Customising an audio page on a Theme

Hi all

I recently purchased a theme for a music blog called K-Boom.

I have used a template for the Audio page which lets me list albums. However I’m limited to 6 albums per page.
Please see the following link to see what I mean:
http://jkinnear.com/?page_id=61

As you can see, it has limited me to 4 albums on the first row, and then 2 on the second row. Then the rest are being pushed on to a new page. This isn’t very good when people filter the albums.
Could someone please advise whether its possible for me to customise it so I can fit more albums on each page.
I can provide my login details if necessary.

Any help would be much appreciated!

Best,
James