There can be pretty big differences in how a speaker sounds producing vocal -vs- dialog.
Most times, the music guys want the fullest range and will only use 2 channel and no sub. Sometimes, they still use a sub but lower the cross point where the sub takes over.
On subs in particular, while technically there whould be no difference. A sub that generally packs a boom down low will be better for HT, while a sub that is silky flat in it's frequency response is definetly what you would want for music duties.
Most times, the music guys want the fullest range and will only use 2 channel and no sub. Sometimes, they still use a sub but lower the cross point where the sub takes over.
On subs in particular, while technically there whould be no difference. A sub that generally packs a boom down low will be better for HT, while a sub that is silky flat in it's frequency response is definetly what you would want for music duties.