Looking for better EQ range

Overall I’m very happy with my Clip Sport, especially compared to the last piece of junk I had. The custom EQ is great but there are times when I wish it had a little better db range, I mean the ability to decrease the low end more or increase the high end. The Clip Sport has five bands which is perfectly acceptable but one more wouldn’t hurt. Does anyone know if SanDisk has anything like this I might be able to upgrade to? Thanks.