altec 904-8A ...... urei 813B

hi Im new around here and Im building new studio... I own altec speakers 904-8A...I bought them allmost for nothing few months ago and I plan to instal them in my new studio...I read a lot about 904-8a and I love that sound..what you guys think about this speakers .... also i have at home and I can buy urei 813B wich are kind of copy of original 604 altec design... wht could be better for electronic music and big monitoring..... PS: I love sound of altec...904-8a ...but I must ask you here couse you know more...