-
Well, you said:
As pronounced, there is a weak unstressed vowel because k is a velar plosive.
There's none in 'Hackney' or 'Cockney', my earlier examples, either, unless a speaker deliberately lengthens it (which is obviously perfectly permissible if someone so wishes). It's simply a sequence of two consonants.
and they have a schwa between k and n in the pronunciation guide
Yes, that's wrong.
-
It's simply a sequence of two consonants.
There's a syllable break between the k and n in 'ackney, but not in Knipex. If you come to juddering halt at the k in Knipex in the way you do in 'ackney, it sounds weird (at least to those of us who don't speak Xhosa 🙂), the epenthetic schwa allows it to trip off the tongue.
Don't blame me, I was just telling people what's in the Wikipedia entry, and they have a schwa between k and n in the pronunciation guide. Either it's special (e.g. there is no schwa in ˈknakˌvʊʁst) or the Knipex article is wrong.