Registered User
Join date: Oct 2007
113 IQ
My vocal range as beginer is G2-C5. Can that change with training ?
I'm 35 y/o
Registered User
Join date: Oct 2009
80 IQ
Yes, and actually the male voice doesn't really settle until your thirties so age is a non issue.

Get lessons is the simplest method to improve. It is incredibly easy to sing incorrectly and hurt yourself.
Registered User
Join date: Sep 2011
10 IQ
Yes it can change either for better or worse.

Side note: 2.5 octaves are pretty much fine for singing almost anything, focus mostly on the quality and health of your voice rather than quantity i'd suggest.