  The VOXES project's goal is to realize the first prototype of a high
resolution and high precision X-ray spectrometer for diffused sources, using
Highly Annealed Pyrolitic Graphite (HAPG) crystals combined with precision
position detectors. The aim is to deliver a cost effective and easy to handle
system having an energy resolution at the level of few eV for X-ray energies
from about 2 keV up to tens of keV. There are many applications of the proposed
spectrometer, going from fundamental physics (precision measurements of exotic
atoms at DA$\Phi$NE collider and J-PARC, precision measurement of the $K^-$
mass solving the existing puzzle, quantum mechanics tests) to synchrotron
radiation and applications (X-FEL), astronomy, medicine and industry. Here, the
basic concept of such a spectrometer and the first results from a measurement
of the characteristic Cu $K_{\alpha 1}$ and $K_{\alpha 2}$ X-ray lines are
presented.
