nd8

Hi, Now I looking for new combo. In past I have CCL 1x15 (old version) and can´t decide between ND4 1x15 and 2x10 ND8. I know that ND4 pumps all 250W into internal speker and ND8 only with ext. cab. I like 2x10 sound and someone said that 2x10 speakers are more efficient...It´s CCL ND4 really...