Understanding Loudspeaker Coherency

[Big Daddy]

Originally Posted by crazyBLUE

I will see about the crossovers for my Bostons Big Daddy . This is something I have noticed . Best shown in pics , But the 2 midranges are angled different . The lower one is forwart & the upper one is angled up some & the tweeter is even behind them in relative distance . Albeit a small amount .

The important thing is to push the higher frequency drivers back. If the crossovers in your speakers are first order (6dB per Octave), they are time and phase coherent. If the crossovers are higher order, they may not fully satisfy the rules of phase coherence, but I would still give Boston a lot of credit for being innovative.