i can compare the 163x with allmost the entire 166 series,
the 166,166a,166xl and definately the 266 sound REALLY thin compared to those old compressors, the more compression you use on the 166-series, the more "plastic" your sound becomes, less bottom end, less heavy,
and the more you push the 163x's in compression the harder the sound, the fatter, and thats what i'm after,
now i believe its kinda true, dbx made nice machines before 1980, the new stuff is less interesting i find...
i have my eyes on a 162, looks old and beaten up but the seller says it still works fine,
$575......this should be a steal but its the very last money i got..;don't know, anyone else wants this deal? i might not go for it since i'll be broke then...