Im thinking of upgrading my naim uniti2 to a used naim nac n272 or something simalar used one, i only listen to cds now , i have a naim nap250dr power amp martin logan aerius i loudpeakers an im waiting for a Bk electronics XLS300-DR subwoofer , in the post now ive also bought a pair of MIT TERMINATOR 4 bi- wire loudspeaker cable , i was told that they are not a good match with electostatic speakers , ah well we will soon find out ,in the post now , many thanks