Brazilian rosewood is originally from Minas Gerais (Brazil) and its been air drying for over 92 years. This makes the voicing mature and deep. I decorated her like the queen that she is using a gorgeous Russian rosette from Tula for the soundhole, and matching luxury marquetry for all her sides and African Walnut for the bindings and double converging truss rod. Swift, agile 640mm fret spacing makes this a truly MARVELOUS instrument and passing from one position to the other in Asturias is rendered tremendously EASY.

Making the Contreras Doble tapa The doble tapa, was developed and introduced by  Master Luthier Manuel Contreras the II at the end of the 70s and 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".  The lattice is a concept based on the A frame of grand pianos. The back and sides are kept rigid by means of a sturdy A shaped frame and the top is thinned as much as possible to allow the top to vibrate generously. As you see from the picture above, the thinned area is approximately 1.2 mm thick (VS 2-2.5 in the standard thinning techniques). Lattice delivers a lot of volume (approximately 21 dbs more) and wonderfully clear trebles. 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. You can 
request an upgrade to a Cow hive front and back version.

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