help with cab. trayner ybx1510!

i have a trayner ybx1510 cab with a kustom groove 1200 head
it sounds good together but! it dont seem to have the punch im looking for like a 410 cab does any one else feel the same about this cab? it has 1-15 and 2-10s but it just seems middy!!!! if you know what i mean any input would be helpful