  We present absolute physical and orbital parameters for three double-lined
detached eclipsing binary systems from the All Sky Automated Survey (ASAS)
catalogue with subgiant and giant components. These parameters were derived
from archival V-band ASAS photometry and new radial velocities. The radial
velocities were calculated from high quality optical spectra we obtained with
the 8.2 m Subaru/HDS, ESO 3.6 m/HARPS, 1.9 m Radcliffe/GIRAFFE, CTIO 1.5
m/CHIRON, and 1.2 m Euler/CORALIE using the two-dimensional cross-correlation
technique (TODCOR) and synthetic template spectra chosen for every system
separately as references.
  The physical and orbital parameters of the systems were derived with the
PHOEBE and JKTEBOP codes. We checked the evolutionary status of the systems
with several sets of isochrones and determined distances for each system. The
derived uncertainties for individual masses of ASAS J010538-8003.7, ASAS
J182510-2435.5, and V1980 Sgr components vary from 0.7% to 3.6% while the radii
are in the range 1% to 24%. For all of the investigated systems such a detailed
orbital and physical analysis is presented for the first time.
