JPS Kaptivator vs Aluminata power cord

Has anyone compared the kaptivator to the aluminata. I have read the aluminata has better defined bass but was the same as the kaptivator in the rest of the freq. range. If anyone who has compared the two could share their experience and recomend one over the other one considering that that the difference in price is significant to me. I have a berkeley series one dac that I could upgrade to the series two or buy a dedicated music server with the difference