Originally Posted by dr.bill
If the 621 shifts the pre-ring up and out what more can any processor/player/speaker do in the chain in terms of apodizing? It needs to be done once as there will be no more pre-ringing after the ring is handled. This is simple logic. So......

Nothing. M has stated this many times here. Do it once and and early as possible (although why early is still not clear when you start to wonder whether HD621 and 808 and 861 may not all be equal)

Rgds,
Nick