Today listening more carefully my 2440 (2441 diaphragms) 2390 combo i realise that the center image wasn't that solid. For many years i was a 2445 user (still loved them) and their center image (when the phase is correct) is solid and precise. Back on the 2440, i put a test record and the phase tests sound aaaalmost correct still without the rock solid imaging of my 2445. I open both drivers to look the terminals and wires are correct from the diaphragms (red spot etc) . Everything looks ok. Changing the phase on one of the drivers from my electronic crossover and the imaging goes to perfect and that is something very weird. The diaphragms are original and in good condition. What it could be?
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Originally Posted by jbl4ever
