The Weber Alnico Blue Dogs are a little thicker in the mid-range to lower-mids and I feel would be a better fit for the Black Cat. FWIW: I typically prefer Alnico speakers in all my amps, but I recently picked up a Bad Cat Cub 15r with the Bad Cat V30. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.