1-2 of 2 Answers
As far as I can tell, the only difference is the types of input. The Z625 adds an optical input, whereas the Z623 only has 3.5 mm & RCA inputs. All other specs seem to be the same, or close enough to not make a noticeable difference in user experience. Tested in the store, I couldn't really tell a difference in sound. Bought the Z625 because the Z623 was out of stock. Had them for about a month now and I love them. Great tone, great volume - used for PC gaming and music listening while working.
Sorry, there was a problem. Please try again later.The main difference is the Z625 has an optical audio input allowing for more flexibility while attaching to sources.
Sorry, there was a problem. Please try again later.