BA pilots (A320): Stabilization/Config on final at which altitude?

[Transition]

Hi everyone,

I'm just attending a aircraft noise workshop and discussing a case at EDDM: The noise experts found out that the A320 with IAE-engines (BA) are producing significantly less noise at approx. 2,5 NM on final 08L than A320 with CFM-engines (LH) at the same point.

Now I am wondering: What do you guys do different? LH has to be stabilized at 1000 ft AGL, i. e. gear, config, appropriate sinkrate and thrust.

One idea is that BA is stabilizing at a lower altitude (500 ft?) - could this be the reason?

Thanks for enlightening me :-)