Swan Divia 2.1 sound very nice, but I already have some speakers that are about the exact same. Matter of fact the specs on the 2.1 compared to my E-710's are the exact same except my E-710's are 95 dB sensitivity. I almost forgot that the E-715 cost more than the 2.1 and the E-710 are about $100 cheaper. So I'm not to sure what you meant when you said the 2.1 cost twice as much.