ˌtop-of-the-ˈrange BrE AmE British English , ˌtop-of-the-ˈline American English adjective
a product that is top-of-the-range is the best of its kind:
a top-of-the-range electric guitar
TOP-OF-THE-RANGE
Meaning of TOP-OF-THE-RANGE in English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012