Yeah, it looks like a cross between Gill Sans and Optima. I never thought of them as compatible mates before. The dominant genes are from Gill, though.

I'm in an Illustrator kind of mood this morning. Here is a Gill Sans demo, using Monotype's version (ought to be closest to original). I think the person who did the Vestax lettering noticed the ugly 'a' and took action. My second simulation shows something that makes the bowl look more consistent, similar to the Vestax logo.

Boy, this looks so familiar.
I thought it could be Castle/Salzburg, but no...
At least I think it's safe to assume that this is a modified typeface.

find this clue on a manual i've got ... the logo seems to be a bold version of the Vestax Corporation font.

Look at Berliner Sans Bold its that lower case a