The 803D are awesome speakers that mostly even where rated better than their bigger brothers not because of their better performance just because of their price to performance level....the 803 D where the entry into the 800 diamond world while still affordable. When i rememer correctly then they where the smallest speakers with diamond tweeter in the 800 D lineup. The smaller speaker didnt have diamont tweeter, at least as i bought my 803 D . Still awesome speakers today i think. These speakers where arround 8000€ a pair with all the 800 series technology on board, just compare that to todays prices of the 800 D4 series.