Reduce max power with high efficiency speakers or not?

[Jamington2004]

Yeah - as I thought thanks

One strange thing I noticed though - maybe you can tell me if I’m going mad?

I set the balance while I was on 240watts - and noted the value for my 2 listening positions.

The left hand sofa was 34% and perfectly centred.

Now I switched to 30 watts - the balance is off and I need to push to more like 50% to get it centred

Could it be related to the DSP in anyway?

Thanks
Jamie